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13274 ancestors of 4bee8295e36fb61f

2015-02-26
02:33
Simplifications to the description of the nByte parameter to sqlite3_prepare() and friends. (check-in: 4bee8295 user: drh tags: trunk)
2015-02-25
14:25
Make sure the sqlite3_mutex.id field is initialized in the Win32 mutex implementation, even when SQLITE_DEBUG is turned off. (check-in: 6d132e7a user: drh tags: trunk)
13:48
Add support for the linenoise command-line editing library in shell.c. (check-in: 03bbb947 user: drh tags: trunk)
10:54
Add support for linenoise to shell.c. (Closed-Leaf check-in: f7f2598c user: dan tags: linenoise)
01:06
When cleaning with MSVC, prevent superfluous output regarding 'missing' files and directories. (check-in: 034c16bd user: mistachkin tags: trunk)
00:24
Remove an always-false conditional from constructAutomaticIndex(). Put an assert() in its place to prove that the conditional is always false. (check-in: 3af300bf user: drh tags: trunk)
2015-02-24
20:10
Prevent partial indexes on the table on the left hand side of a LEFT JOIN from being incorrectly qualified by a constraint in the ON clause of the join. This relaxes the rule introduced by the previous commit (as the partial indexes on the table on the rhs of the LEFT JOIN may now be qualified by terms within the ON clause). (check-in: 1d6fb43a user: dan tags: trunk)
20:04
Make sure partial indexes are not qualified incorrectly by a constraint that is inside the ON clause of a LEFT JOIN. Fix for ticket [2326c258d02ead33]. (check-in: 491cfe9b user: drh tags: trunk)
18:39
More test cases to help ensure that partial indexes do not get used if their qualifing constraint is inside the ON clause of a LEFT JOIN. (Closed-Leaf check-in: c6399958 user: drh tags: tkt-2326c258)
16:48
This additional fix prevents a partial index from being qualified for use if the constraint that qualifies the partial index is part of the ON clause of a LEFT JOIN. (check-in: 1a1516e4 user: drh tags: tkt-2326c258)
16:05
Make sure partial automatic indexes are not based on terms in the ON clause of a LEFT JOIN. Fix for ticket [2326c258d02ead3]. UPDATE: This fix does not work where the partial index is a named index. (check-in: c0f4e308 user: drh tags: tkt-2326c258)
2015-02-21
15:42
Update document on sqlite3_mprintf() and related functions. Discuss the %w format and point out that obscure ANSI-C formats are not supported. No changes to code. (check-in: f8917ba4 user: drh tags: trunk)
00:56
Fix a compiler warning associated with USE_PREAD64. (check-in: c299e55a user: drh tags: trunk)
00:49
Fix over-length source code lines in os_unix.c. (check-in: 7560a9fa user: drh tags: trunk)
00:19
Keep track of the optimal number of reserved bytes (by looking at reserve byte requests in calls to sqlite3BtreeSetPageSize()) and then change the reserve byte count to the optimal when doing a VACUUM or when using the backup API. (check-in: 28c2b726 user: drh tags: trunk)
2015-02-19
17:16
Fix errors in the EBCDIC upper-case to lower-case translation table. (check-in: 905009f6 user: drh tags: trunk)
16:12
Remove a redundant call to statfs() in the xOpen() method of the unix VFS. Also fix an unused local variable warning. (check-in: 8215727d user: drh tags: trunk)
02:43
Move the os_unix.c file closer to apple-osx. (check-in: 81f242e3 user: drh tags: trunk)
00:29
First small steps toward brining trunk and apple-osx closer together. (check-in: 28284ccc user: drh tags: trunk)
2015-02-13
16:36
Improvements to SQLITE_ENABLE_API_ARMOR. (check-in: 823ad40c user: drh tags: trunk)
12:05
Make sure the prepared statement auto-resets on extended error codes of SQLITE_BUSY and SQLITE_LOCKED even when compiled using SQLITE_OMIT_AUTORESET. (check-in: 3c6ca414 user: drh tags: trunk)
2015-02-12
22:45
For the shell '.import' command, make sure the last column value present is considered before NULL filling any missing ones. (check-in: 9c5bcad1 user: mistachkin tags: trunk)
2015-02-09
18:28
Propagate COLLATE operators upward through function calls and CASE operations. And do not flatten an aggregate subquery into a query that uses other subqueries. Fixes for tickets [ca0d20b6cdddec5] and [2f7170d73bf9], respectively. (check-in: 24e78b8d user: drh tags: trunk)
17:46
Fix WITHOUT ROWID table handing in sqlite3_analyzer. (check-in: 937e0fe7 user: dan tags: trunk)
16:34
Add test cases for the query flattener fix for ticket [2f7170d73bf9abf8]. (Closed-Leaf check-in: dd8f7f75 user: drh tags: tkt-2f7170d7)
16:09
Propagate the COLLATE operator upward through function calls. Initial fix for ticket [ca0d20b6cdddec5e8]. (check-in: c053448a user: drh tags: tkt-2f7170d7)
15:21
Disable the query flattener for aggregate subqueries if the parent query uses other subqueries in its result set or WHERE clause or ORDER BY clause. Preliminary fix for ticket [2f7170d73bf9abf8]. However it still contains a defect similar to the COLLATE problem of [ca0d20b6cddd]. (check-in: 0b7d65e3 user: drh tags: tkt-2f7170d7)
14:07
Rename the internal "EP_Constant" bitmask to a less misleading "EP_ConstFunc". (check-in: 4ef7cece user: drh tags: trunk)
13:42
In selecttrace 0x100 mode, show the parse tree after name resolution instead of before flattening, so that it is always seen even if flattening does not occur. Also: add the hex pointer value to the top of each SELECT tree. (check-in: aa093fef user: drh tags: trunk)
11:54
In selecttrace mode 0x100, show a complete parse-tree both before and after query flattening. This is a change to debugging code only. (check-in: b3c6b8a3 user: drh tags: trunk)
10:20
Fix over-length source code lines in resolver.c. No logic changes. (check-in: c12edb85 user: drh tags: trunk)
2015-02-07
15:16
Fix potential 32-bit integer overflow problems on the offset and length parameters to sqlite3_blob_read() and sqlite3_blob_write(). For sqlite3_blob_open(), make sure the *ppBlob return parameter is zeroed if the interface fails with SQLITE_MISUSE. (check-in: 5df02f50 user: drh tags: trunk)
2015-02-06
14:51
Change the name of ".info" to ".dbinfo" and add an optional second argument which is the ATTACH-ed DB about which information is provided. Provide ".indexes" as an alternative name to the legacy ".indices" command. (check-in: 0f65a7e2 user: drh tags: trunk)
14:19
Add the ".info" command to the shell. (check-in: 0a3100a7 user: drh tags: trunk)
01:07
Add the index_xinfo pragma which gives information about the fields that reference the table PRIMARY KEY in addition to the index key fields. Add extra columns "desc", "coll", and "key" to the index_info and index_xinfo pragmas. Add the "origin" and "partial" columns to the index_list pragma. (check-in: 2743846c user: drh tags: trunk)
2015-02-04
23:13
Merge all recent trunk changes, including the movement of the pragma table into the separate pragma.h header file. (Closed-Leaf check-in: 3af19f84 user: drh tags: index_xinfo)
20:56
Fix a missing mutex in SQLITE_TESTCTRL_IMPOSTER. (check-in: 71691c4b user: drh tags: trunk)
2015-02-03
19:20
Fix a typo in the --help output for speedtest1. Fix a dependency error in the Makefile.in for speedtest1. (check-in: f30a057a user: drh tags: trunk)
2015-02-02
21:34
Break out the (script-generated) pragma parsing tables into a separate file, pragma.h, to make editing easier. (check-in: 32c0325b user: drh tags: trunk)
2015-01-31
02:00
Add the "index_xinfo" pragma. Add new columns to the "index_info" and "index_list" pragmas. (check-in: 30f51d7b user: drh tags: index_xinfo)
2015-01-30
20:59
Change SQLITE_TESTCTRL_INITMODE to SQLITE_TESTCTRL_IMPOSTER. Revise the order of parameters. Give it the ability to reset the schema parse table so that imposter tables can be erased. (check-in: 42d56017 user: drh tags: trunk)
15:52
Added SQLITE_TESTCTRL_INITMODE for improved testability. (check-in: 98e02913 user: drh tags: trunk)
15:40
Add a few simple test cases for SQLITE_TESTCTRL_INITMODE - cases which also test PRAGMA integrity_check. (Closed-Leaf check-in: 3a6e2afe user: drh tags: initmode-testctrl)
2015-01-29
19:27
Fix some duplicated test names. (check-in: 1797158d user: mistachkin tags: trunk)
19:12
Ensure that "PRAGMA wal_checkpoint = TRUNCATE|FULL|RESTART" block on other connections and truncate the wal file as required even if the entire wal file has already been checkpointed. (check-in: 53429689 user: dan tags: trunk)
18:38
Split up the SRC variable in Makefile.msc to avoid over-long cmd.exe commands when TOP is set to a long pathname. (check-in: 7d70ac65 user: drh tags: trunk)
17:54
Add the INITMODE test-control. (check-in: 5940af8e user: drh tags: initmode-testctrl)
11:52
Optimize range constraints on the rowid column of fts3/4 tables even if there is no MATCH clause in the query. (check-in: 85dc1262 user: dan tags: trunk)
2015-01-27
21:24
Fix harmless compiler warnings. (check-in: e7d2ec04 user: mistachkin tags: trunk)
19:01
Fix a bug in the fts3 snippet() function causing it to omit leading separator characters from snippets that begin with the first token in a column. (check-in: adc9283d user: dan tags: trunk)
18:43
Improve the performance of fts3/4 queries that use the OR operator and at least one auxiliary fts function. (check-in: 245e8730 user: dan tags: trunk)
13:17
Fix a (almost always harmless) read past the end of a memory allocation that comes about because the Expr.pTab field is checked on an EXPR_REDUCEDSIZE Expr object before checking the Expr.op field to know that the Expr.pTab field is meaningless. (check-in: e098de69 user: drh tags: trunk)
2015-01-25
20:19
The va_list argument cannot take on a NULL value and cannot be compared with NULL on some platforms (ex: ARM). So do not attempt to do so. (check-in: 1964e656 user: drh tags: trunk)
2015-01-24
12:12
In the command-line shell, make sure stderr is unbuffered so that it automatically flushes. This has always been the case already for unix and on Windows when the output is a console, but apparently was not the case on Windows when the output was a pipe. (check-in: 2a9ea9b4 user: drh tags: trunk)
2015-01-22
12:00
Make sure errors in the FROM clause of a SELECT cause analysis to abort and unwind the stack before those errors have a chance to mischief in the "*" column-name wildcard expander. Fix for ticket [32b63d542433ca67]. (check-in: 9e6eae66 user: drh tags: trunk)
11:29
Change the undocumented ".selecttrace" command in the shell to accept an integer bitmask rather than a boolean. (check-in: bd63bf88 user: drh tags: trunk)
2015-01-21
17:00
Fix an assert() that may fail following an OOM error. (check-in: 5f592359 user: dan tags: trunk)
00:51
Fix harmless compiler warning seen with MSVC. (check-in: 78c2e62b user: mistachkin tags: trunk)
00:48
Enhancements to entropy generation for the Win32 VFS. (check-in: 26190b3c user: mistachkin tags: trunk)
2015-01-20
03:04
Fix another instance of an incorrect value for KeyInfo.nXField on a sorting index. Ticket [f97c4637102a3ae72b79]. (check-in: 0077f645 user: drh tags: trunk)
02:50
Fix another instance of an incorrect value for KeyInfo.nXField on a sorting index. More changes for ticket [f97c4637102a3ae72b79]. (check-in: dc711db4 user: drh tags: branch-3.8.8)
2015-01-19
21:36
Ensure that the KeyInfo.nXField value for ephemeral tables used to implement ORDER BY or GROUP BY clauses is set correctly, so that the sqlite3VdbeFindCompare() routine can choose the correct comparison function. Add assert() statements to the high-speed comparison functions to detect cases where they are inappropriately chosen. Fix for ticket [f97c4637102a3ae72b7911]. (check-in: f7201bb0 user: drh tags: trunk)
21:10
There are asserts in place now that will prevent a recurrence of ticket [f97c4637102a3ae7]. Nevertheless, it is good to add some test cases as well. (Closed-Leaf check-in: e02959b9 user: drh tags: tkt-f97c4637)
20:59
Make sure that the KeyInfo.nXField value of ephermeral tables used for ORDER BY and GROUP BY is set correctly, so that the correct comparison function can be choosen by sqlite3VdbeFindCompare(). (check-in: c16bae5e user: drh tags: tkt-f97c4637)
20:57
Fix the assert() of the previous check-in so that it works even when compiled without SQLITE_DEBUG. (check-in: 38868f84 user: drh tags: tkt-f97c4637)
20:05
Fix compilation on Cygwin when SQLITE_MAX_WORKER_THREADS is greater than zero. (check-in: 2037442c user: mistachkin tags: trunk)
19:48
An alternative way of implementing the assert() that verifies the relative values of KeyInfo.nField+KeyInfo.nXField and the number of columns in a record. This version of the assert() only fires when the high-speed comparison routines are used - which is to say it only fires when the constraint actually matters. (check-in: bf744b49 user: drh tags: tkt-f97c4637)
15:05
Enhance the command-line shell with the ability to set the SQLITE_TESTCTRL_NEVER_CORRUPT flag using: ".testctrl never_corrupt 1". (check-in: 824328f9 user: drh tags: trunk)
00:35
Eliminate all use of sprintf(), strcpy() and strcat() from test logic because OpenBSD hates those functions. (check-in: 10321910 user: drh tags: trunk)
2015-01-18
20:30
Set binary mode for output on Windows when writing a quoted string that might contain newline characters. (check-in: 7096e6c0 user: drh tags: trunk)
01:50
Set the command-line shell stdin to binary mode on windows. (check-in: 80541e8b user: drh tags: trunk)
2015-01-17
15:26
Fix a harmless compiler warning the VFS for Windows. (check-in: ceac571f user: drh tags: trunk)
2015-01-16
19:35
Fix harmless compiler warning. (Closed-Leaf check-in: cab46fb7 user: mistachkin tags: msvcWarn)
12:08
Version 3.8.8 (check-in: 7d68a42f user: drh tags: trunk, release, version-3.8.8)
2015-01-15
17:38
Fix the spelling of "malloc_usable_size" in configure and configure.ac. (check-in: 8f45217c user: drh tags: trunk)
15:47
Makefile enhancements: (1) Rename autoconf/tea/configure.in to autoconf/tea/configure.ac so that it works with the latest versions of autoconf. (2) Add the "amalgamation-tarball" targets to Makefile.in and main.mk (renamed from "dist" in the latter case). (3) Update the README.first file in autoconf/ (4) The TOP macro in Makefile.in is now an absolute rather than a relative path. (check-in: 3bafeec9 user: drh tags: trunk)
2015-01-13
21:26
Simplify some code in rtree, to avoid confusing the optimizer in GCC on some macs: gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00). Prior to these changes, compiling with -O3 would cause incorrect code to be generated. The change to the nodeGetCell() routine is key. The other changes are merely cosmetic details discovered while bug hunting. (check-in: 882181ff user: drh tags: trunk)
01:12
Fix the e_walauto.test test module so that it works on both little-endian and big-ending machines. (check-in: 5682db7b user: drh tags: trunk)
2015-01-12
21:43
Fix harmless compiler warnings when using -W4 with MSVC. (check-in: e693e11d user: mistachkin tags: trunk)
20:25
Fix harmless compiler warning in an assert() statement. (Closed-Leaf check-in: bdbeed01 user: mistachkin tags: msvcW4)
20:20
Add two more classes of harmless MSVC compiler warnings. (check-in: de30d5b0 user: mistachkin tags: msvcW4)
19:59
Silence some harmless uninitialized local variable warnings. (check-in: 44375a34 user: mistachkin tags: msvcW4)
19:49
Harmless compiler warning fixes for 'testfixture' and the miscellaneous extensions when built with the MSVC makefile. (check-in: 923fd660 user: mistachkin tags: msvcW4)
18:52
Merge updates from trunk. (check-in: ca5f2c54 user: mistachkin tags: msvcW4)
18:52
Get things compiling cleanly with MSVC and W4. (check-in: c8725fa5 user: mistachkin tags: msvcW4)
18:38
Fix some harmless compiler warnings. (check-in: 2b8eecbf user: mistachkin tags: msvcW4)
18:27
Fix comments and add another disabled warning for MSVC. (check-in: 43b6b4cc user: mistachkin tags: msvcW4)
18:02
Work in progress on fixing harmless compiler warnings when using -W4 and MSVC. (check-in: 856dd245 user: mistachkin tags: msvcW4)
17:56
Add an assert() in order to calm a scan-build warning. (check-in: 11e81ac2 user: drh tags: trunk)
2015-01-10
18:22
Add detection of the isnan() library function to the configure script. Make the code responsive to the HAVE_ISNAN configuration option. (check-in: 46f3aba2 user: drh tags: trunk)
18:02
Make use of the fdatasync() interface if the HAVE_FDATASYNC macro is true. (check-in: 694228e4 user: drh tags: trunk)
16:49
Improvements to compile-time-option hygiene. Use "#if OPTION" instead of "#ifdef OPTION" in cases where that makes sense, so that -DOPTION=0 will work. Add the "Have-Not" configuration in releasetest.tcl which disables all of the "HAVE_component" compile-time options. (check-in: 9e92a5ed user: drh tags: trunk)
15:21
Add the ability to put comments in the Config and Platform setup sections of the releasetest.tcl script. (check-in: d6f8c899 user: drh tags: trunk)
14:27
Autoconf configure script updates: (1) remove the long-obsolete --enable-cross-thread-connections option. (2) remove the --with-hints= options. (3) Extension loading is enabled by default. (4) Check for strchrnull() (5) Update the --help text. (check-in: 5004063c user: drh tags: trunk)
2015-01-09
21:54
Change the testfixture binary so that it explicitly enabled core files on a crash (on unix). Add a test case to verify that this works. (check-in: 90f422ed user: drh tags: trunk)
20:00
Add SQLITE_ENABLE_STMT_SCANSTATUS to the Update-Delete-Limit configuration in the releasetest.tcl script. (check-in: c70d5eda user: drh tags: trunk)
19:45
Remove an unused preprocessor macro from pcache.c. (check-in: 88a7a967 user: drh tags: trunk)
19:36
Improvements to the sqlite3_stmt_scanstatus() documentation. No changes to code. (check-in: 9309c9bc user: drh tags: trunk)
01:27
Fix three crash problems discovered by afl-fuzz. Ticket [a59ae93ee990a55]. (check-in: fe578863 user: drh tags: trunk)
00:38
Add the "ascii" mode to the command-line shell. (check-in: e1518a94 user: drh tags: trunk)
2015-01-08
22:08
Omit modules from the "valgrind" permutation that fork off separate processes. Also omit selectG.test because it is timing sensitive and valgrind is too slow to get the right answer. (check-in: 662932a6 user: drh tags: trunk)
16:47
Try to fix up the "valgrindtest" target in Makefile.in so that it avoids misuse testing that can trigger false errors. (check-in: 50b5a8af user: drh tags: trunk)
02:28
Fix the extension tags on the "smoketest" makefile target for Windows. (check-in: 826fd311 user: drh tags: trunk)
02:15
In releasetest.tcl: (1) Add the Failure-Detection platform. (2) Re-add the --disable-shared argument on Default that was mistakenly removed by the previous commit. (3) Remove the -ftrapv tests, as we read that -ftrapv does not work in GCC. (check-in: 1f2fb777 user: drh tags: trunk)
01:05
In releasetest.tcl: add options --veryquick and pass-through compiler optimization settings (ex: -O0). Collect the SQLite version number from the main.test output and show it during the summary report at the end. (check-in: e7e7bc1d user: drh tags: trunk)
2015-01-07
19:38
In releasetest.tcl, always use --disable-shared together with --disable-amalgamation because mingw generates a binary that crashes and cannot be debugged using gdb if you don't. (check-in: 19982439 user: drh tags: trunk)
18:44
In releasetest.tcl, copy certain command-line arguments (-g, -D..., etc) down into each test run. (check-in: 889864b5 user: drh tags: trunk)
18:19
Modify the valgrind target to be consistent with regard to target suffixes. (check-in: dc4aa732 user: mistachkin tags: trunk)
18:11
Fix threads-enabled builds on Windows when the amalgamation is not in use. (check-in: 9b92a4d2 user: mistachkin tags: trunk)
14:41
In releasetest.tcl, change the --dryrun option to work as it does in multitest.tcl of TH3. Add the new --trace option that work like the --dryrun option used to work. Add the ability to specify additional configure-script options in the Config array, and create configurations that use --disable-shared and --disable-amalgamation for testing. (check-in: be17ef03 user: drh tags: trunk)
14:09
Add a valgrind test to the Linux-x86_64 platform in releasetest.tcl. (check-in: 4b6df035 user: drh tags: trunk)
2015-01-06
21:31
Fix a problem in the unix implementation of FCNTL_SIZE_HINT on systems that do not support posix_fallocate(). (check-in: af20eae1 user: dan tags: trunk)
16:53
Improved and more rigorous test of large VALUES clauses. (check-in: 6917d9f4 user: drh tags: trunk)
2015-01-05
20:13
Enhance "INSERT INTO ... VALUES" so that the number of rows in the VALUES clause is not limited by SQLITE_LIMIT_COMPOUND_SELECT, and so that the stack depth is constant regardless of the number of rows in VALUES. (check-in: e1c4a359 user: drh tags: trunk)
20:04
Avoid O(N*N) behavior with very long lists of VALUES. (Closed-Leaf check-in: ee30fb35 user: drh tags: many-VALUEs)
19:16
Handle compound-select statements originating from VALUES clauses as a special case that does not use recursion. (check-in: 9ce9e43a user: drh tags: many-VALUEs)
16:27
Towards getting INSERT statements to except many VALUE terms (more than the limit imposed by SQLITE_LIMIT_COMPOUND_SELECT). This check-in segfaults on a stack overflow. And it is slow. (check-in: c9d65f73 user: drh tags: many-VALUEs)
15:48
Remove some needless recursion from compound SELECT processing. (check-in: fe677d13 user: drh tags: trunk)
2015-01-03
18:59
In releasetest.tcl, omit the CC=clang text from the label on Sanitize tests, so that the label fits on an 80-character line. (check-in: 23d4c07e user: drh tags: trunk)
2015-01-02
21:54
Fix a harmless compiler warning. (check-in: e0de5807 user: drh tags: trunk)
20:06
Merge updates from trunk. (Closed-Leaf check-in: ea99f4b2 user: mistachkin tags: asciiMode)
15:55
Add the SQLITE_CONFIG_PMASZ start-time option. (check-in: acb0d1e8 user: drh tags: trunk)
2015-01-01
23:02
Add logic to releasetest.tcl that detects -fsanitize=undefined errors. Fix a few false-positivies that come up when running the sanitize=undefined test. (check-in: 2835e79a user: drh tags: trunk)
19:53
Add the ability to specify an alternative compiler (clang instead of gcc) on the default Makefile. Use this in releasetest.tcl to implement an -fsanitize=undefined test. (check-in: c55c05fe user: drh tags: trunk)
19:11
Enhance the "lemon" executable so that it ignores -f, -W, -O, and -I command-line options. This permits most of the same options that are passed to the compiler to also be harmlessly passed to lemon, and thus simplifies makefiles. (check-in: da408d12 user: drh tags: trunk)
18:54
Fix an error in the computation of the number of hours of runtime for individual test runs in the releasetest.tcl script. (check-in: e2b0ebe2 user: drh tags: trunk)
16:47
Fix a harmless compiler warning in rtree. (check-in: 30891c6b user: drh tags: trunk)
14:13
Fix two test cases in memsubsys1 so that they work with the mmap permutation. (check-in: 66269d0d user: drh tags: trunk)
14:06
Fix the fkey-7.1 test so that it sorts its answer and hence always gives the same answer. (check-in: 5830c557 user: drh tags: trunk)
2014-12-31
20:35
Fix to releasetest.tcl: When doing the secondary _debug runs, convert "fulltest" to just "test". (check-in: ec264bde user: drh tags: trunk)
20:25
Adjust the memsubsys1-5.5 test case to avoid occasional false positives. (check-in: 43241318 user: drh tags: trunk)
20:19
Fix a floating-point round-off error problem in the percentile.test module. (check-in: 456948ea user: drh tags: trunk)
19:58
Disable the bigsort.test module on machine with less than 8GB of available RAM or machine, to avoid thrashing. (check-in: 9d4fe116 user: drh tags: trunk)
18:55
Change threadtest3.c so that SQLITE_SCHEMA returns result in warnings not hard errors. Add the Darwin-x86_64 platform to releasetest.tcl. (check-in: b09a139c user: drh tags: trunk)
18:28
Update the command-line parsing for threadtest3 so that tests are run in the order they are specified on the command-line. (check-in: f489bc31 user: drh tags: trunk)
18:25
Add a missing sqlite3_close() call to threadtest3.c. (check-in: a65a44f3 user: dan tags: trunk)
18:10
Only run walthread5 once when running all tests in threadtest3. (check-in: ca2e4a5b user: drh tags: trunk)
18:08
Do run pragma3.test as part of the mmap permutation. As it works as of [cf48eb608a]. (check-in: 11057e26 user: dan tags: trunk)
15:14
Change the width of output lines in releasetest.tcl from 70 to 79 characters. (check-in: a468d967 user: drh tags: trunk)
14:18
Make sure PRAGMA data_version is updated even if the cache is empty when another connection changes the database. (check-in: cf48eb60 user: drh tags: trunk)
09:52
Do not run pragma3.test as part of the mmap permutation. (check-in: 94101011 user: dan tags: trunk)
2014-12-30
20:40
Add the "mptester" tests to releasetest.tcl. (check-in: 93094a68 user: drh tags: trunk)
19:58
Ensure that when a file is extended using FCNTL_SIZE_HINT the last page is allocated on disk, even if the file will only use part of it. (check-in: c7f84717 user: dan tags: trunk)
19:26
Update the threadtest3 test program so that its output summary is compatible with releasetest.tcl. In threadtest3, do not record errors that contain the string "no such table" as being fatal errors, since they happen sometimes in a race condition in stress1. (check-in: 98cb56e2 user: drh tags: trunk)
18:07
Fix problems with the "inmemory_journal" permutation. (check-in: 79693f04 user: dan tags: trunk)
14:40
If the sorter uses mmap'd temp files, ensure all pages of the temp file have been allocated before it is accessed. Otherwise, a disk-full condition might result in a SIGBUS exception. (check-in: 77664841 user: dan tags: trunk)
13:04
Make SQLITE_CONFIG_PCACHE_HDRSZ accurate (not an over-estimate) on 32-bit systems. (check-in: 340b3477 user: drh tags: trunk)
12:03
Change notify2.test to check that sqlite3_blocking_step() uses CPU more efficiently than sqlite3_step(), not that it results in greater overall throughput for any specific number of threads. (check-in: d904d293 user: dan tags: trunk)
00:57
Round all object sizes that go into computing SQLITE_CONFIG_PCACHE_HDRSZ up to a multiple of 8 bytes. (check-in: b28ce75f user: drh tags: trunk)
2014-12-29
19:54
Fix the --dryrun option in releasetest.tcl. (check-in: 0f9e5496 user: drh tags: trunk)
12:02
Fix some recently added tests so that they work with SQLITE_DEFAULT_AUTOVACUUM=1. (check-in: ef0626ab user: dan tags: trunk)
11:50
Reinstate an assert() by adding an "|| CORRUPT_DB" term. (check-in: 95ce2034 user: drh tags: trunk)
02:55
Fix the "checksymbols" target in Makefile.in so that it actually works. Enhance the releasetest.tcl script to count the total number of tests run over all configurations. (check-in: 4eda1c74 user: drh tags: trunk)
2014-12-28
22:10
Fix WITHOUT ROWID tables so that they correctly deal with PRIMARY KEYs that contain redundant columns. (check-in: 0dfef675 user: drh tags: trunk)
2014-12-25
12:19
Update the SQLITE_CONFIG_PAGECACHE documentation so that the maximum page size is correctly stated to be 65536. (check-in: 3286424b user: drh tags: trunk)
2014-12-24
23:35
Fix the error counter in releasetest.tcl. And report the total time in HH:MM:SS instead of just seconds. (check-in: 6396f804 user: drh tags: trunk)
18:11
Fix a failing assert() in balance_nonroot(). (check-in: e2e32314 user: dan tags: trunk)
17:17
When building the amalgamation with SQLITE_ENABLE_IOTRACE defined, do not mark symbol sqlite3IoTrace as static. (check-in: 5b7ca013 user: dan tags: trunk)
2014-12-23
21:17
Merge the new and improved releasetest.tcl script into trunk. Add a "make releasetest" target to the autoconf makefile. (check-in: 1deb00ec user: drh tags: trunk)
21:10
Remove 'threadtest' as a target on Windows, due to lack of pthreads. Also, change 'fulltest' to 'fulltestonly'. (Closed-Leaf check-in: a010c404 user: mistachkin tags: releasetest-refactor)
21:03
Fix typo in library object file name. (check-in: f49566a7 user: mistachkin tags: releasetest-refactor)
20:42
Permit sqlite3_shutdown() to be called with OMIT_WSD enabled and without having called sqlite3_initialize() first. (check-in: 3f7dbdb5 user: mistachkin tags: trunk)
20:41
In the releasetest.tcl script, show the test target for each configuration that is run. And show the time in HH:MM:SS. (check-in: 2295e9e0 user: drh tags: releasetest-refactor)
20:31
Add the threadtest target to Makefile.in. Add --enable-load-extension to the configure issued by releasetest.tcl. (check-in: cb128067 user: drh tags: releasetest-refactor)
20:22
Draft of changes necessary to make releasetest work on Windows via MinGW. (check-in: af166c5c user: mistachkin tags: releasetest-refactor)
20:05
Fix a potential segfault following OOM error in the test harness. The SQLite core itself is not at fault. (check-in: 1bb26695 user: drh tags: trunk)
19:52
Add the "checksymbols" target to Makefile.in (check-in: 5bd73dba user: drh tags: releasetest-refactor)
19:40
Rework the test/releasetest.tcl script so that it uses the autoconf makefile instead of the test/releasetest.mk makefile. Also add options like --dryrun and --buildonly. Omit the --makefile option and replace it with --srcdir with the default computed relative to the releasetest.tcl script itself. (check-in: 7c85e831 user: drh tags: releasetest-refactor)
2014-12-22
22:02
Fix a typo in an evidence mark on a test script. No changes to code. (check-in: a08b0c75 user: drh tags: trunk)
18:41
Redefine the way PRAGMA data_version works: It continues to change when any other connection commits, including shared-cache connections, but does not change if the local connection commits. (check-in: 7a97826f user: drh tags: trunk)
2014-12-21
11:56
Fixes to the README.md file. No changes to code. (check-in: ef4b734d user: drh tags: trunk)
2014-12-20
22:21
Support manually disabling overlapped file I/O for Windows sub-platforms other than Windows CE. (check-in: b9330b88 user: mistachkin tags: trunk)
21:14
Minor fixes and enhancements to the SQLITE_ENABLE_API_ARMOR functionality. (check-in: cb3e4219 user: mistachkin tags: trunk)
14:50
Add the "PRAGMA data_version" command for checking to see if a database has been modified. (check-in: de50f25c user: drh tags: trunk)
14:34
Update the PRAGMA data_version command so that it reponse to changes made by a shared-cache database connection, and also to changes made by the same database connection. Add test cases to verify the new behavior. (Closed-Leaf check-in: 44ee5383 user: drh tags: data_version_pragma)
2014-12-19
22:20
Merge updates from trunk. (check-in: 555fb71f user: mistachkin tags: asciiMode)
20:27
Adding test cases for the "PRAGMA data_version" command. (check-in: c5fb7d6a user: drh tags: data_version_pragma)
19:28
Experimental "PRAGMA data_version" command for detecting when another process has changed the database file. (check-in: 43db1f44 user: drh tags: data_version_pragma)
18:49
Simplify the implementation of the "header-value" pragmas (schema_version, user_version, freelist_count, and application_id) by making them more table-driven. (check-in: da27a09d user: drh tags: trunk)
2014-12-17
15:03
Experimental opimizations to speed up FK constraint CASCADE and SET NULL action processing. (check-in: 8c5dd6cc user: dan tags: trunk)
14:38
Fix some comments in fkey.c. Add tests to fkey8.test. (Closed-Leaf check-in: 210cb2a6 user: dan tags: experimental-fk-actions)
2014-12-16
20:13
Experimental opimizations to speed up FK constraint CASCADE and SET NULL action processing. Requires further testing. (check-in: 35a20a5f user: dan tags: experimental-fk-actions)
12:46
Fix the e_walauto.test script so that it works on windows. (check-in: 7d092ebb user: drh tags: trunk)
00:20
Enhanced "stress2" testing in the threadtest3.c test program. (check-in: ae43539e user: drh tags: trunk)
00:08
Make sure the sqlite3BtreeCount() routine does not leave index cursors in an inconsistent state, as doing so might result in an assertion fault inside of sqlite3BtreeKey() called from saveAllCursors() if content is deleted out from under the statement that issued the sqlite3BtreeCount() call. (check-in: 5b1b6970 user: drh tags: trunk)
2014-12-15
20:49
Changes to threadtest3 so that "stress2" is more similar to the SDS stress test. (Closed-Leaf check-in: 5648af96 user: dan tags: threadtest3)
16:27
Add new test file e_walauto.test. (check-in: 62ef4514 user: dan tags: trunk)
08:46
Fix errors in threadtest3 tests caused by earlier tests neglecting to close database handles. (check-in: 1d44f1b1 user: dan tags: trunk)
2014-12-13
17:41
Further enhancements to threadtest3 stress tests. (check-in: ba772cff user: dan tags: trunk)
2014-12-12
23:17
Add extra tests to threadtest4.c. Fix a benign data race accessing the text encoding using ENC(db). (check-in: d7bb7ea4 user: drh tags: trunk)
16:39
Add extra tests to threadtest3. (check-in: f6bf86f9 user: dan tags: trunk)
01:27
Add new tests to the threadtest4.c program. Fix a long-standing data race in WAL mode for shared-cache. (check-in: d8d3e6d0 user: drh tags: trunk)
00:52
Remove the KeyInfo cache (for now - perhaps we will add it back in later - or maybe not since it provides negligible benefit but adds a lot of complexity and thread-safety risk). Add a mutex to ATTACH to deal with a data race. (check-in: 03c443ea user: drh tags: trunk)
00:40
Make sure the Btree mutex is held when setting the locking mode and the secure delete flag when attaching a shared-cache database. (Closed-Leaf check-in: 6bef7ede user: drh tags: threadtest4)
00:26
Merge the cell overflow page number cache thread race fix from trunk. (check-in: cefad47e user: drh tags: threadtest4)
00:20
Fix a bug in the threadtest4.c program. Remove the keyinfo cache as it provides minimal performance improvements, and then only at SQL preparation time, not at runtime, and it has problems with data races in shared-cache mode. We might later add the keyinfo cache back but only enable it when shared-cache mode is off. (check-in: b7489f94 user: drh tags: threadtest4)
2014-12-11
19:29
Add the threadtest4.c test program. Not yet working. (check-in: ec3a7446 user: drh tags: threadtest4)
16:38
Fix a race condition to do with very large index keys in shared-cache mode. (check-in: fc157dd7 user: dan tags: trunk)
15:27
Fix a typo in the documentation for sqlite3_threadsafe(). (check-in: 258e747b user: drh tags: trunk)
04:49
Update a comment. (check-in: e0e102a0 user: mistachkin tags: asciiMode)
03:29
Rename a structure member to improve code clarity. (check-in: d48eda16 user: mistachkin tags: asciiMode)
03:25
Remove an unused structure member. (check-in: d8404340 user: mistachkin tags: asciiMode)
03:20
Further simplify shell mode changes. (check-in: cf9c6e7e user: mistachkin tags: asciiMode)
03:12
Simplify and cleanup the implementation of the new ASCII mode for the shell. (check-in: 66a28f7a user: mistachkin tags: asciiMode)
02:28
Merge updates from trunk. (check-in: 5b5d3e4d user: mistachkin tags: asciiMode)
2014-12-10
20:57
Fix a typo causing a test error in e_walhook.test. (check-in: d9f916ba user: dan tags: trunk)
20:29
Add new test file e_walhook.test. (check-in: 2eb6d3e4 user: dan tags: trunk)
17:34
Revise mutex handling by the sqlite3_win32_reset_heap() function. (check-in: eacb3b7b user: mistachkin tags: trunk)
04:58
Fix typos in the documentation for sqlite3_table_column_metadata(). No changes to code. (check-in: 3528f8dd user: drh tags: trunk)
2014-12-09
22:24
Fix the sqlite3_table_column_metadata() routine so that it gives the correct answer for the "rowid" column in a WITHOUT ROWID table. Enhance it so that it can be used to check for the existence of a table by setting the column name parameter to NULL. The routine is now included in the build by default, even without the SQLITE_ENABLE_COLUMN_METADATA compile-time option. (check-in: cf9be419 user: drh tags: trunk)
20:13
Add extra tests to e_walckpt.test. (check-in: 84f95810 user: dan tags: trunk)
19:16
Lower the default SQLITE_SORTER_PMASZ value back to 10, where it has been for the past couple of releases. Applications that need a larger value can set one. (check-in: 1ba8911c user: drh tags: trunk)
19:07
Make the sqlite3_table_column_metadata() interface available by default and without requiring the SQLITE_ENABLE_COLUMN_METADATA compile-time option. Other sqlite3_column_* interfaces that have a run-time penalty even if they are unused still require the SQLITE_ENABLE_COLUMN_METADATA option at compile-time. (check-in: 4f7549ff user: drh tags: trunk)
15:12
Add the SQLITE_REVERSE_UNORDERED_SELECTS compile-time option that causes the "PRAGMA reverse_unordered_selects" setting to be on by default. (check-in: 75a803e6 user: drh tags: trunk)
14:42
Increase the default minimum PMA size for multi-threaded sorting from 10x the page size to 250x the page size. Provide the SQLITE_SORTER_PMASZ compile-time option to change this default. (check-in: b05340fe user: drh tags: trunk)
04:26
Fix harmless compiler warning. (check-in: e97b7a8b user: mistachkin tags: trunk)
2014-12-08
20:29
Add extra tests to e_walckpt.test. (check-in: d6832aa2 user: dan tags: trunk)
20:20
Add missing mutex calls around a call to sqlite3SchemaGet() within sqlite3_open(). (check-in: 45415899 user: dan tags: trunk)
18:08
Add a missing mutex around calls to clear the KeyInfo cache when closing a database connection. (check-in: 7047ce32 user: drh tags: trunk)
17:45
Add a missing mutex around calls to clear the KeyInfo cache when closing a database connection. (check-in: 3ddc7e4c user: drh tags: branch-3.8.7)
2014-12-06
14:56
Avoid accessing a single uninitialized byte when moving a rare 3-byte cell from an internal page to a leaf. This was not actually causing a problem, just a valgrind warning. (check-in: 6aeece19 user: dan tags: trunk)
02:05
Fix a (harmless) uninitialized variable reference in b-tree balancing for auto-vacuumed tables with overflow pages. (check-in: dd1dd445 user: drh tags: trunk)
2014-12-05
21:18
Avoid a potential NULL pointer deference in the sqlite3_stmt_scanstatus() logic. (check-in: 42d44adc user: drh tags: trunk)
21:04
Fix a buffer overread that might occur in analyze.c if SQLITE_ENABLE_STAT4 was defined. (check-in: c1ae1268 user: dan tags: trunk)
20:46
Add new test file e_walckpt.test. Still some tests to come. (check-in: e4db3db3 user: dan tags: trunk)
20:43
Fix a buffer overread that might occur in analyze.c if SQLITE_ENABLE_STAT4 was defined. (check-in: 194c90db user: dan tags: branch-3.8.7)
19:50
Make sure the WhereTerm objects are fully zeroed when they are allocated. (check-in: fdb66733 user: drh tags: trunk)
15:31
The KeyInfo cache must be cleared before closing the btree, not after. Revised fix for ticket [e4a18565a36884b00edf]. (check-in: 7ed3346e user: drh tags: trunk)
15:25
The KeyInfo cache must be cleared before closing the btree, not after. Revised fix for ticket [e4a18565a36884b00edf]. (check-in: 48529508 user: drh tags: branch-3.8.7)
14:44
When closing a (shared-cache) database connection, be sure to clear out all KeyInfo objects cached on Index objects. Fix for ticket [e4a18565a36884b00edf]. (check-in: adca7688 user: drh tags: trunk)
14:34
Improved comment on the sharedB.test test script. (Closed-Leaf check-in: 71f589e3 user: drh tags: fix-stale-keyinfo-cache)
14:07
Test case demonstrating the problem described by ticket [e4a18565a36884b00edf]. (check-in: ffea3e90 user: drh tags: fix-stale-keyinfo-cache)
05:38
When closing a (shared-cache) database connection, be sure to clear out all KeyInfo objects cached on Index objects. Proposed fix for ticket [e4a18565a36884b00edf]. (check-in: 651ed97d user: drh tags: fix-stale-keyinfo-cache)
00:32
Fix compiler warnings. (check-in: e9955c0e user: drh tags: trunk)
00:17
Fix the autoconf and MSVC makefiles, which have been broken for nearly a month. :-( (check-in: 520c2b83 user: drh tags: trunk)
2014-12-04
21:54
Make sure that a DISTINCT query with an ORDER BY works correctly even if it uses a descending index. Fix for ticket [c5ea805691bfc4204b1cb9e]. (check-in: 0d3aef97 user: drh tags: trunk)
20:24
Performance enhancement for single-table queries with many OR-connected WHERE clause terms and multiple indexes with the same left-most columns. (check-in: 1461d543 user: drh tags: trunk)
16:27
If a table is the right operand of a LEFT JOIN, then any column of that table can be NULL even if that column has a NOT NULL constraint. Fix for ticket [6f2222d550f5b0ee7ed]. (check-in: 6f6fcbe4 user: drh tags: trunk)
15:02
Clarification of the meaning of the second parameter to the busy-handler callback. No changes to code. (check-in: 1e2bc484 user: drh tags: trunk)
14:01
Fix comment typos reported on the mailing list. No changes to code. (check-in: 93a71c9f user: drh tags: trunk)
04:50
Add an implementation mark and fix a comment describing the OP_Checkpoint opcode. (check-in: 7475b90c user: drh tags: trunk)
2014-12-03
19:25
Add evidence marks and assert()s used as evidence for checkpoint requirements. (check-in: b2da8afc user: drh tags: trunk)
19:08
Fix over-length comment lines in sqlite.h.in. No changes to code. (check-in: cbd357fd user: drh tags: trunk)
18:32
Simplify the sqlite3_wal_checkpoint() documentation. Add some source code evidence marks. (check-in: 026c44ff user: drh tags: trunk)
16:30
Futher tweaks to the sqlite3_wal_checkpoint_v2() documentation. (check-in: 7d284d04 user: drh tags: trunk)
15:50
Updates to the documentation for sqlite3_wal_checkpoint_v2() and related interfaces, including adding many requirements marks. (check-in: 1e212d98 user: drh tags: trunk)
2014-12-02
20:51
Add support for SQLITE_CHECKPOINT_TRUNCATE. (check-in: edda2b9e user: drh tags: trunk)
19:35
When attempting to restart a wal file, make any required calls to sqlite3_randomness() before waiting on or checking for wal file readers. This restores the behaviour exhibited by the trunk. (Closed-Leaf check-in: 6ee08769 user: dan tags: checkpoint-truncate)
19:04
Add the SQLITE_CHECKPOINT_TRUNCATE option. (check-in: 8e20a434 user: dan tags: checkpoint-truncate)
16:16
Convert two unreachable branches into assert() statements. (check-in: 61b31e77 user: drh tags: trunk)
13:46
Work around overzealous NULL pointer checking in memcpy() and memset() for some systems. (check-in: 0d04f380 user: drh tags: trunk)
2014-11-28
13:35
Remove the ill-designed "-end" option from the command-line shell. Instead, allow multiple SQL or dot-commands as command-line arguments. Any -cmd commands are processed first, followed by other command-line arguments, for backwards compatibility. (check-in: 24fa2e98 user: drh tags: trunk)
11:54
Add the -end option to the command-line shell, which forces it to exit after reading prior command-line options (presumably including one or more -cmd options) and without reading standard input. (check-in: b59397b1 user: drh tags: trunk)
2014-11-27
11:36
Fix a buffer overread during compilation of CREATE VIRTUAL TABLE statements that featured an explicit database name but no virtual table arguments. For example, "CREATE VIRTUAL TABLE main.ft USING fts4". (check-in: f095cde5 user: dan tags: trunk)
04:23
More test cases for the balancer. (check-in: 358ea818 user: drh tags: trunk)
03:46
Fix a problem in the new b-tree balancer that was causing corruption of the fragmentation count. (check-in: f242394e user: drh tags: trunk)
2014-11-25
18:59
Fix an integer overflow bug in vdbesort.c. (check-in: 62382719 user: dan tags: trunk)
2014-11-22
21:37
Always reinitialized the Index.bUnordered and Index.noSkipscan flags before rereading the sqlite_stat1 table, even if SQLITE_ENABLE_STAT4 is defined. (check-in: 1e1221fc user: drh tags: trunk)
19:52
Fix an error in the comments from the previous check-in. (check-in: 9660ce54 user: drh tags: trunk)
18:50
Deploy heuristics (well-commented) to better estimate how much unindexed terms in the WHERE clause filter the number of output rows from a single table. (check-in: 22165994 user: drh tags: trunk)
12:22
Remove a redundant test case (probably a copy/paste error). Add an assert() to where.c to ensure that automatic indexes do not have there output row counts adjusted downward by supplementary constraints. (check-in: eea47933 user: drh tags: trunk)
2014-11-20
23:21
Fix a typo in a requirements mark on the abs() SQL function. (check-in: b1e6c02f user: drh tags: trunk)
23:11
Fix a benign test error on PRAGMA collation_list introduced by a recent checkin. (check-in: 332cc959 user: drh tags: trunk)
23:03
Updates to requirements tags on the mutex documentation. (check-in: fcf8b7e4 user: drh tags: trunk)
19:22
Add requirements marks on the built-in collating functions. (check-in: 4b608b62 user: drh tags: trunk)
15:30
Ensure that when the number of cells on a page drops to zero that the freelist and fragment counter are both cleared. Also add evidence marks corresponding to file-format documentation. (check-in: ef9fbc08 user: drh tags: trunk)
02:58
Fix the encoding of some integers to use the minimum amount of space: -128, -32768, -8388608, -217483648, and -140737488355328. (check-in: 2d7c8da5 user: drh tags: trunk)
02:18
Add some requirements marks to the record formatting logic. Comment changes only - the code is unaltered. (check-in: 9a9627e1 user: drh tags: trunk)
2014-11-19
16:36
Add new requirements marks associated with the file format documentation. No changes to code. (check-in: 6d00bcca user: drh tags: trunk)
14:31
Completely remove an assert() that had previously been commented out. (check-in: 89b3c1c4 user: drh tags: trunk)
14:05
Add an ALWAYS on an always-true branch in wal.c. Fix the ANALYZE command so that it resets the "unordered" and "noskipscan" flags on indices when reloading the sqlite_stat1 table. (check-in: 9ed97a85 user: drh tags: trunk)
2014-11-18
21:54
Adding the "noskipscan" token to an sqlite_stat1.stat field prevents an index for being used with the skip-scan algorithm. (check-in: 4461bf04 user: drh tags: trunk)
21:45
Allow an automatic index to be used if the only uses of declared indexes for the same loop use the skip-scan algorithm. (check-in: c52f7971 user: drh tags: trunk)
20:49
Merge in all the other ROLLBACK fixes from the branch-3.8.7 branch. I don't know why I was doing them one-by-one. (check-in: 296b0c73 user: drh tags: trunk)
20:22
Fix a bug in the sqlite3TripAllCursors() routine that prevents it from reporting errors. It is unknown at this time whether or not this omission can result in any incorrect result in an actual query. (check-in: 2896f264 user: drh tags: trunk)
20:16
Update a couple of test cases to account for the fact that ROLLBACK does not always abort all running SELECT statements. (check-in: abccda76 user: drh tags: trunk)
12:28
Increment the version number to 3.8.7.2 (check-in: 945a9e68 user: drh tags: branch-3.8.7)
02:44
Add an ALWAYS() to an always-true conditional in the WAL rollback logic. (check-in: c5eae8a6 user: drh tags: branch-3.8.7)
2014-11-17
20:33
Remove code from sqlite3BtreeKeySize() made unreachable by the previous check-in. (check-in: 57c4aa98 user: drh tags: branch-3.8.7)
19:44
Avoid calling sqlite3BtreeKeysize() on a b-tree cursor in SKIPNEXT or SKIPPREV state. Cherrypick of [54e7d3fcb1]. (check-in: 2f2ecb99 user: dan tags: branch-3.8.7)
19:42
Avoid calling sqlite3BtreeKeysize() on a b-tree cursor in SKIPNEXT or SKIPPREV state. (check-in: 54e7d3fc user: dan tags: trunk)
19:25
Improved comments on the BtCursor.skipNext field. No changes to code. (check-in: e956e7db user: drh tags: branch-3.8.7)
17:13
When a SELECT statement is terminated by a ROLLBACK TO operation, make the error message be "abort due to ROLLBACK" rather than "callback requested query abort". (check-in: 34fc4a08 user: drh tags: branch-3.8.7)
15:32
Fix a bug in the sqlite3TripAllCursors() routine that prevents it from reporting errors. It is unknown at this time whether or not this omission can result in any incorrect result in an actual query. (check-in: 42588207 user: drh tags: branch-3.8.7)
15:22
Update a couple of test cases to account for the fact that ROLLBACK does not always abort all running SELECT statements. (check-in: eba171e9 user: dan tags: branch-3.8.7)
2014-11-15
19:08
Adding the "noskipscan" token to an sqlite_stat1.stat field prevents an index for being used with the skip-scan algorithm. (Closed-Leaf check-in: 00fe0950 user: drh tags: noskipscan-token)
2014-11-14
19:34
Consider using an automatic-index for a scan even if there exists a possible skip-scan that uses one or more "=" operators. (Closed-Leaf check-in: 93642a65 user: dan tags: experimental-autoindex-fix)
15:42
Do not automatically remove the DISTINCT keyword from "a IN (SELECT DISTINCT ...)" expressions. Fix for [db87229497]. (check-in: 98457a57 user: drh tags: branch-3.8.7)
15:28
Do not automatically remove the DISTINCT keyword from "a IN (SELECT DISTINCT ...)" expressions. Fix for [db87229497]. (check-in: 55e453aa user: dan tags: trunk)
2014-11-13
14:30
Modify the documentation for sqlite3_backup_init() to indicate that it will fail if there is already a read or read-write transaction open on the destination database. (check-in: ef03a203 user: dan tags: trunk)
14:18
Have calls to sqlite3_backup_init() fail if there is already a read or read-write transaction open on the destination database. (check-in: 169b5505 user: dan tags: trunk)
13:42
When a transaction or savepoint rollback occurs, save the positions of all open read-cursors so that they can be restored following the rollback operation. Cherry-pick of check-in [dd03a2802f3f27] (check-in: 402780a9 user: drh tags: branch-3.8.7)
2014-11-12
17:45
Add further tests for rollback operations in the presence of ongoing selects. (check-in: eaf3aae0 user: dan tags: trunk)
14:56
When a transaction or savepoint rollback occurs, save the positions of all open read-cursors so that they can be restored following the rollback operation. (check-in: dd03a280 user: dan tags: trunk)
14:12
Fix the %c format character in sqlite3VXPrintf() so that it correctly handles precisions larger than 70. (check-in: 839a6df9 user: drh tags: branch-3.8.7)
14:07
Make sure that NULL results from OP_Column are fully and completely NULL and do not have the MEM_Ephem bit set. Fix for ticket [094d39a4c95ee4]. (check-in: e1017745 user: drh tags: branch-3.8.7)
2014-11-11
22:55
Enhance ROLLBACK so that pending queries are allowed to continue as long as the schema does not change. This is a cherry-pick of check-in [b5df5ac052]. (check-in: d4b2d5d0 user: drh tags: branch-3.8.7)
19:07
Remove some calls to the 'breakpoint' test command. (check-in: 1412fcc4 user: mistachkin tags: trunk)
16:11
Add tests for sqlite3_blob_bytes(). (check-in: a066a383 user: dan tags: trunk)
14:59
Permit read operations to continue after a ROLLBACK as long as the schema does not change. (check-in: b5df5ac0 user: drh tags: trunk)
12:20
Add new test file e_blobclose.test, containing tests for sqlite3_blob_close(). (check-in: 5a1eac24 user: dan tags: trunk)
01:33
Experimental changes that permit read operations to continue after a ROLLBACK, as long as the schema is unchanged. (Closed-Leaf check-in: fa6e6a9a user: drh tags: read-after-rollback)
2014-11-10
19:16
New test cases for deleting content out from under a SELECT statement. (check-in: 8289c3e9 user: drh tags: trunk)
17:53
Add test file e_blobwrite.test, containing tests for the sqlite3_blob_write() interface. (check-in: 1df77e5f user: dan tags: trunk)
16:49
Add the eval() SQL function extension in ext/misc/eval.c. (check-in: 27cf665b user: drh tags: trunk)
14:42
Shorten over-length source code lines in shell.c. (check-in: 7f3819f6 user: drh tags: trunk)
2014-11-07
14:41
Add new test file e_blobopen.test, containing tests for sqlite3_blob_open(). (check-in: ecbccd0e user: dan tags: trunk)
14:37
Fix another harmless comment typo. (check-in: b45bc80b user: drh tags: trunk)
13:52
In the ".scanstats on" output from the shell, round the estRows value to the nearest integer, rather than rounding toward zero. (check-in: 57005085 user: drh tags: trunk)
13:24
Fix harmless typos in comments. (check-in: 94c564da user: drh tags: trunk)
11:39
Fix typo in sqlite3.h reported on the mailing list. (check-in: 40270321 user: drh tags: trunk)
01:43
Update documentation on sqlite3_config() and add corresponding evidence marks. (check-in: 360c8ca1 user: drh tags: trunk)
2014-11-06
14:43
Added SQLITE_SCANSTAT_SELECTID. Change the value returned by SQLITE_SCANSTAT_EST from sqlite3_int64 to double. Enhanced the formatting and display of scan statistics using the ".scanstats on" command in the shell. (check-in: 20c7614a user: drh tags: trunk)
12:46
Further improvements to the ".scanstats on" display in the shell. Be sure to show the results of all subqueries even if there are gaps in the SELECTID values. Add ".scanstats" to the ".help" output. (Closed-Leaf check-in: ee922682 user: drh tags: scanstatus)
12:17
On the ".scanstats on" output in the shell, initialize the estimated count for the first loop of each subquery to the actual loop count. (check-in: d1c51c84 user: drh tags: scanstatus)
12:08
Changes the formatting of ".scanstats on" in the shell so that the stats for subqueries are grouped together and occur after the main query. (check-in: eacbbd88 user: drh tags: scanstatus)
04:42
Add the SQLITE_SCANSTAT_SELECTID metric. Use it to improve the ".stmtscan on" output in the shell. (check-in: 64ad5761 user: drh tags: scanstatus)
03:55
Change the SQLITE_SCANSTAT_EST parameter so that it returns a double for the estimated number of output rows per loop, rather than a 64-bit integer. Revise the output format for the ".scanstats on" in the shell to make use of this new capability. (check-in: f9684000 user: drh tags: scanstatus)
2014-11-05
21:34
Fixes to the Windows VFS to allow memory mapped files to work without WAL support. (check-in: 272fddc1 user: drh tags: trunk)
21:21
Fix harmless compiler warnings in the new balance_nonroot() routine. (check-in: 83a1e5db user: drh tags: trunk)
19:26
Change the query planner to do a better job of estimating the number rows selected by a BETWEEN operator using STAT4 when both upper and lower bounds are contained within the same sample. (check-in: 2d36be5d user: drh tags: trunk)
15:57
Make sure that NULL results from OP_Column are fully and completely NULL and do not have the MEM_Ephem bit set. Fix for ticket [094d39a4c95ee4]. (check-in: 42705fd7 user: drh tags: trunk)
14:19
Add a test case to check that the previous commit is effective. (check-in: 948d6e5d user: dan tags: trunk)
13:13
Enhance whereLoopCheaperProperSubset(X,Y) so that it does not report true if X uses skip-scan less than Y, since in that case X might deserve to be cheaper even if it is a proper subset. (check-in: c106b755 user: drh tags: trunk)
09:07
Add the ".scanstats on" command to the shell tool. Executing this command causes the shell tool to print values from sqlite3_stmt_scanstatus() after each query is run. (check-in: 7974c0ed user: dan tags: trunk)
2014-11-04
21:38
Improved output formatting for the showstat4 tool. (check-in: 7df82c46 user: drh tags: trunk)
19:52
Skip tests that require WAL mode when it is not enabled. (Closed-Leaf check-in: 6fc4ead2 user: mistachkin tags: winMmapNoWal)
19:37
For the Win32 VFS, allow memory mapped files to work when compiled without WAL support. (check-in: 1fc7e2f3 user: mistachkin tags: winMmapNoWal)
17:23
Add various requirements evidence marks for sqlite3_config() options. (check-in: d423349d user: drh tags: trunk)
14:22
Change the definition of SQLITE_CONFIG_SCRATCH so that at most one scratch buffer is used per thread. Use the generic heap memory allocator for the WalIterator object when running a checkpoint. (check-in: 391c9b85 user: drh tags: trunk)
13:41
Improved documentation and addition of source-code evidence marks for the sqlite3_config() interface. (check-in: 681031a4 user: drh tags: trunk)
12:11
Add the SQLITE_CONFIG_PCACHE_HDRSZ option for sqlite3_config(). (check-in: 6eb03e62 user: drh tags: trunk)
2014-11-03
18:03
Updates to the sqlite3_stmt_scanstatus() documentation. No changes to code. (check-in: d97c324e user: drh tags: trunk)
16:56
Add the experimental sqlite3_stmt_scanstatus() API. For comparing the number of rows actually visited by a loop with the estimate used by the query planner. (check-in: ab3b0fc5 user: dan tags: trunk)
16:39
Fix a typo preventing this from building with SQLITE_ENABLE_STMT_SCANSTATUS defined. (Closed-Leaf check-in: 4c5714ab user: dan tags: scanstatus)
16:35
Refactor the interface to make it more easily extensible. (check-in: 7955342d user: drh tags: scanstatus)
15:33
Add further tests. Fixes so that compilation without ENABLE_STMT_SCANSTATUS works. (check-in: a2303c71 user: dan tags: scanstatus)
14:46
Use exponential buffer size growth in StrAccum, as long as the size does not grow to large, to avoid excess memory allocation resize operations. Also, document the fact that setting scratch memory causes SQLite to try to avoid large memory allocations. (check-in: a518bc33 user: drh tags: trunk)
13:24
When enlarging the size of a StrAccum object, use sqlite3DbMallocSize() to record the entire size of the allocation, not just the requested size. (check-in: 3dda3c93 user: drh tags: trunk)
11:25
Remove unused variable from struct WhereInfo. Add some explanatory comments to new code. (check-in: f5313e0c user: dan tags: scanstatus)
2014-11-01
21:00
Minor performance enhancements to SQLITE_ENABLE_STMT_SCANSTATUS code. (check-in: f13d6ba8 user: dan tags: scanstatus)
20:38
If SQLITE_ENABLE_STMT_SCANSTATUS is defined, record the number of times each VDBE opcode is executed. Derive the values returned by sqlite3_stmt_scanstatus() from these records on demand. (check-in: 9ea37422 user: dan tags: scanstatus)
18:32
Add requirements marks and make minor tweaks to documentation. (check-in: 49188b2b user: drh tags: trunk)
18:08
Minor fixes and documentation improvements for sqlite3_stmt_scanstatus(). (check-in: 8d8cc960 user: dan tags: scanstatus)
2014-10-31
20:11
Add the experimental sqlite3_stmt_scanstatus() API. (check-in: 6a9bab34 user: dan tags: scanstatus)
14:46
Change the command-line shell man-page to use the ".tr" troff directive instead of ".cc" for escaping the initial "." characters in the ".help" output. (check-in: 67f0d469 user: drh tags: trunk)
14:26
Simplify the logic in the cell redistribution loop of balance_nonroot(). Enhance and clarify comments and add assert() statements for additional verification of correctness. (check-in: a07078b6 user: drh tags: trunk)
12:22
Simplify the math slightly, and reduce by one the number of loop iterations, for the loop in balance_nonroot() that moves cells between pages. (check-in: 2e838db8 user: drh tags: trunk)
10:31
Add the "varint.c" utility program in the tool directory. (check-in: ea5d56be user: drh tags: trunk)
02:51
Remove an unnecessary branch from balance_nonroot(). (check-in: 9fc7c88e user: drh tags: trunk)
00:05
In the balance_nonroot() routine, protect the values in aPgno[] array from change during the page sort, so that aPgno[] can be used to avoid unnecessary pointer-map updates for auto_vacuum databases. (check-in: 69c3924f user: drh tags: trunk)
2014-10-30
23:14
Improvements to the wording of some comments. Reinstate an assert() that is only true for non-corrupt database files by adding an "|| CORRUPT_DB" term. (check-in: 67adb448 user: drh tags: trunk)
20:48
Tweaks to comments in btree.c. Minor code changes to enhance testability. (check-in: c7d9aa3a user: drh tags: trunk)
2014-10-29
18:20
Fix the %c format character in sqlite3VXPrintf() so that it correctly handles precisions larger than 70. (check-in: 08a27440 user: drh tags: trunk)
13:59
Version 3.8.7.1 (check-in: 3b7b72c4 user: drh tags: release, version-3.8.7.1, branch-3.8.7)
01:27
Increase the version number to 3.8.7.1 (check-in: 83afe23e user: drh tags: branch-3.8.7)
01:26
Fix problems with running UPDATE and DELETE against a VIEW and referencing the rowid in the WHERE clause. This is a cherrypick of [95f8ebdbf87326f2] and [8523670d50004f3]. (check-in: cc33e846 user: drh tags: branch-3.8.7)
01:18
Disable the use of strchrnul() unless specifically enabled by compile-time options. Cherrypick of check-in [e580470db77d6da9] (check-in: 837368ad user: drh tags: branch-3.8.7)
01:13
In the OP_Column opcode, when extracting a field that is past the end of a short record (because the row was originally inserted prior to ALTER TABLE ADD COLUMN) then make sure the output register is fully NULL and does not contain leftover flags (such as MEM_Ephem) from its previous use. Fix for ticket [43107840f1c02]. This is a cherrypick of check-in [24780f8ddc1683fc]. (check-in: 304ea6ba user: drh tags: branch-3.8.7)
01:07
Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. This is a cherrypick of [3e922208b68563489]. (check-in: a8f9bd1e user: drh tags: branch-3.8.7)
00:58
In the OP_Column opcode, when extracting a field that is past the end of a short record (because the row was originally inserted prior to ALTER TABLE ADD COLUMN) then make sure the output register is fully NULL and does not contain leftover flags (such as MEM_Ephem) from its previous use. Fix for ticket [43107840f1c02]. (check-in: 24780f8d user: drh tags: trunk)
2014-10-28
20:49
Add new test file e_totalchanges.test, containing tests of the sqlite3_total_changes() interface. (check-in: f84af4ad user: dan tags: trunk)
20:35
Update the documentation on the sqlite3_randomness() interface to conform to enhancements associated with the SQLITE_ENABLE_API_ARMOR change. (check-in: 96e9917c user: drh tags: trunk)
18:24
Modify the documentation for sqlite3_changes() to make it more testable. Add tests and minor fixes for the same. (check-in: 41cdd0c4 user: dan tags: trunk)
16:50
Fix a crash that could occur if the WHERE clause of an UPDATE statement on a view that does not feature a column named "rowid" contains a term such as "rowid=?". (check-in: 8523670d user: dan tags: trunk)
16:19
Fix a faulty assert() in the DELETE code generator. (check-in: 95f8ebdb user: drh tags: trunk)
15:58
Trivial simplification to the automatic index logic. (check-in: 23073a05 user: drh tags: trunk)
12:35
Bump the version number to 3.8.8 (check-in: 1a7e711e user: drh tags: trunk)
00:56
Correct the documentation on the maximum size of a scratch allocation. (check-in: 30f86eb3 user: drh tags: trunk)
2014-10-27
22:06
Add special handling for static mutexes in sqlite3_mutex_alloc() when automatic calls to sqlite3_initialize() are enabled. (check-in: 7857d27c user: mistachkin tags: trunk)
20:14
Remove a small amount of unnecessary #ifdeffery from random.c. (check-in: 2b9340c8 user: drh tags: trunk)
19:58
Fix compilation issue with MSVC due to a misplaced variable declaration. (check-in: 9588b345 user: mistachkin tags: trunk)
19:42
Fix harmless compiler warning in an assert statement. (check-in: d33a1ff3 user: mistachkin tags: trunk)
19:39
Fix a typo in the macro name of an #ifdef (check-in: 9646a136 user: drh tags: trunk)
18:34
Add the SQLITE_ENABLE_API_ARMOR compile-time option for extra API parameter validation. Enhance sqlite3_stricmp(), sqlite3_strnicmp(), and sqlite3_uri_parameter() for improved NULL parameter handling. (check-in: ffb9d814 user: drh tags: trunk)
18:21
Fix an unused variable in btree.c:allocateSpace(). (check-in: 63724616 user: drh tags: trunk)
14:26
Optimizations aimed at reducing the number of memcpy() operations required by balance_nonroot(). (check-in: face33be user: dan tags: trunk)
11:25
Add test file e_wal.test. (check-in: fc6920b5 user: dan tags: trunk)
08:02
If a free-slot is found within a page, but using that free-slot would fragment the page further and there are already at least 60 fragmented bytes, degragment the page. This matches the behaviour of the trunk. (Closed-Leaf check-in: 1f80f8c1 user: dan tags: defrag-opt)
07:01
Merge trunk with this branch. (check-in: a13df301 user: dan tags: defrag-opt)
2014-10-25
20:36
Further modifications to new code to better handle corrupt databases. (check-in: 1a8cf0a0 user: dan tags: defrag-opt)
13:42
Increase the resolution of the second parameter to the likelihood() SQL function (the probability value) so that it can handle probabilities as small as 0.00000001. Formerly, it ran out of precision at 0.001. (check-in: 0f08924f user: drh tags: trunk)
12:28
Do not use virtual (and hence redundant) WHERE-clause terms to restrict the content of a automatic partial index. Show when an automatic partial index is used in the EXPLAIN QUERY PLAN output. (check-in: b9ad601e user: drh tags: trunk)
2014-10-24
20:57
Ensure that the "Any prior cache entry associated with newKey is guaranteed not to be pinned" guarantee made to xRekey implementations is not violated. (check-in: ecc3544e user: dan tags: defrag-opt)
19:28
Enhance the automatic index logic so that it creates a partial index when doing so gives the same answer for less work. UPDATE: This change introduced a bug described by ticket [2326c258d02ead33]. (check-in: d95d0313 user: drh tags: trunk)
18:43
Fix some issues in the new code on this branch related to the handling of corrupt databases. (check-in: 19736dd9 user: dan tags: defrag-opt)
16:40
Fix some minor formatting and code organization issues. (check-in: eab8706d user: dan tags: defrag-opt)
15:26
Honor a high likelihood() on range constraints. (check-in: 401235ed user: drh tags: trunk)
14:32
Get the likelihood() functions working on operators like BETWEEN that create virtual terms in the WHERE-clause analysis. (check-in: 03d0498d user: drh tags: trunk)
12:37
Fix two problems. Tests now passing. (Closed-Leaf check-in: 1c220b80 user: drh tags: api-armor)
00:35
Add the SQLITE_ENABLE_API_ARMOR compile-time option. This is a work in progress and is not yet completely functional. (check-in: c297a84b user: drh tags: api-armor)
2014-10-23
01:01
Implement sqlite3_create_collation() by invoking sqlite3_create_collation_v2() with a NULL destructor argument. This saves a little space. (check-in: 9762ad06 user: drh tags: trunk)
2014-10-22
20:07
Disable the use of strchrnul() unless specifically enabled by compile-time options. (check-in: e580470d user: drh tags: trunk)
19:57
Change the 0x800 bit of SQLITE_TESTCTRL_OPTIMIZATIONS so that it disables the loading of STAT3 and STAT4 content, not just the using of that content. Change the internal name of that bit to SQLITE_Stat34. (check-in: ca3b00c4 user: drh tags: trunk)
18:42
Merge latest trunk with this branch. (check-in: 854a54c6 user: dan tags: defrag-opt)
15:27
Take steps to avoid misestimating range query costs based on STAT4 data due to the roundoff error of converting from integers to LogEst and back to integers. (check-in: 3c933bf9 user: drh tags: trunk)
2014-10-21
21:56
Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. (check-in: 3e922208 user: drh tags: trunk)
18:16
Further tuning of the cost estimates for skip-scan loops, especially for cases when skip-scan loops are in competition with regular loops. (check-in: a27861c2 user: drh tags: trunk)
16:01
Add WHERETRACE debugging output to the whereLoopAdjustCost() routine. (check-in: ec1e942f user: drh tags: trunk)
01:05
If a skip-scan is a proper subset of some other scan, then adjust the cost of the skip-scan upward so that it is more costly than the other scan. Such a cost imbalance can arise under STAT4 because of difficulties in getting an accurate estimate for skip-scans. (check-in: f4b22a26 user: drh tags: trunk)
2014-10-17
21:35
Fix a (probably harmless) bug in the CSV output mode of the command-line shell. (check-in: 19fe4a0a user: drh tags: trunk)
11:24
Version 3.8.7 (check-in: e4ab094f user: drh tags: trunk, release, version-3.8.7)
2014-10-16
21:39
Work around MSVC not being able to deduce that a local variable was initialized in a called function. (check-in: 06c576c1 user: mistachkin tags: trunk)
18:34
Changes to work around Win32 and MSVCRT APIs that are not present on Windows CE 200x. (check-in: 1418c006 user: mistachkin tags: trunk)
11:45
Update the vdbe-compress.tcl script to account for expressions of the form (123>var), where "var" should be replaced with a reference to a union member. (check-in: 640345d8 user: dan tags: trunk)
2014-10-15
15:28
Update releasetest.tcl so that x86-64 runs a superset of the x86 tests. (check-in: 3c1e70f4 user: dan tags: trunk)
14:45
Fix a problem causing lock5.test to fail in mmap-mode. (check-in: b3e7b446 user: dan tags: trunk)
11:55
Add a four-byte prefix to the BtShared.pTmpSpace buffer to avoid reading before the beginning of an allocation. (check-in: 9386bfca user: drh tags: trunk)
11:31
Rearrange an expression in vdbemem.c to avoid a (harmless) reference to a possibly unitialized variable. (check-in: 4a7b3fa0 user: dan tags: trunk)
2014-10-14
20:25
Make sure new sqlite3_vtab objects created by the xCreate() virtual table method are initialized by the system, in accordance with the documentation. (check-in: eab82330 user: drh tags: trunk)
17:27
Fix some code duplication issues on this branch. Add minor optimizations to the new code. (check-in: 58d7793b user: dan tags: defrag-opt)
2014-10-13
23:39
Optimize a database corruption test inside of the OP_Column opcode. (check-in: 005e5b38 user: drh tags: trunk)
20:12
Use the padding word in the Mem object as temporary storage for serial_type value in OP_Record, and thus avoid a redundant computation of the serial_type for each column. (check-in: 4b3b65ee user: drh tags: trunk)
18:09
Merge trunk changes into this branch. (check-in: d5b7c5a8 user: dan tags: defrag-opt)
18:03
Further work on balance_nonroot(). (check-in: 6594f9b4 user: dan tags: defrag-opt)
17:42
Three small optimizations to vdbeaux.c. (check-in: 04892f8b user: drh tags: trunk)
16:02
Reduce the CPU load imposed by sqlit3VdbeCursorMoveto() by factoring out some of its functions and by avoiding unnecessary calls. (check-in: c2799aec user: drh tags: trunk)
13:00
Remove the OPFLAG_CLEARCACHE flag from OP_Column. In its place, change the P3 parameter of OP_SorterData to be the index of the pseudo-table cursor whose record header cache is to be cleared. This gives a small size reduction and performance increase. (check-in: 20062f49 user: drh tags: trunk)
2014-10-12
22:37
Remove the VdbeCursor.lastRowid cache of the current rowid, since maintaining the correct cache value uses more CPU cycles than just recomputing the rowid on the occasions when it is actually needed. Replace it with the VdbeCursor.aOffset field which used to be computed from VdbeCursor.aType when needed. Saves 100 bytes of code space and runs 0.2% faster. (check-in: 91384a7d user: drh tags: trunk)
2014-10-11
23:31
Performance optimization and very slight size reduction for OP_Column. (check-in: 869c30e4 user: drh tags: trunk)
20:00
Attempt to further reduce memcpy() in balance_nonroot(). (check-in: fec849dc user: dan tags: defrag-opt)
17:22
Simplification to the insertCell() routine in btree.c, resulting in a performance boost and a very small size decrease. It turns out that the extra work involved in sometimes avoiding an memcpy() of the first four bytes of a record takes more time than just unconditionally copying those four bytes. (check-in: 66de1558 user: drh tags: trunk)
10:52
Require the SQLITE_ENABLE_RTREE compile-time option in speedtest1.c in order to enable the R-Tree tests. (check-in: 5d29a033 user: drh tags: trunk)
02:12
Make sure that a GROUP BY that also implements an ORDER BY scans the table in the correct order. Fix for ticket [ba7cbfaedc7e6]. (check-in: 7a32fdfd user: drh tags: trunk)
01:22
Remove an unnecessary conditional from the EXPLAIN QUERY PLAN logic. (check-in: c5dc83eb user: drh tags: trunk)
2014-10-10
20:52
Account for the ASC/DESC properties of ORDER BY expressions when using the same index for GROUP BY and ORDER BY. Candidate fix for [ba7cbfaedc]. (Closed-Leaf check-in: 2a957396 user: dan tags: experimental)
19:15
Restrict the scope of the explainIndexRange() function in where.c. (check-in: c3012452 user: drh tags: trunk)
19:10
Fix a failing test case in index5.test. Also tweak the way cache memory is divided between read-only and dirty pages when using SQLITE_CONFIG_PAGECACHE to reduce IO in some cases. (check-in: 8541dfb3 user: dan tags: trunk)
18:09
Changes to enable compiling using VC6. (check-in: 9ee5686a user: drh tags: trunk)
17:47
When using the -config option to releasetest.tcl, default the testing type to "fulltest" if it is not specified on the command line. (check-in: cf291cbe user: drh tags: trunk)
17:44
Provide the new "-config CONFIG" option to the test/releasetest.tcl script, which allows one to run a single test configuration selected by name. (check-in: d479e32b user: drh tags: trunk)
17:20
Add the estimated number of output rows to the EXPLAIN QUERY PLAN output if compiled with SQLITE_EXPLAIN_ESTIMATED_ROWS. This feature is off by default for the time being. (check-in: daa8314f user: drh tags: trunk)
15:47
Simplify the code used to generate the text for EXPLAIN QUERY PLAN. (check-in: beea1efc user: drh tags: trunk)
15:01
Fix a potential problem in the whereRangeScanEst() routine when STAT4 is active. The problem was introduced by recent enhancements. (check-in: 68e1b4de user: drh tags: trunk)
13:08
Cause the command-line shell to return non-zero if the final SQL statement is incomplete. (check-in: 177fff3b user: drh tags: trunk)
2014-10-09
19:35
Change the balance_nonroot() routine to reduce the amount of memcpy work that takes place. This is a work in progress. (check-in: 29304499 user: dan tags: defrag-opt)
15:08
Allow FTS tokenizers to choose whether or not to consider the "*" character part of tokens or not. This restores the pre-[e21bf7a2ad] behaviour. Also fix a problem causing FTS to interpret tokens beginning with "*" characters as EOF. (check-in: 49dfee7c user: dan tags: trunk)
14:10
Add a test case for the memory leak fixed by the previous check-in. (check-in: bae36d54 user: drh tags: trunk)
14:00
Fix a memory leak associated with the FTS4 matchinfo() function. (check-in: fb8da824 user: drh tags: trunk)
2014-10-08
19:33
Remove an always-true branch in whereRangeScanEst(). Replace it with an assert(). (check-in: 42e48fd3 user: drh tags: trunk)
15:53
Fix up test cases to account for the new SQLITE_LIMIT_WORKER_THREADS limit. (check-in: 6483d426 user: drh tags: trunk)
14:28
Set the connection-specific lastRowid value before calling any SQL function. (check-in: dff0f642 user: drh tags: trunk)
13:34
Ensure that the Pager.pTmpSpace allocation is correct even if an OOM error occurs while reducing the page size. (check-in: e4b43967 user: drh tags: trunk)
11:11
Remove some temporary code in mallocA.test that was accidentally checked in. (check-in: dedd15f7 user: dan tags: trunk)
02:53
Fix the STAT4 range scan estimates for DESC indexes. (check-in: e3fe8400 user: drh tags: trunk)
00:08
More intuitive labels on ".wheretrace" output. (check-in: adcb3fed user: drh tags: trunk)
2014-10-07
23:02
Make sure the sqlite3VdbeMemClearAndResize() routine is never called with a zero size parameter, since a size of zero could lead to either a memory leak or an assertion fault. (check-in: f672a380 user: drh tags: trunk)
20:09
Fix the corruptI.test script so that it works with SQLITE_ENABLE_OVERSIZE_CELL_CHECK and with SQLITE_DEFAULT_AUTOVACUUM=1. (check-in: e405b9e4 user: drh tags: trunk)
16:59
Restrict the scope of the valueToText() routine. (check-in: 13c962b3 user: drh tags: trunk)
15:46
Enhance (and fix) the MEMTYPE tags associated with heap memory allocations when SQLITE_MEMDEBUG is used. (check-in: ca5b789e user: drh tags: trunk)
2014-10-06
18:33
Remove unreachable branches in decodeIntArray() when compiling without STAT3 or STAT4. (check-in: 80e1baa5 user: drh tags: trunk)
14:37
Improve the accuracy of the estimates used when searching an index for values not present in any stat4 samples. (check-in: 3aff9a9c user: dan tags: trunk)
12:41
Fix a harmless compiler warning inside an assert() in FTS4. (check-in: 418f3c9a user: drh tags: trunk)
2014-10-04
19:31
Tweaks to documentation on sqlite3_open() and sqlite3_bind(). No code changes. (check-in: b8f7f19d user: drh tags: trunk)
11:59
Updates to documentation and requirements marks. No code changes. (check-in: 0f8102d7 user: drh tags: trunk)
10:22
Add a test to show that the change on this branch is effective. (Closed-Leaf check-in: fc619be0 user: dan tags: stat4-avgeq)
00:07
Avoid leaking Index.aiRowEst memory if an OOM causes a rollback which deletes the index before the aiRowEst deletion code in sqlite3AnalysisLoad() routine has a chance to run. Since the aiRowEst now might be deleted from freeIndex() which does not always have a db pointer, make sure the aiRowEst memory is not held in lookaside. (check-in: efd87ba1 user: drh tags: stat4-avgeq)
2014-10-03
19:29
Fix a division-by-zero error that might occur if the sqlite_stat1 table is corrupt. (check-in: f9c053b2 user: dan tags: stat4-avgeq)
19:16
Improve the accuracy of the estimates used when searching an index for values not present in any stat4 samples under some circumstances. (check-in: e6f7f97d user: dan tags: stat4-avgeq)
16:00
Add requirements marks on the sqlite3_db_status() interface implementation. Fix a typo in the documentation. Fix the new sqlite3_result_text64() routine so that it works correctly with an encoding parameter of SQLITE_UTF16. (check-in: d2fc3227 user: drh tags: trunk)
14:54
Update to requirements marks related to changes in the memory allocation interface and enhancement of the documentation regarding DEFAULT clauses in CREATE TABLE. (check-in: 440705b9 user: drh tags: trunk)
2014-10-02
21:52
Avoid a NULL pointer deference when processing the IS operator if the right-hand side is an illegal "#ID" style variable. Fix for ticket [8c32a33a53092c85a15b] (check-in: ffe75736 user: drh tags: trunk)
2014-10-01
13:17
Show the TK_DOT operator in the TreeView debugging output. No changes to production code. (check-in: 07c89940 user: drh tags: trunk)
12:01
Avoid ever writing before the start of an allocated buffer in the DIRECT_OVERFLOW_READ code. Fix for [e3a290961a6]. (check-in: c3c15d20 user: dan tags: trunk)
2014-09-30
19:04
Improvements to the new syntax-tree output routines: Omit the "END SELECT" mark and instead terminate the graph at the last item. Increase the maximum tree depth to 100. (check-in: 5ce05757 user: drh tags: trunk)
17:31
Enable the query planner to deal with WHERE clauses that have OR terms nested within AND terms that are nested within OR terms. Also remove an unused function declaration. (check-in: b6b28918 user: drh tags: trunk)
17:03
Further enhancements to the "wheretrace" debugging output. (check-in: 670993eb user: drh tags: trunk)
14:14
Enhanced debug output for OR-logic in the query loop optimizer. (check-in: 2e375eae user: drh tags: trunk)
13:46
Show tree diagrams of data structures in the debugging output when the 0x100 bit is set on sqlite3WhereTrace or sqlite3SelectTrace. (check-in: 92e0b4bd user: drh tags: trunk)
12:33
Remove the SQLITE_ENABLE_TREE_EXPLAIN compile-time option. Add alternative debugging display routines: sqlite3TreeViewExpr(), sqlite3TreeViewExprList(), and sqlite3TreeViewSelect(). (check-in: 4ff51325 user: drh tags: trunk)
2014-09-29
15:42
Fix the header comment in sqlite3VdbeDeletePriorOpcode(). No changes to code. (check-in: 7fb16268 user: drh tags: trunk)
15:00
Ensure that the OP_Prev opcode verifies that content has not been deleted out from under the cursor. Fix for ticket [209d31e3161b9e9ff]. (check-in: 414f0d6a user: drh tags: trunk)
2014-09-27
05:00
Reduce the amount of memcpy() required by defragmentPage(). (check-in: 3edab995 user: drh tags: defrag-opt)
2014-09-26
18:30
Add an assert() to verify the last-row-id for the database just prior to calling a SQL function. (check-in: d026f0c9 user: mistachkin tags: trunk)
02:41
Fix the "PRAGMA integrity_check" command so that it avoids formatting error message context messages until it actually needs to generate an error message. This avoids much formatting, and hence greatly improves the performance of "PRAGMA integrity_check" in the common case when there are no errors. It also makes the code a little smaller. (check-in: 83913515 user: drh tags: trunk)
01:10
If an SQL function makes a recursive call to do an INSERT into the same database, make sure that the last_insert_rowid() for that INSERT is recorded. (check-in: e93aecc0 user: drh tags: trunk)
2014-09-25
17:42
Minor code reformatting and comment change, to improve clarity. No logic changes. (check-in: baeb72a3 user: drh tags: trunk)
13:17
Simplifications to the SQL function and aggregate calling procedures. (check-in: 3467049a user: drh tags: trunk)
12:31
Simplification to the random rowid picking logic that begins running when the maximum possible rowid has already been used. (check-in: 1330c72e user: drh tags: trunk)
11:08
Still more performance enhancements to the LIKE and GLOB operators. (check-in: 6c8924ca user: drh tags: trunk)
03:51
More performance optimization for the LIKE and GLOB operators. (check-in: 5ab1023d user: drh tags: trunk)
02:44
Change that might allow SQLite to build and work using the EBCDIC character set. (check-in: ef30e035 user: drh tags: trunk)
00:56
Size reduction and performance improvement in the LIKE and GLOB operators. (check-in: b2c89ef4 user: drh tags: trunk)
2014-09-24
19:47
Have each open database allocate its pTmpSpace when the first write cursor is opened, rather than on each insert or delete, for a small space savings and performance boost. (check-in: 99323552 user: drh tags: trunk)
18:31
Small performance and size optimization for btreeUnlockIfUnused(). (check-in: 13c746f8 user: drh tags: trunk)
13:20
Do not allow parameters in a DEFAULT clause of a CREATE TABLE statement. Ticket [78c0c8c3c9f7c1]. (check-in: 1ad2bc1e user: drh tags: trunk)
02:05
Have the clearCell() routine return the cell size to the caller, rather than have the caller make a separate call to cellSizePtr(). (check-in: f21d2175 user: drh tags: trunk)
01:23
Shorten all lines of source code in btree.c to at most 80 characters. No logical changes. (check-in: 5dd41cdb user: drh tags: trunk)
00:59
Add the MemPage.noPayload boolean and use it to help cellSizePtr() and btreeParseCellPtr() run faster. (check-in: 8e337531 user: drh tags: trunk)
2014-09-23
23:12
Remove an unused C-preprocessor macro. No functional changes to the code. (check-in: f480582c user: drh tags: trunk)
22:36
Avoid calling btreeParseCellPtr() from within fillInCell() since most of what btreeParseCellPtr() computes is ignored by fillInCell(). Instead, have fillInCell() compute the values it needs inline. Performance improvement. (check-in: 4147f667 user: drh tags: trunk)
21:25
Simplify the CellInfo structure for a size reduction and performance improvement. (check-in: bf59df66 user: drh tags: trunk)
18:30
Add the "multiplex_truncate" PRAGMA to the multiplexor extension, for querying and setting the truncate flag on a database connection. (check-in: d2962a5f user: drh tags: trunk)
01:40
Adjust skip-scan cost estimates slightly so that a full table scan is preferred over a skip-scan to a column with only two distinct values. (check-in: ae9a42b2 user: drh tags: trunk)
2014-09-22
20:38
Fix to payload size overflow detection in the cellSizePtr() change of the previous check-in. (check-in: 76097440 user: drh tags: trunk)
19:51
Size reduction and substantial performance increase for cellSizePtr(). (check-in: bc8bbf32 user: drh tags: trunk)
14:30
Tune the query planner to be more aggressive about using automatic indexes on views and subqueries for which there is not opportunity to declare a persistent schema index. (check-in: 41de1643 user: drh tags: trunk)
03:22
Disable shared memory operations using the unix-nolock VFS. (check-in: 10a6e510 user: drh tags: trunk)
2014-09-21
22:31
Correctly handle an ORDER BY clause on an outer query when applying the compound-subquery flattening optimization. Ticket [d11a6e908f]. Also add the SQLITE_ENABLE_SELECTTRACE option for additional debugging and analysis information about select statement processing. (check-in: d5880abd user: drh tags: trunk)
20:31
Add test cases for ticket [d11a6e908f]. (Closed-Leaf check-in: 9683e001 user: drh tags: select-trace)
17:51
Add the "showauth" extension in ext/misc. (check-in: 28d52c1c user: drh tags: select-trace)
00:27
Improved ".selecttrace" output. (check-in: c0b61f70 user: drh tags: select-trace)
2014-09-20
20:38
Candidate fix for [d11a6e908f]. (check-in: 89398880 user: dan tags: select-trace)
20:24
Fix the SELECTTRACE_ENABLE macro so that it doesn't cause problems for testfixture. Add new SELECTTRACE() calls. (check-in: f1ba68f1 user: drh tags: select-trace)
18:18
Enable SELECT query planning tracing when compiled with SQLITE_ENABLE_SELECTTRACE and either SQLITE_DEBUG or SQLITE_TEST. (check-in: cbe0cf9d user: drh tags: select-trace)
00:35
Fix the usage of the _GNU_SOURCE and _BSD_SOURCE macros in the main internal header file, sqliteInt.h. Set HAVE_STRCHRNUL to 1 by default on Linux only. (check-in: 59e2c9df user: drh tags: trunk)
00:29
Only enable HAVE_STRCHRNUL by default on linux, as that is the only place it appears to work by default. (Closed-Leaf check-in: 0fac2c04 user: drh tags: sqliteIntMacros)
00:02
Revise macro usage in 'sqliteInt.h'. (check-in: 35db3e2f user: mistachkin tags: sqliteIntMacros)
2014-09-19
22:44
Simplify two conditionals and add testcase() macros to the affinity transform logic in the comparison operators. (check-in: 544664ca user: drh tags: trunk)
22:30
Recognize the invariant that a Mem object cannot be MEM_Dyn and have a non-zero szMalloc at the same time. Enforce this with assert()s and exploit it in the sqlite3VdbeMemClearAndResize() routine for a performance increase. (check-in: 3b21cf2b user: drh tags: trunk)
22:01
Tighten the conditions under which applyNumericAffinity() be called and add assert() statements to prove that it is never called otherwise. (check-in: e996ca32 user: drh tags: trunk)
20:13
Fix the affinity on inserts into the ANALYZE tables. Change the affinity characters to be upper case, to make the P5 parameter of comparison operators easier to read. (check-in: 3f3ca76a user: drh tags: trunk)
19:43
Do not attempt to extend the temp file if VFS version 3 is not supported and hence memory mapped I/O is unavailable. (check-in: 3ab20ba1 user: drh tags: trunk)
19:00
Make the "nolock" VFS on unix a version-3 VFS so that the sorter can use memory-mapped I/O. (check-in: 3db78d61 user: drh tags: trunk)
16:56
Remove a local variable from the OP_Column implementation, resulting in a modest size reduction and a performance increase. (check-in: 6199760d user: drh tags: trunk)
16:13
Small size reduction and performance increase for releaseMemArray(). (check-in: 24cd32d6 user: drh tags: trunk)
16:02
Updates to comments. No code changes. (check-in: 9b42c3da user: drh tags: trunk)
15:28
The OP_Column opcode runs faster and is smaller by manually in-lining the code that persists string values in the output register. (check-in: 36b613cc user: drh tags: trunk)
04:42
Add the sqlite3VdbeMemClearAndResize() function. Fix a sorting-index prefilter problem. (check-in: 987a7a21 user: drh tags: trunk)
02:01
Make sure that the sorting-index pre-filter recognizes that a rowid reference might be sortable. This fixes a performance regression. (Closed-Leaf check-in: 72727b68 user: drh tags: Cplusplus-comment)
00:43
Add the sqlite3VdbeMemClearAndResize() interface to be used in place of sqlite3VdbeMemGrow(). A C++ style comment was left in this check-in by mistake, and so it has been moved into a branch to avoid problems in any future bisects on windows. (check-in: 5b9b8987 user: drh tags: Cplusplus-comment)
2014-09-18
21:25
Add the Mem.szMalloc element to the Mem object and use it to keep track of the size of the Mem.zMalloc allocation. (check-in: 9c09ac35 user: drh tags: trunk)
18:55
Correct typos in comments. No changes to code. (check-in: 55879932 user: mistachkin tags: trunk)
17:52
Merge the Mem.r value into the MemValue union as Mem.u.r. Hence, a Mem can now store an integer or a real but not both at the same time. Strings are still stored in a separate element Mem.z, for now. (check-in: 4c8c89d7 user: drh tags: trunk)
16:28
Performance improvement for affinity transformations on comparison operators. (check-in: d7afdcba user: drh tags: trunk)
14:36
Since numeric affinity is the most common case, check it first. Interchange the NONE and TEXT affinity codes for easier checking of no affinity. (check-in: 4ef4c9a7 user: drh tags: trunk)
09:59
Modify an assert() within sqlite3PagerWalFramesize(), a function only ever used by zipvfs, to account for recent zipvfs changes. (check-in: 3bd7c1b2 user: dan tags: trunk)
02:20
Fix harmless warnings on 32-bit MSVC builds. (check-in: 5192f964 user: drh tags: trunk)
01:50
Make sure of the strchrnul() library function on platforms where it is available. (check-in: ef1aa10b user: drh tags: trunk)
01:29
Merge micro-optimizations into trunk after fixing the build on MSVC. Performance now shows 7.58% faster than the 3.8.6 release on x64 with gcc 4.8.1 and -Os. (check-in: 1de558bc user: drh tags: trunk)
01:21
Fix compiler warnings and change the nullMem structure initializer into a format that MSVC can understand. (Closed-Leaf check-in: 163bfae8 user: drh tags: micro-optimizations)
2014-09-17
23:37
Performance improvement and slight size reduction to the comparison operators in the VDBE. (check-in: 14052a7d user: drh tags: micro-optimizations)
16:41
In the Mem object, stop requiring that Mem.xDel be NULL when the MEM_Dyn bit is clear. Also reduce the amount of initialization of Mem objects. All for a small size reduction and performance increase. (check-in: fdddb477 user: drh tags: micro-optimizations)
14:52
Improved interface to the Mem object handling. Small size reduction and performance increase. (check-in: 4e437844 user: drh tags: micro-optimizations)
2014-09-16
21:54
Continuing cleanup of memory register memory allocation handling. (check-in: 2598aedc user: drh tags: micro-optimizations)
20:05
Make sure registers are cleared properly prior to being used to store the result of an OP_Column operator. (check-in: 78fb8838 user: drh tags: micro-optimizations)
18:22
Simplification of the OP_Column logic for the case of rows with overflow. (check-in: f7367803 user: drh tags: micro-optimizations)
14:55
Remove an unused parameter from sqlite3VdbeIdxRowid(). This is cosmetic only as the C-compiler optimizers were already omitting this parameter on amalgamation builds. (check-in: a10a6bba user: drh tags: micro-optimizations)
14:37
Reduce the number of arguments to RecordCompare functions from 4 to 3, resulting in a small performance increase. (check-in: 8239c35a user: drh tags: micro-optimizations)
14:16
Reorder the elements of the Mem object for a small size reduction and performance improvement. Moved into a branch because MSVC is unable to handle named structure initializer on nullMem. (check-in: 0be3019e user: drh tags: micro-optimizations)
13:30
Changes to sqlite3VdbeRecordUnpack() to make it slightly smaller and faster. (check-in: 8fb90da7 user: drh tags: trunk)
03:24
Performance improvement to the sqlite3MemCompare() routine by factoring out sqlite3BlobCompare(). (check-in: 20ed2321 user: drh tags: trunk)
2014-09-15
16:53
Fix tool/showwal.c so that it handles WAL files that contain 64KiB pages. (check-in: 4060efb6 user: dan tags: trunk)
16:50
Avoid attempting to call the xFetch() method of an sqlite3_io_methods object with a version number less than 3. (check-in: dedaa6fb user: dan tags: trunk)
14:59
Remove the EXPENSIVE_ASSERTS in pcache.c having to do with the pSynced field of the Pcache object, as they are incorrect, as revealed by recent pcache enhancements. (check-in: 69a64560 user: drh tags: trunk)
14:46
Do not flatten aggregate subqueries that contain min() or max() functions so that if the min()/max() are discarded by the outer query, they still function and cause non-aggregate expression to be evaluated on the minimal or maximal row. (check-in: 0bdf1a08 user: drh tags: trunk)
11:14
Adjust comments to show that subquery flattening restriction (10) was removed from the code back in 2005. This is a comment change only. (check-in: 4ff0eb96 user: drh tags: trunk)
2014-09-12
20:30
Small performance improvement to the dirty list handling in the pager. (check-in: b332a84d user: drh tags: trunk)
17:41
Simplify the way the column cache is managed around OP_Move instructions. (check-in: 32055623 user: drh tags: trunk)
04:28
Fix a problem with parser memory allocation on 32-bit systems. (check-in: 2f69a1fa user: drh tags: trunk)
2014-09-11
23:34
Fix an issue with sqlite3_bind_text64() with the SQLITE_UTF16 encoding parameter. Remove some unreachable code from the text64() and blob64() implementation. (check-in: 34292b08 user: drh tags: trunk)
18:44
Add new APIs that take 64-bit length parameters: sqlite3_malloc64(), sqlite3_realloc64(), sqlite3_bind_blob64(), sqlite3_bind_text64(), sqlite3_result_blob64(), and sqlite3_result_text64(). Add the sqlite3_msize() interface. Internal memory allocation routines now use 64-bit unsigned length parameters for safety. Fix the sqlite3_get_table() to use sqlite3_realloc64() to avoid a integer overflow problem. (check-in: 7e4978c0 user: drh tags: trunk)
17:27
Add the SQLITE_USER_AUTHENTICATION extension to the trunk. This extension is disabled by default. Special compilation procedures are need to enable it. (check-in: 65884d4f user: drh tags: trunk)
17:14
Clean up some #includes in the extension API implementation. (Closed-Leaf check-in: b149ef5c user: drh tags: user-auth)
16:36
Suppress the potential schema error that occurs when a non-user-auth SQLite library tries to parse the sqlite_user table definition in a user-auth database. (check-in: cda33c1e user: drh tags: user-auth)
16:19
Enhance the sqlite3_user_add() interface to initialize the user authentication logic. Add test cases for the extra argument on the end of the authorizer callback. (check-in: 842c6da8 user: drh tags: user-auth)
15:25
All interfaces working and tested. (check-in: 96ea5c0b user: drh tags: user-auth)
14:56
Get the sqlite3_user_delete() interface working. (check-in: 974a9c65 user: drh tags: user-auth)
14:40
Fix the sqlite3_user_change() interface so that it does allow a non-admin user to change their own password. (check-in: 52d440c7 user: drh tags: user-auth)
14:01
Move user authentication blocking from sqlite3_prepare() over to the table lock generator, thus allowing SQL statements (like "PRAGMA locking_mode") that do not touch database content to run prior to authentication. (check-in: 70121e7c user: drh tags: user-auth)
13:44
Add support for the extra parameter on the sqlite3_set_authorizer() callback and support for failing an ATTACH with an authentication-required database using bad credentials. The extension is now feature complete, but much testing and bug-fixing remains. (check-in: 596e728b user: drh tags: user-auth)
00:27
Reorder parameters on the sqlite3_user_*() interfaces for consistency. Add the first TCL test cases. (check-in: 2f6d8f32 user: drh tags: user-auth)
2014-09-10
22:46
Complete the implementation of the various APIs. Fix several problems. This is another incremental check-in that does not completely work. (check-in: 4eaaa7fa user: drh tags: user-auth)
19:01
Add the ".user" shell command and implement the sqlite3_user_add() routine. Incremental check-in. The code compiles but does not work. (check-in: a0455f9d user: drh tags: user-auth)
17:34
Further ideas on user authentication. Not yet working code. (check-in: c8171ecd user: drh tags: user-auth)
2014-09-09
20:30
Change the name of the _texte64() interfaces to just _test64(), without the "e". (Closed-Leaf check-in: 6ab76c5f user: drh tags: 64-bit-lengths)
18:41
Add new interfaces to the loadable extension mechanism. (check-in: 18d80cbc user: drh tags: 64-bit-lengths)
17:27
Add new APIs that take 64-bit length parameters: sqlite3_malloc64(), sqlite3_realloc64(), sqlite3_bind_blob64(), sqlite3_bind_texte64(), sqlite3_result_blob64(), and sqlite3_result_texte64(). Internal memory allocation routines also now use 64-bit unsigned length parameters for safety. Also add the sqlite3_msize() interface. Fix the sqlite3_get_table() to use sqlite3_realloc64() to avoid a integer overflow problem. (check-in: 94954850 user: drh tags: 64-bit-lengths)
14:47
Non-working preliminary implementation attempts on user authentication. (check-in: 8440f093 user: drh tags: user-auth)
2014-09-06
17:06
Fixes to os_unix.c to support database (and other) files larger than 2GiB on Android. (check-in: ad7063aa user: dan tags: trunk)
16:52
Merge latest trunk changes with this branch. (Closed-Leaf check-in: 9dca7ce5 user: dan tags: android-large-filles)
16:49
Fixes to os_unix.c to support database (and other) files larger than 2GiB. (check-in: e7fae33c user: dan tags: android-large-filles)
16:39
Fix typos in comments. No code changes. (check-in: e62aab5e user: peter.d.reid tags: trunk)
03:38
Do not record a page-size change if the attempt to change the page size failed due to an OOM error. (check-in: 4d4fb197 user: drh tags: trunk)
03:16
Add the sqlite3_memdebug_title_count global variable, used during debugging to count the number of invocations of test_memdebug_settitle. By examining this variable in the debugger after a segfault, one can then set a breakpoint on test_memdebug_settitle that will fire just before the problem. (check-in: 27e3ca3e user: drh tags: trunk)
02:00
Fix a couple of typos in comments. No changes to code. (check-in: a758465e user: mistachkin tags: trunk)
01:35
Query planner heuristic update: When doing a full table scan on a table that has an equality constraint on an unindexed column, do not allow the estimated number of output rows to be greater than half the total number of rows in the table. (check-in: 73954f93 user: drh tags: trunk)
2014-09-05
05:58
Fix harmless compiler warning. (check-in: 73311906 user: mistachkin tags: trunk)
2014-09-01
23:06
Update comments in the ANALYZE command that describe how the Stat4Accum objecct is passed around within the VDBE. No changes to functional code. (check-in: 9779c7a9 user: drh tags: trunk)
22:34
Avoid a confusing (though correct) argument to the sqlite3_result_blob() function in the implementation of ANALYZE. (check-in: 4cae93f8 user: drh tags: trunk)
19:29
For sqlite3_win32_is_nt(), assume WinRT is NT-based and revise #ifdef ordering to prefer the ANSI version of GetVersionEx, when available. (check-in: be0a0372 user: mistachkin tags: trunk)
18:21
Tweak the documentation for SQLITE_LIMIT_WORKER_THREADS. No changes to executable code. (check-in: 672e7387 user: drh tags: trunk)
17:36
Add support for using separate worker threads to speed large sorts. The SQLITE_MAX_WORKER_THREADS and SQLITE_DEFAULT_WORKER_THREADS compile-time options and the SQLITE_LIMIT_WORKER_THREADS argument to sqlite3_limit() and the "PRAGMA threads=N" pragma are added. (check-in: b1c0f0bc user: drh tags: trunk)
13:37
Attempt to make the xDelete method of the unix VFS more robust on VxWorks. (check-in: b0f6b91f user: drh tags: trunk)
13:29
Micro-optimizations in sqlite3BtreeNext() and sqlite3BtreePrevious(). (check-in: 839c7996 user: drh tags: trunk)
01:16
Fix harmless compiler warnings for MSVC. (check-in: 3ef32461 user: mistachkin tags: trunk)
01:15
Merge updates from trunk. (check-in: 51f33cf1 user: mistachkin tags: asciiMode)
2014-08-30
15:49
In the command-line shell, added options --lookaside, --pagecache, and --scratch used to configure auxiliary memories. (check-in: f61db04b user: drh tags: trunk)
2014-08-29
19:06
Disable worker threads when SQLITE_THREADSAFE=0. Set the default compile-time maximum number of worker threads to 8 and honor the SQLITE_DEFAULT_WORKER_THREADS compile-time constant (which defaults to 0). (Closed-Leaf check-in: 33fa0410 user: drh tags: threads)
18:06
Fix the speedtest1.c test program to set the worker thread count using the threads pragma. (check-in: 2ab4b5ad user: drh tags: threads)
16:20
Add SQLITE_LIMIT_WORKER_THREADS for controlling the maximum number of worker threads. (check-in: 1b598c68 user: drh tags: threads)
14:40
Merge recent performance enhancements from trunk onto the threads branch. (check-in: 35c44a3c user: drh tags: threads)
14:20
Not a fault after all, rather a testing mistake. Move this change back to trunk. Was: Avoid an unnecessary OP_Move operation for expression subqueries. (check-in: 2a74129a user: drh tags: trunk)
12:29
Contains a fault. Was: Avoid an unnecessary OP_Move operation for expression subqueries. (Closed-Leaf check-in: 462f42af user: drh tags: mistake)
2014-08-28
19:38
Improved WHERETRACE messages for the estimated output row reductions from range scans. (check-in: fdd478bb user: drh tags: trunk)
17:30
Fix a problem causing an inaccurate stat4-based estimate for the number of rows visited by a range scan. (check-in: a9daf3ac user: drh tags: trunk)
17:20
Add a testcase() macro to help verfity the row estimation logic. (Closed-Leaf check-in: 6ba60952 user: drh tags: stat4-experimental)
16:01
Fix a problem causing an inaccurate stat4-based estimate for the number of rows visited by a range scan. (check-in: 052d89b5 user: dan tags: stat4-experimental)
13:42
Fix a formatting error ("%d" needed in place of "%g") on a WHERETRACE macro inside of the query planner. This fix applies to debugging logic only. (check-in: c931ca2b user: drh tags: trunk)
2014-08-27
23:18
Refactor the sqlite3PcacheFetch() routine into three separate routines, which are significantly faster overall and about 100 bytes smaller in size as well. (check-in: bdb6e497 user: drh tags: trunk)
17:53
Add a VDBE synopsis comment for clarification. (check-in: 029a6dc7 user: mistachkin tags: trunk)
17:48
Add a missing ticket number to a comment in index7.test. (check-in: d8b1c433 user: dan tags: trunk)
17:37
When determining whether or not a partial index is usable, do not assume that the cursor number assigned to each table in the query is the same as its index in the FROM clause. Fix for ticket [98d973b8f5]. (check-in: fcebca16 user: dan tags: trunk)
14:14
In the sqlite3_context object, keep a pointer to the result value rather than storing the result value in the sqlite3_context object and using memcpy() to move the value back into its register after the function returns. This runs faster and saves over 500 bytes of code space. (check-in: 6c1ee3e3 user: drh tags: trunk)
03:28
Factor out the exception paths from sqlite3ValueToText() into a separate function so that the main routine is much faster for the common case of no required type or encoding conversions. (check-in: 1624916c user: drh tags: trunk)
00:50
Performance enhancement in sqlite3VdbeMemNulTerminate(). (check-in: f94cacc3 user: drh tags: trunk)
2014-08-26
15:06
Change the page cache so that a new sqlite3_pcache object is allocated as soon as the page cache is opened, not delayed until the first fetch request. This give a noticable performance boost. The interface between pager and the page cache has changed slightly, which might break ZIPVFS. (check-in: f1f94a97 user: drh tags: trunk)
2014-08-25
23:44
Remove the SQLITE_CONFIG_WORKER_THREADS configuration parameter. The number of worker threads in the sorter is now determined only by the PRAGMA threads=N setting. (check-in: e3305d4b user: drh tags: threads)
22:43
Merge the CAST operator enhancements from trunk. (check-in: 6c8f86e4 user: drh tags: threads)
22:37
Add an assert() and five testcase() macros to the OP_Cast opcode implementation to help verify that it is fully tested. (check-in: af364cce user: drh tags: trunk)
21:11
Minor changes to the CAST logic to make it more testable. (check-in: 1ad70ec5 user: drh tags: trunk)
20:21
Test cases added for using unary "+" and CAST operators on the RHS of range constraints and verifying that STAT3/4 can use those constraints. (check-in: 42505e5a user: drh tags: trunk)
20:11
Allow CAST expressions and unary "+" operators to be used in the DEFAULT argument of an ALTER TABLE ADD COLUMN and to be understand on the RHS of range constraints interpreted by STAT3/4. This involves a rewrite of the implementation of the CAST operator. (check-in: 91d8a8d0 user: drh tags: trunk)
18:29
In cases where stat4 data is available but cannot be used because the rhs of a range constraint is too complex a expression, fall back to using the default estimates for number of rows scanned. (check-in: e06dc6f0 user: dan tags: trunk)
15:13
Query or change the maximum number of worker threads allowed on each database connection separately using the "PRAGMA threads" command. (check-in: 29c5e8a7 user: drh tags: threads)
13:27
Merge the recent performance enhancements implemented on trunk into the threads branch. (check-in: dfdc900f user: drh tags: threads)
11:33
Remove the pager_lookup() function since it is redundant with sqlite3PagerLookup(). (check-in: 54164ce4 user: drh tags: trunk)
11:20
Change the name of the VdbeMemRelease() macro to VdbeMemReleaseExtern() to more accurately reflect what it does. Performance enhancement to the sqlite3VdbeMemRelease() function. (check-in: 3ca5846d user: drh tags: trunk)
2014-08-24
02:53
The sqlite3VdbeChangeEncoding() routine goes about 3x faster if the sqlite3VdbeMemTranslate() subroutine is not inlined. (check-in: 0c7e1b87 user: drh tags: trunk)
01:32
Patch the sqlite3PagerWrite() method in the Pager to run a bit faster. (check-in: c63311e2 user: drh tags: trunk)
2014-08-23
23:15
Faster implementation of pcache1Fetch() (check-in: 0371cc3b user: drh tags: trunk)
20:25
Faster implementation of the sqlite3ApiExit() routine. (check-in: bd41d394 user: drh tags: trunk)
19:42
Another memory allocator performance optimization. (check-in: 6da6f46d user: drh tags: trunk)
19:08
Fix a variable-declaration after code problem in btree.c. Harmless in GCC and CLANG but unacceptable for MSVC. (check-in: 45abd5c0 user: drh tags: trunk)
19:04
Changes to sqlite3ScratchMalloc() that make the entire memory allocation interface a little faster and about 100 bytes smaller. (check-in: f83daa16 user: drh tags: trunk)
18:17
Make the implementation of the sqlite3_aggregate_context() interface faster for second an subsequent invocations. This helps all aggregate functions to perform better. (check-in: 802148f3 user: drh tags: trunk)
17:41
Improved performance in the type handling of arithmetic operators in the VDBE. (check-in: 0c0a6039 user: drh tags: trunk)
17:21
Performance optimization in the applyAffinity() logic inside the VDBE. (check-in: 25f2246b user: drh tags: trunk)
2014-08-22
23:33
Another performance tweak: Split the sqlite3BtreeCursorHasMoved() routine into two with the second routine named sqlite3BtreeCursorRestore(). The first now only reports whether or not the cursor has moved and the second tries to restore the cursor. This allows the sqlite3VdbeCursorMoveto() routine to be refactored to avoid stack pointer movements, for a noticable performance gain. (check-in: ce123b5c user: drh tags: trunk)
22:26
Factor the saveAllCursors() routine of btree.c into two separate routines, for a noticable performance improvement. (check-in: 3eb08439 user: drh tags: trunk)
21:58
Performance enhancements in the b-tree mutex logic. (check-in: 89145306 user: drh tags: trunk)
20:35
Combine the pcacheAddToDirtyList() and pcacheRemoveFromDirtyList() routines into a single pcacheManageDirtyList() routine. The resulting binary code is slightly faster and a few bytes smaller. (check-in: 6bcf1af6 user: drh tags: trunk)
19:12
Revise #ifdef ordering to prefer the ANSI version of GetVersionEx, when available. (Closed-Leaf check-in: 9fe0f075 user: mistachkin tags: winrt)
18:48
Performance enhancement in sqlite3PutVarint(). (check-in: a929be55 user: drh tags: trunk)
18:00
Split the sqlite3Error() routine into sqlite3Error() and sqlite3ErrorWithMsg(), for a slight size reduction and performance increase. (check-in: cf561d1f user: drh tags: trunk)
15:40
Performance improvement in the printf() logic by avoiding unnecessary stack pointer movement. (check-in: f7f2160d user: drh tags: trunk)
15:19
Improve the performance and reduce the size of the sqlite3VdbeSerialGet() routine by avoiding the use of stack. (check-in: ebc10e46 user: drh tags: trunk)
14:56
Handle the 4-byte integer case in the stackless routine. (Closed-Leaf check-in: 3f55484e user: drh tags: experimental)
14:34
Get the sqlite3VdbeSerialGet() routine to run faster by avoiding the use of local variables. (check-in: 8267d821 user: drh tags: experimental)
13:22
Change a while-loop into a do-loop in sqlite3VdbeSerialPut() for a small size reduction and performance improvement. (check-in: 750bb0a0 user: drh tags: trunk)
11:11
Enhance the spellfix extension with the ability to specify a rowid when inserting new rows. (check-in: 369c480c user: drh tags: trunk)
2014-08-21
20:26
Simplify the interface to the symbol table, saving 600 bytes of code space. (check-in: 14b0f561 user: drh tags: trunk)
19:11
For sqlite3_win32_is_nt(), assume WinRT is NT-based. (check-in: 2f59e71f user: mistachkin tags: winrt)
14:10
Fix a faulty assert() statement. Add comments to clarify the behavior of the sqlite3OpenTableAndIndices() routine in insert.c. Add test cases to verify that the assert() statement is not firing inappropriately. Ticket [369d57fb8e5ccdff06f1]. (check-in: 7029b340 user: drh tags: trunk)
2014-08-20
23:42
Increase the version number to 3.8.7 (check-in: 91594aae user: drh tags: trunk)
23:38
Enhancements to skip-scan such that it is operable when a middle column of an index is skipped while the left-most column is constrained in the WHERE clause. (check-in: bc985caa user: drh tags: trunk)
18:43
A small performance improvement in freeSpace() by special-casing the relatively common case of an empty freelist. (check-in: 49f44d35 user: drh tags: trunk)
17:56
Reimplement the freeSpace() routine in btree.c so that it runs faster. (check-in: fe4fd014 user: drh tags: trunk)
14:37
Refactor local variable names in the freeSpace() routine of btree.c for improved understandability. (check-in: 7e63089a user: drh tags: trunk)
13:35
Size reduction and performance improvements in btree.c and the allocateSpace() routine. Also fix an assert() in freeSpace(). (check-in: 121308fa user: drh tags: trunk)
13:25
Add SQLITE_API macros in front of interface routines in the test_intarray.c extension. (check-in: eea06617 user: drh tags: trunk)
13:17
Change an assert() added by the previous commit into a testcase(). Fix a separate assert() in btree.c:freeSpace(). (Closed-Leaf check-in: fe51d3aa user: drh tags: btree-speedup)
11:56
Further size reduction and performance improvement in btree.c:allocateSpace(). (check-in: 1cb1cd64 user: drh tags: btree-speedup)
10:42
Fix a typo in the showdb usage message. (check-in: 6c66beae user: dan tags: trunk)
00:54
Minor performance improvement and size reduction for the btree-page space allocator. (check-in: 73637d12 user: drh tags: trunk)
2014-08-19
23:04
Modify the memsubsys1-3.1.4 test so that it does not fail arbitrarily due to variations in the behavior of system malloc(). (check-in: d280157d user: drh tags: trunk)
20:41
A better fix for the sqlite3_trace() problem. Ticket [11d5aa455e0d98f3c1e6a] (check-in: 44d5bd4c user: drh tags: trunk)
20:27
Make sure the sqlite3_trace() callback is invoked, even if the prepared statement was marked "expired" before it ever entered sqlite3_step(). Ticket [11d5aa455e0d98f3c1e6a08]. (check-in: 0d4d3df4 user: drh tags: trunk)
19:28
Improvements to output formatting with the ".trace" command in the command-line shell. (check-in: d09d63c0 user: drh tags: trunk)
09:15
Minor changes to do with the Tcl tea extension package autoconf system. (check-in: f10a6111 user: dan tags: trunk)
2014-08-18
13:45
Refactor the names of state objects in the command-line shell implementation.. (check-in: 11a70e1a user: drh tags: trunk)
2014-08-15
16:13
Fix compiler warnings on WinCE. (check-in: 28a379fc user: drh tags: trunk)
15:46
Merge the 3.8.6 release into the threads branch. (check-in: 05807c41 user: drh tags: threads)
11:46
Version 3.8.6 (check-in: 9491ba7d user: drh tags: trunk, release, version-3.8.6)
2014-08-14
19:53
Fix an assert that can fail if the database file is corrupted. (check-in: 3f45b819 user: dan tags: trunk)
18:31
Fix compiler warnings on WinCE. (Closed-Leaf check-in: cc910b8e user: mistachkin tags: winCeWarn)
14:02
Merge the pre-3.8.6 changes into the threads branch. (check-in: a608fd1d user: drh tags: threads)
13:06
Fix typos in comments used to help generate documentation. No changes to code. (check-in: 13a2d90a user: drh tags: trunk)
02:59
Add icon to the Windows shell executable. This is a resource change only, no changes to code. (check-in: f5cce9db user: mistachkin tags: trunk)
2014-08-13
11:39
Minor change to unixDelete for VxWorks with a DOS filesystem. (check-in: f01d42cc user: drh tags: trunk)
2014-08-12
20:13
Fix where9.test so that it works with the "no_optimization" permutation. (check-in: d46adf9d user: dan tags: trunk)
16:13
Fix compilation issue in the Win32 VFS when manually defining SQLITE_WIN32_NO_ANSI. (check-in: 67159912 user: mistachkin tags: trunk)
14:29
Improve the comments associated with SQLITE_TEST_REALLOC_STRESS and add an extra assert() to prove an assumption. (check-in: 35c45461 user: drh tags: trunk)
14:06
Run a test with TEST_REALLOC_STRESS and OMIT_LOOKASIDE defined as part of releasetest.tcl on Linux/x86-64. (check-in: a1baf3a7 user: dan tags: trunk)
13:38
If SQLITE_TEST_REALLOC_STRESS is defined, extend the op-code array used by virtual-machine programs by one element at a time, instead of doubling its size with each realloc(). (check-in: 4c291827 user: dan tags: trunk)
12:19
Fix typos in the VxWorks code of os_unix.c. (check-in: 19682e8f user: drh tags: trunk)
09:36
Add a test to ensure that the problem fixed by [a179e41e40] does not recur. (check-in: 31356f2c user: dan tags: trunk)
01:23
Fix an assert() statement in the SELECT code generator that was incorrect following an OOM error. (check-in: a179e41e user: drh tags: trunk)
2014-08-11
17:51
Modify GetVersionEx Win32 VFS fix for use with the test suite. (check-in: fd222176 user: mistachkin tags: trunk)
17:41
Further clarification and typo fixes for the previous comment change. (check-in: 87ef9e2f user: drh tags: trunk)
17:40
Clarify the comment explaining the meaning of the SQLITE_WIN32_GETVERSIONEX macro in the Windows VFS. (check-in: 69714287 user: drh tags: trunk)
17:38
Fix for #ifdef issue with GetVersionEx in the Win32 VFS. (check-in: 1a0d466d user: mistachkin tags: trunk)
17:37
Add a few more requirements tests. (check-in: b5652439 user: drh tags: trunk)
15:54
Updates to evidence marks and requirements. No changes to code. (check-in: 62d38308 user: drh tags: trunk)
14:21
Fix harmless compiler warnings. (check-in: 52b03f04 user: drh tags: trunk)
13:53
Changes that will perhaps enable SQLite to work better on VxWorks. (check-in: de27c742 user: drh tags: trunk)
2014-08-08
18:26
Update requirements marks. No changes to code. (check-in: 7556bd9a user: drh tags: trunk)
17:49
Improvements to the way the query planner handles sorting costs, so that very large sorting costs do not overwhelm the loop costs. (check-in: bdaa6947 user: drh tags: trunk)
17:25
Fix a buffer overrun in the previous commit. (Closed-Leaf check-in: 43c59c85 user: dan tags: query-planner-fix)
16:52
Because SQLite internally calculates query plan costs using a logarithmic scale, very large estimated sorting costs can cause all other estimated costs to be rounded down to zero. In these cases break ties between plans with the same total cost by comparing the costs with sorting excluded. This is an alternative fix for the problem addressed by [2af630c572]. (check-in: 299b9570 user: dan tags: query-planner-fix)
15:38
The SQLITE_IOERR_BLOCKED extended error code is not longer used, so remove assert() statements and documentation for that error code. Also make other documentation improvements. (check-in: 36b7c5ce user: drh tags: trunk)
12:51
Reworking the documentation on integer result codes. This is a comment and documentation change only. There are no changes to code. (check-in: 54f1df7b user: drh tags: trunk)
2014-08-07
20:42
When the estimated sorting cost overwhelms the estimated lookup cost, ensure that lookup costs are still taken into account when selecting a lookup algorithm. (check-in: 2af630c5 user: drh tags: trunk)
20:37
Clarify the computation of compatible isOrdered by in the plan solver of the query planner. (Closed-Leaf check-in: b5e8fd57 user: drh tags: query-planner-fix)
20:25
Remove the extraneous debugging printf() from the previous check-in. (check-in: 8f04d2c0 user: drh tags: query-planner-fix)
16:50
Oops! This check-in was on trunk. But it contains a debugging printf(). Original comment: When the estimated cost to do a sort overwhelms the estimated cost to do individual table lookups, make sure that the table lookup costs are still taken into consideration when selecting the lookup algorithm. (check-in: ec5d84ba user: drh tags: query-planner-fix)
2014-08-06
18:50
A couple more harmless compiler warnings eliminated. (check-in: bcf6d775 user: drh tags: trunk)
17:49
Fix two more harmless compiler warnings. Make sure the fts3_unicode2.c file is in sync with mkunicode.tcl. (check-in: a2a60307 user: drh tags: trunk)
14:36
Fix harmless compiler warnings. In the command-line shell, report if the ".system" command returns a non-zero result. (check-in: 1202e977 user: drh tags: trunk)
11:58
Fix an obsolete comment in the func.c source file. No changes to code. (check-in: 5c6bb57d user: drh tags: trunk)
11:57
On the windows VFS, do not try to make InterlockedCompareExchange an overloadable function, since sometimes it is a macro. (check-in: ab1a751e user: drh tags: trunk)
11:49
Fix an obsolete comment in the func.c source file. No changes to code. (check-in: 7a145c94 user: drh tags: sessions)
03:06
In the Win32 VFS, work around InterlockedCompareExchange() being a macro on some platforms (e.g. x64). (check-in: 7be244ce user: mistachkin tags: trunk)
02:03
Merge all recent changes from trunk. (check-in: a353a851 user: drh tags: threads)
01:08
Fix typos in the opcode documentation. Comment changes only. No changes to code. (check-in: 717245d4 user: drh tags: trunk)
00:29
A simpler fix for ticket [3a88d85f36704eebe1] - one that uses less code. The error message is not quite as good, but as this error has apparently not previously occurred in over 8 years of heavy use, that is not seen as a serious problem. (check-in: 0ad1ed8e user: drh tags: trunk)
2014-08-05
21:31
Ensure that aggregate functions are not used when evaluating a default value for a table column. Candidate fix for ticket [3a88d85f36704eebe134f7]. (check-in: 29ba8128 user: drh tags: trunk)
19:16
Add the ability to evaluate IN operators as a sequence of comparisons as an alternative to the long-standing algorithm of building a lookup table. Use the new implementation in circumstances where it is likely to be faster, such as when the RHS of the IN changes between successive evaluations. (check-in: 95286821 user: drh tags: trunk)
11:04
Rename the internal Schema.flags field to Schema.schemaFlags. (check-in: 5ae80b3c user: drh tags: trunk)
00:53
Improved VdbeCoverage() macros. A few minor simplifications to generated VDBE code. (Closed-Leaf check-in: 01f60027 user: drh tags: IN-operator-improvements)
2014-08-04
21:26
Part of the change in the previous check-in was incorrect and can result in an incorrect UPDATE for WITHOUT ROWID tables. This check-in fixes the problem. (check-in: ee5f6eae user: drh tags: IN-operator-improvements)
18:50
Further enhancements to IN-operator processing. (check-in: 7fdf26da user: drh tags: IN-operator-improvements)
16:39
Refinements to the enhanced IN-operator logic. (check-in: 92ba2821 user: drh tags: IN-operator-improvements)
2014-08-02
21:03
Enhancements to the code generator for the IN operator that result in much faster queries in some cases, for example when the RHS of the IN operator changes for each row of a large table scan. (check-in: 436e8842 user: drh tags: IN-operator-improvements)
20:44
Remove (newly) incorrect preprocessor check to fix build on WinRT. (check-in: ba782654 user: mistachkin tags: trunk)
2014-08-01
21:12
A better comment on the generated code for the NULL-in-RHS-of-IN detection logic. (check-in: 9bc1c730 user: drh tags: trunk)
21:00
Improved detection and handling of NULL values on the RHS of a IN operator. (check-in: 468e7300 user: drh tags: trunk)
18:00
Remove an unnecessary OP_Null in the IN-operator logic. Attempt to clarify comments explaining the IN-operator code, though it is not clear that the comments are correct even yet - more work to be done. (check-in: c11e55fa user: drh tags: trunk)
15:51
Clean up the IN operator code generation logic to make it easier to reason about. In the process, improve code generation to omit some unused OP_Null operations. (check-in: 7c6fbcfe user: drh tags: trunk)
15:34
The idea of coding IN operator with a short list on the RHS as an OR expression turns out to be helpful. If the list is of length 1 or 2, the OR expression is very slightly faster, but the ephemeral table approach is clearly better for all list lengths greater than 2. Better to keep the code simple. (Closed-Leaf check-in: e13175d3 user: drh tags: IN-operator-improvements)
14:46
Begin making changes to the IN operator in an attempt to make it run faster and to make the code easier to understand. (check-in: ee0fd6aa user: drh tags: IN-operator-improvements)
01:40
Enhance the PRAGMA integrity_check command to detect UNIQUE and NOT NULL constraint violations. (check-in: 9abcf269 user: drh tags: trunk)
2014-07-31
22:59
Refactoring: Change "pIndex->onError!=OE_None" to use a macro: "IsUniqueIndex(pIndex)". Easier to understand that way. (check-in: e75b26ee user: drh tags: trunk)
20:16
Omit a pointless OP_Null when processing a value-list RHS of an IN operator where the LHS is a rowid. (check-in: 1361450a user: drh tags: trunk)
18:54
Optimizations to the OS sub-type checking in the Win32 VFS. (check-in: 1e5489fa user: mistachkin tags: trunk)
18:14
Add a missing call to "test_sqlite3_log" to multiplex.test. (check-in: 0708f9df user: dan tags: trunk)
17:35
Fix a leaked database handle in pager2.test. (check-in: 47457b04 user: dan tags: trunk)
15:44
Deactivate the DISTINCT in a SELECT on the right-hand side of an IN operator, since it should not make any difference in the output but dues consume extra memory and CPU time. (check-in: f4cb5365 user: drh tags: trunk)
2014-07-30
23:11
Re-integrate the recent changes from the 'winMutex' branch back into the Win32 mutex subsystem. (check-in: 5360ecb0 user: mistachkin tags: trunk)
21:10
Add three new static mutexes for use by the application. This is a partial import of changes from the threads branch. (check-in: 3aad0196 user: drh tags: trunk)
18:47
Add a new sqlite3FaultSim() call to vdbePmaReaderSeek() to facilitate tests of error handling in the sorter. (check-in: 655d8cfc user: drh tags: threads)
17:21
Mark some invariants in the vdbesort.c logic when SQLITE_MAX_WORKER_THREADS==0. (check-in: 721cd965 user: drh tags: threads)
15:43
Add the "eForce" parameter to the sqlite3_multiplex_shutdown() entry point in test_multiplex.c. Shutdown is forced if true. Shutdown is not done if there are pending database connections and eForce is false, but an error log entry is made instead. (check-in: c7303d01 user: drh tags: trunk)
14:44
Merge recent trunk changes, and especially the fix for the CREATE UNIQUE INDEX problem of ticket [9a6daf340df99ba9]. (check-in: 5b50a838 user: drh tags: threads)
13:56
Ensure that the correct number of columns in a UNIQUE index are checked for uniqueness, regardless of whether or not the original table has a ROWID or if the columns are NOT NULL, etc. Ticket [9a6daf340df99ba93c]. (check-in: 6b785e92 user: drh tags: trunk)
2014-07-29
21:44
Disable an assert that is sometimes generated spuriously. (check-in: bd9ee0ea user: mistachkin tags: threads)
19:54
Enhancements and updates to the Win32 mutex subsystem. (check-in: ca9868cd user: mistachkin tags: trunk)
19:00
Update return value checking to conform to the beginthreadex() specs. (check-in: 3144a16f user: mistachkin tags: threads)
18:53
Add a couple more assert statements. (check-in: 4e816db2 user: mistachkin tags: threads)
18:46
Fix unreachable branches in the threads.c module. (check-in: 3175e366 user: drh tags: threads)
18:03
Merge updates from trunk. (Closed-Leaf check-in: 08c9a4ea user: mistachkin tags: winMutex)
17:22
Fix a harmless compiler warning. (check-in: 216d21d0 user: drh tags: threads)
16:37
Make the Win32 thread handles are available after the threads exit. (check-in: 565c5af7 user: mistachkin tags: threads)
15:18
Fix the threads build on Windows when SQLITE_MAX_WORKER_THREADS is greater than 0. (check-in: f37db3a0 user: drh tags: threads)
14:16
Merge the R-Tree fix and the new SQLITE_TESTCTRL_ISINIT test control from trunk. (check-in: b2f7eb3c user: drh tags: threads)
14:09
Add the SQLITE_TESTCTRL_ISINIT file control. (check-in: 8b651d4d user: drh tags: trunk)
11:54
Have calls to the xFilter() method of rtree virtual tables ensure that cursor is initialized before proceeding. Fix for [d2889096e7bdeac]. (check-in: 8cc41b0b user: dan tags: trunk)
05:49
Enhancements and updates to the Win32 mutex subsystem. (check-in: 18984c32 user: mistachkin tags: winMutex)
00:42
Add some asserts to the Win32 mutex subsystem. (check-in: e8f2dc5f user: mistachkin tags: threads)
00:23
Fix the build on windows. (check-in: 2773a5f9 user: drh tags: threads)
2014-07-28
20:16
Remove an unnecessary parameter from vdbeMergeEngineStep(). Rename a couple other routines to be more descriptive of what they do. (check-in: f2407a40 user: drh tags: threads)
19:58
Rename vdbeIncrMergerInit() to vdbeMergeEngineInit() - a much more accurate name. (check-in: 5b084a2d user: drh tags: threads)
18:57
In vdbesort.c, rename vdbeSorterDoCompare() to vdbeMergeEngineCompare() and move it closer to the one place where it is called. Other minor comment changes. (check-in: 09d50d9f user: drh tags: threads)
17:18
In vdbesort.c, rename all pointers to sqlite3_file objects "pFd" and use the name "pFile" only for pointers to SortFile objects. Other comment enhancements. (check-in: 518290a7 user: drh tags: threads)
15:01
Merge recent trunk changes into the threads branch. (check-in: 163c247b user: drh tags: threads)
14:54
Improvements to comments in the multi-threaded sorter. Also include a function name change for clarity. And add a test to help show that the MergeEngine object is only used by a single thread. (check-in: 9af50a87 user: drh tags: threads)
2014-07-26
20:12
Remove an unreachable branch from the sqlite3_value_numeric_type() interface. (check-in: 5350229b user: drh tags: trunk)
16:47
Avoid unnecessary no-op calls to applyNumericAffinity() for a small performance improvement. (check-in: 413d7287 user: drh tags: trunk)
2014-07-25
21:35
Try to fix harmless compiler warnings reported by Fortify. (check-in: e0fa6fdc user: drh tags: trunk)
18:37
Improved comments on VDBE opcodes, for better documentation. No code or logic changes. (check-in: 2d32e487 user: drh tags: trunk)
18:01
Add constraints (enforced only when SQLITE_DEBUG is enabled) on the use of OP_Next and OP_Prev. (check-in: 2230c74f user: drh tags: trunk)
2014-07-24
23:23
Improve the performance of the ANALYZE command by taking advantage of UNIQUE constraints on indices. (check-in: 114dcf33 user: drh tags: trunk)
22:51
Correct help text and make consistent use of snprintf. (check-in: 9c424a5c user: mistachkin tags: asciiMode)
22:41
Fix a bug in the whereRangeSkipScanEst() procedure (added by check-in [d09ca6d5efad3e4cfa]) where it fails to consider the possibility of a ROWID column when computing the affinity of a table column. (check-in: 6aea2258 user: drh tags: trunk)
22:33
Update a shell test case. (check-in: b84008cb user: mistachkin tags: asciiMode)
22:20
Fix typo in comment and update help text. (check-in: 289092bb user: mistachkin tags: asciiMode)
22:13
Merge updates from trunk. (check-in: 8dc0cdf6 user: mistachkin tags: asciiMode)
20:25
Avoid trying to allocation zero bytes when analyzing a unique non-null index. (Closed-Leaf check-in: 85e2bade user: drh tags: faster-analyze)
19:54
Avoid change tests when analyzing single-column unique indexes after getting past the initial NULL entries. (check-in: 4690e99c user: drh tags: faster-analyze)
16:54
Merge all recent trunk changes into the threads branch. (check-in: 77068589 user: drh tags: threads)
12:39
Add the readfile(FILENAME) and writefile(FILENAME,CONTENT) SQL functions to the command-line shell. (check-in: fb1048cb user: drh tags: trunk)
12:19
Add support for hexadecimal integer literals in the parser. (check-in: f8f79f28 user: drh tags: trunk)
12:09
In the command-line shell, in CSV output mode, terminate rows with CRNL but do not expand NL characters in data into CRNL. Provide the extra -newline command-line option and the extra argument to .separator to designate an alternative newline character sequence for CSV output. (check-in: 16c8ce10 user: drh tags: trunk)
2014-07-23
23:57
Add experimental "costmult" logic. Only enabled when compiled with -DSQLITE_ENABLE_COSTMULT. (check-in: 729ece40 user: drh tags: trunk)
19:37
Ugh. Consecutive UNIQUE index entries are only distinct if the index is on NOT NULL columns. So the previous version was not quite right. This check-in fixes the problem. (check-in: 30033f96 user: drh tags: faster-analyze)
19:04
Enhancements to the hex literal tests. (Closed-Leaf check-in: a3cc027f user: mistachkin tags: hex-literal)
18:36
Improve the performance of the ANALYZE command by taking advantage of the fact that every row of a UNIQUE index is distinct. (check-in: 3e1e79e1 user: drh tags: faster-analyze)
15:51
Updated documentation on sqlite3_temp_directory. No changes to code. (check-in: e6225a7b user: drh tags: trunk)
14:52
Remove a surplus function prototype. #ifdef code that is not used when hex integers are omitted at compile time. (check-in: a5b383e0 user: drh tags: hex-literal)
13:40
Change the hex literal processing so that only the SQL parser understands hex literals. Casting and coercing string literals into numeric values does not understand hexadecimal integers. This preserves backwards compatibility. Also: Throw an error on any hex literal that is too big to fit into 64 bits. (check-in: 6c6f0de5 user: drh tags: hex-literal)
02:07
Casting hex literals directly from string to float always results in a positive number. (check-in: 4b86ccdf user: drh tags: hex-literal)
01:59
Reformatting a few test cases for clarity. (check-in: 7e1bbacb user: drh tags: hex-literal)
01:56
Test cases for hex literals. (check-in: 19054339 user: drh tags: hex-literal)
01:26
Add support for parsing C-style hexadecimal literals. (check-in: 34a1f38b user: drh tags: hex-literal)
2014-07-22
22:46
When running ANALYZE, it is not necessary to check the right-most key column for changes since that column will always change if none of the previous columns have. (check-in: 48f40861 user: drh tags: trunk)
20:02
Add the OP_ReopenIdx opcode that works like OP_OpenRead except that it becomes a no-op if the cursor is already open on the same index. Update the OR-optimization logic to make use of OP_ReopenIdx in order to avoid unnecessary cursor open requests sent to the B-Tree layer. (check-in: 77f412ca user: drh tags: trunk)
19:14
The optimization of check-in [b67a6e33f2] does not work (it generates incorrect VDBE code) if an OR term is AND-ed with a constant expression. So back that optimization out and add a test case to make sure it does not get added back in. (check-in: eed754fe user: drh tags: trunk)
16:00
Fix the index name for the shadow tables in the spellfix1 extension so that multiple instances of the spellfix1 virtual table can each have their own index. (check-in: 438c348a user: drh tags: trunk)
15:33
Correction: The maximum SQLITE_MAX_ATTACHED value to avoid overflowing a signed 8-bit integer is 125, not 127. (check-in: 48e37802 user: drh tags: trunk)
14:58
Enhance the sqlite_stat1.stat parsing to allow additional text parameters at the end. Unrecognized parameters are silently ignored. (check-in: ca2a5a2c user: drh tags: trunk)
14:42
Expire prepared statements after running ANALYZE. (check-in: b083a961 user: drh tags: trunk)
12:05
Enhance the comment on whereLoopAddBtree(). No changes to code. (check-in: b22dd165 user: drh tags: trunk)
00:40
For the OR-optimization, avoid generating OP_OpenRead opcodes that reopen exactly the same index. (check-in: b67a6e33 user: drh tags: trunk)
2014-07-21
20:07
Limit the maximum SQLITE_MAX_ATTACHED to 127, since a signed character is sometimes used to store the database index. (check-in: f1c76c7c user: drh tags: trunk)
15:44
Allow the SQLITE_MAX_ATTACHED compile-time option to be larger than 62. The default limit on the number of attached databases remains 10. (check-in: 1a817ae2 user: drh tags: trunk)
2014-07-19
20:15
Add new ASCII mode to the shell capable of importing and exporting using the official unit and record separators (i.e. 0x1F and 0x1E, respectively). (check-in: 7fe601ea user: mistachkin tags: asciiMode)
17:57
Update the sqlite3_stmt_busy() function so that it correctly returns true for "ROLLBACK" statements that have been stepped but not yet reset. (check-in: 61cee3c0 user: dan tags: trunk)
17:49
Fix harmless compiler warnings in the showdb and showwal tools and in the unicode tokenizer of FTS3. (check-in: 574cc8eb user: drh tags: trunk)
15:44
Fix some harmess compiler warnings in the FTS3 Unicode module. (Closed-Leaf check-in: c01caea5 user: mistachkin tags: toolWarnings)
15:40
Fix warnings related to having a 64-bit size_t. (check-in: 29ac9336 user: mistachkin tags: toolWarnings)
15:30
Fix warnings caused by the previous commit. (check-in: 89634a41 user: mistachkin tags: toolWarnings)
2014-07-18
21:16
Fix harmless compiler warnings for MSVC in the showdb/showwal command line tools. (check-in: 6dc7b2f1 user: mistachkin tags: toolWarnings)
21:02
Update clean targets with the recently added command-line tools. (check-in: 2beefa68 user: mistachkin tags: trunk)
19:06
Improved documentation for checkpoints and the busy handler. No changes to code. (check-in: ca92c024 user: drh tags: trunk)
17:39
SQLite has long accepted some unadvertised and non-standard join syntax. Add a test to ensure that future versions continue to accept this non-standard syntax, to avoid breaking legacy applications that use the undefined syntax. (check-in: 824dde7f user: drh tags: trunk)
14:43
Improvements to the ".fullschema" command in the command-line shell. (check-in: fa80c64c user: drh tags: trunk)
2014-07-07
18:03
Fix harmless compiler warnings in the fts3view utility program that can occur with MSVC. (check-in: 1cec1e03 user: mistachkin tags: trunk)
17:57
Add the fts3view utility program to the MSVC makefile. (check-in: b04751bd user: mistachkin tags: trunk)
16:07
Fix a division-by-zero error in the fts3view utility program. Add the fts3view utility program to the "main.mk" makefile. (check-in: 64f02699 user: drh tags: trunk)
2014-07-03
12:18
Change fts3/4 so that the "unicode61" is included in builds by default. It may now be excluded by defining SQLITE_DISABLE_FTS3_UNICODE. (check-in: 0cc0230a user: dan tags: trunk)
2014-07-01
15:22
Add another test to verify that SQLite is using stat4 data for composite primary keys on WITHOUT ROWID tables. (check-in: 0df1fe72 user: dan tags: trunk)
11:54
Ensure that all fields are loaded from the stat4 table for records that correspond to indexes on WITHOUT ROWID tables with composite primary keys. (check-in: 21981e35 user: dan tags: trunk)
2014-06-30
20:25
Merge the latest trunk changes into the threads branch. (check-in: ae23a65e user: drh tags: threads)
19:28
Bump the version number to 3.8.6. (check-in: f925e9ba user: drh tags: trunk)
19:07
Attempt to use STAT4 information to estimate the selectivity of WHERE clause terms when using the skip-scan optimization. (check-in: d09ca6d5 user: drh tags: trunk)
18:57
Fix for ticket [b2fa5424e6fcb15]: Better define the format of the sqlite_stat4 file for WITHOUT ROWID tables and make sure the ANALYZE command generates a file in the appropriate format. Use the sqlite_stat4 data to enable the use of WHERE terms that cover all indexed columns plus some prefix of columns in the primary key. (check-in: bc2de809 user: drh tags: trunk)
18:02
Fix a problem in where.c with using the stat4 sample data of an index on a WITHOUT ROWID table. (Closed-Leaf check-in: 053a210e user: dan tags: stat4-without-rowid)
17:07
Fix the STAT4 information for WITHOUT ROWID tables. (check-in: 5d8628fd user: drh tags: stat4-without-rowid)
15:23
Fix where.c so that the primary key values appended to every index entry on a WITHOUT ROWID table may be used when useful. (check-in: 6624a61d user: dan tags: stat4-without-rowid)
13:56
Omit non-primary-key columns from the STAT4 samples for WITHOUT ROWID tables. Indexes, both rowid and without-rowid, still hold an exact copy of the index entry. (check-in: de826c31 user: drh tags: stat4-without-rowid)
13:32
Generate complete samples for sqlite_stat4 on WITHOUT ROWID tables. Ticket [b2fa5424e6fcb15b5] (check-in: 8cb43edd user: drh tags: stat4-without-rowid)
11:14
Add makefile targets for various diagnostic tools, such as showstat4. Fix harmless compiler warnings in diagnostic tools. (check-in: 6f86d89b user: drh tags: trunk)
2014-06-28
19:06
Add an OOM fault injection test for the new code on this branch. (Closed-Leaf check-in: c96de490 user: dan tags: stat4-skipscan)
17:35
Add further tests to skipscan5.test. (check-in: 4b8230e8 user: dan tags: stat4-skipscan)
16:06
Add header comments on new routines. Rework the sqlite3Stat4Column() routine so that is (in theory) able to deal with corrupt samples. (check-in: ef5cdf94 user: drh tags: stat4-skipscan)
15:26
Fix a problem with using stat4 samples of type text when estimating the rows visited by a range-query/skip-scan loop. (check-in: dfb09db6 user: dan tags: stat4-skipscan)
14:28
Change the VDBE to export the sqlite3MemCompare() routine and thus free where.c from the dependency on vdbeInt.h. (check-in: d186d1ac user: drh tags: stat4-skipscan)
14:25
Merge fixes from trunk with this branch. (check-in: 6af219d1 user: dan tags: stat4-skipscan)
2014-06-27
20:14
Fix a couple of problems in estimating the number of rows visited by a range query that uses a skip-scan. (check-in: 219736f5 user: dan tags: stat4-skipscan)
2014-06-26
22:17
Add some more IN operator tests. (check-in: fb32e374 user: mistachkin tags: trunk)
21:32
Fix compilation issue when STAT4 is not enabled. (check-in: 74a5454a user: mistachkin tags: stat4-skipscan)
21:28
Revise the affinity returned for expressions flagged as 'generic'. Fix for [9a8b09f8e6]. (check-in: 92f7ad43 user: mistachkin tags: trunk)
20:21
Attempt to use sqlite_stat4 data to estimate the number of rows visited by a range query that uses a skip-scan. This code is largely untested. (check-in: 01dc8102 user: dan tags: stat4-skipscan)
2014-06-24
20:19
Fix showstat4.c so that it decodes typecodes 8 and 9 correctly. (check-in: 9ca737c0 user: drh tags: trunk)
00:59
Add the showstat4.exe utility program for decoding and displaying the content of the sqlite_stat4 table in a database. (check-in: b4d9f605 user: drh tags: trunk)
2014-06-23
23:28
Add the .fullschema command to the sqlite3.exe utility. This command shows the schema and the content of the sqlite_stat tables, all in one go. Useful when reporting problems with the query planner. (check-in: ebec4892 user: drh tags: trunk)
10:18
Fix a problem with SQLITE_OMIT_WSD builds. (check-in: 07dda49c user: dan tags: trunk)
10:04
Fix a problem with SQLITE_OMIT_WAL builds. (check-in: 612b6d1b user: dan tags: trunk)
2014-06-20
13:55
Improved display of record data in the "NNNbd" output of the showdb.exe utility program. (check-in: f735c249 user: drh tags: trunk)
01:32
In the showdb.exe utility, for the "NNNbd" command, also show data fields in addition to header fields on each record decoded. Improvements to formatting. (check-in: b451fe0c user: drh tags: trunk)
2014-06-19
23:38
Add the ability to decode the headers of individual cells, byte-by-byte, in the "showdb.exe" utility. (check-in: 306b461d user: drh tags: trunk)
2014-06-18
18:10
Add the "LogEst" and "LogEst.exe" target to the makefiles. (check-in: 7b91b058 user: drh tags: trunk)
15:24
Fix a comment on the sqlite3Utf8Read() routine. No changes to code. (check-in: 5e514f6a user: drh tags: trunk)
15:18
Merge in all recent changes from trunk, and especially the automatic index enhancements. (check-in: 0e1b7349 user: drh tags: threads)
15:11
Prevent an automatic index from taking the place of a declared index. (check-in: 0a52bddd user: drh tags: trunk)
2014-06-17
20:16
Prevent an automatic index from taking the place of a declared index. (Closed-Leaf check-in: 4ece839d user: drh tags: autoindex-improvements)
17:00
Fix a missing space in a "wheretrace" comment. No changes to production code. (check-in: b500f2a0 user: drh tags: trunk)
16:11
Add the likely() function for symmetry with unlikely(). The likely(X) function means the same thing as likelihood(X,0.9375). (check-in: 38965484 user: drh tags: trunk)
15:53
Improvements to query planning, especially in regards to estimating the cost and benefit of automatic indexes. (check-in: 1272fb89 user: drh tags: trunk)
13:23
Add the autoindex2.test testing module. (check-in: ffe3fea4 user: drh tags: autoindex-improvements)
12:33
A different approach to the autoindex problem that deletes query-planner code rather than adding it. (check-in: f270fb6e user: drh tags: autoindex-improvements)
09:52
Simplification to the logic that prevents automatic indexes from being formed on constant expressions. (check-in: 36d67e1d user: drh tags: autoindex-improvements)
09:00
Allow an automatic index on a WHERE constraint where the RHS is does not reference another table as long as the RHS is not a constant. (check-in: 58acc2a8 user: drh tags: autoindex-improvements)
02:46
Do not attempt to create an automatic index on a constant constraint, as doing so is pointless. (check-in: d6883e96 user: drh tags: autoindex-improvements)
2014-06-16
22:45
Fix CSV import issue, reported via the mailing list, in the shell when the file to be imported ends with an empty line. (check-in: fc918f7d user: mistachkin tags: trunk)
21:30
In the "wheretrace" logic (disabled for normal builds) expand the print width of the flags field to be wide enough for all 17 bits. (check-in: 3181d206 user: drh tags: trunk)
18:35
Add the SQLITE_UNLINK_AFTER_CLOSE compile-time option. If enabled, the unlink of temporary files on unix is deferred until after the file is closed. (check-in: e43a2f92 user: drh tags: trunk)
18:17
Add an application ID for MBTiles tilesets. (check-in: 837f6404 user: drh tags: trunk)
16:41
Back out the unix VFS changes that seeks to avoid fstat() calls after an unlink(). That change did not clear the problem on FuseFS. (check-in: 0617e20a user: drh tags: trunk)
15:01
Add the ".eqp" dot-command to the ".help" output in the command-line shell. This was accidently omitted when the ".eqp" command was originally implemented for SQLite 3.8.4 (check-in [e6ecf7337658624]). (check-in: b0b4c776 user: drh tags: trunk)
12:51
Fix the extension01.test script so that it works on windows. Fix a harmless compiler warning in the fileio extension. (check-in: baf95a19 user: drh tags: trunk)
12:44
Add test cases for the fileio extension. (check-in: 86343331 user: drh tags: trunk)
2014-06-13
13:43
Add the fileio.c loadable extension, that implements readfile() and writefile() SQL functions. (check-in: 0ca104d8 user: drh tags: trunk)
13:08
Add an extension that implements compress() and uncompress() SQL functions. (check-in: d5c17d1a user: drh tags: trunk)
2014-06-12
17:10
Increase the WAL-mode SQLITE_PROTOCOL timeout to 10 seconds. (check-in: 2aeacf81 user: drh tags: trunk)
15:46
Simplify the estLog() routine. (check-in: 6c68d758 user: drh tags: trunk)
2014-06-09
20:39
Avoid an unnecessary initialization of the szFile field of unixFile in the unix VFS. (check-in: 6484fb5a user: drh tags: trunk)
20:24
Enhance the unix VFS so that it keeps track of the size of unlinked files internally and thus avoids the need to call fstat() on those files, since fstat() does not work reliably on unlinked files on some implementations of FuseFS. (check-in: 10707d35 user: drh tags: trunk)
20:06
Enhance the unix VFS so that it keeps track of the size of unlinked files internally and thus avoids the need to call fstat() on those files, since fstat() does not work reliably on unlinked files on some implementations of FuseFS. (Closed-Leaf check-in: c41df393 user: drh tags: omit-fstat-after-unlink)
13:11
Modify the %nonassoc directive in lemon so that it generates a run-time error rather than a parsing conflict. This changes is due to a bug report on the mailing list. SQLite does not use the %nonassoc directive in its grammar so this change does not affect SQLite. (check-in: 1925f3a0 user: drh tags: trunk)
2014-06-06
20:49
Add a test case to ensure that estLog() works for negative numbers. (check-in: 813469d9 user: drh tags: trunk)
20:20
Make sure the estLog() routine in the query planner handles negative values correctly (always returning 1). Prior to this change, estLog(-1) would return a large number which could throw off the cost computations in the query planner in obscure circumstances. (check-in: 75437bee user: drh tags: trunk)
17:09
Fix an obsolete comment on the whereRangeScanEst() routine. No changes to code. (check-in: b16bf851 user: drh tags: trunk)
2014-06-05
13:22
Bring the threads branch up-to-date with the 3.8.5 release. (check-in: e4b01676 user: drh tags: threads)
11:15
Fix a problem that was causing the FTS4 integrity-check command to fail if the table had one or more "notindexed" columns. (check-in: 7123bb26 user: dan tags: trunk)
2014-06-04
14:06
Version 3.8.5 (check-in: b1ed4f2a user: drh tags: trunk, release, version-3.8.5)
2014-06-03
14:42
Avoid closing a pseudo-table associated with sorting in a co-routine since that pseudo-table might be used again in an outer loop. (check-in: 6d818052 user: drh tags: trunk)
11:32
Add a test to double-check that [1cbe7a0883] did not affect anything. (check-in: c6b512a7 user: dan tags: trunk)
2014-06-02
21:00
Remove the WHERE_LIKELIHOOD bit, as it does not seem to effect any result. (check-in: 1cbe7a08 user: drh tags: trunk)
18:24
Fix a typo in a requirements mark comment in a test script. No changes to code. (check-in: 75ff459b user: drh tags: trunk)
11:26
Fix the query planner so that it once again knows that queries without a FROM clause will never return more than one row and hence do not require sorting. (check-in: 9f18b303 user: drh tags: trunk)
09:39
Add the "valgrind-nolookaside" permutation to permutations.test. (check-in: 8e8472d9 user: dan tags: trunk)
2014-05-31
15:43
Fix a harmless "scan-build" compiler warning in the command-line shell. (check-in: 39fafe0a user: drh tags: trunk)
15:39
Fix a compile of harmless static analyzer warnings. (check-in: 7e287f20 user: drh tags: trunk)
2014-05-30
21:01
Revise locking retry semantics in Win32 VFS to abort early if the file handle is reported as invalid. (check-in: a4df4a5b user: mistachkin tags: trunk)
16:54
Add extra checking of the database extended error code. (Closed-Leaf check-in: f2906c44 user: mistachkin tags: winLockHandle)
16:42
Add tests for the invalid file handle detection logic in the winLock() function. (check-in: ed5a9eb4 user: mistachkin tags: winLockHandle)
2014-05-29
20:39
Fix a harmless compiler warning in the command-line shell code. (check-in: a80527f6 user: drh tags: trunk)
20:24
Merge changes from the trunk into the threads branch. (check-in: 416cb091 user: drh tags: threads)
20:17
Fix to the EXPLAIN indentation logic in the command-line shell. (check-in: 8f916ed1 user: drh tags: trunk)
12:36
Improvements to error messages for errors in the dot-commands of the command-line shell. Add the ".once" command. The output of ".help" now goes to the designated output channel. (check-in: 48dce821 user: drh tags: trunk)
03:17
Only quote the arguments to the ".shell" and ".system" commands if they contain spaces. (check-in: e58f4bd3 user: drh tags: trunk)
2014-05-28
20:22
Add the ".shell" and the ".system" commands (aliases for the same thing) to the command-line shell. (check-in: d018a34a user: drh tags: trunk)
10:00
Add an extra test to verify that the FTS notindexed option is working. (check-in: c461c0fe user: dan tags: trunk)
03:27
Revise locking retry semantics in Win32 VFS to abort early if the file handle is reported as invalid. (check-in: d43e2e59 user: mistachkin tags: winLockHandle)
03:23
Revise how OSTRACE reports logically boolean results in the Win32 VFS. (check-in: c405f971 user: mistachkin tags: trunk)
2014-05-27
20:19
Remove an incorrect assert() in the sorter. (check-in: b8b66103 user: drh tags: trunk)
19:18
Fix harmless compiler warnings. (check-in: 20b75460 user: drh tags: trunk)
18:18
Change the name of the Index.autoIndex field to Index.idxType and provide symbolic names for the various values of that field rather than using magic numbers. (check-in: d16e575d user: drh tags: trunk)
17:57
Avoid unnecessary cursor opens and seeks when running the OR-optimization on a WITHOUT ROWID table. (check-in: 9c785c58 user: drh tags: trunk)
16:41
Improved comments on the OR-optimization logic in the query planner. (check-in: 77fef5a3 user: drh tags: trunk)
15:21
Remove unused code (previously #ifdef-ed out) from btree.c. (check-in: 8bc97371 user: drh tags: trunk)
11:54
Fix a harmless compiler warning in the FTS4 logic. (check-in: 64a869ad user: drh tags: trunk)
11:42
Add a test to whereI.test that uses a multi-column PK. (check-in: aa183e60 user: dan tags: trunk)
10:57
Fix for (unsupported) SQLITE_USE_FCNTL_TRACE code. (check-in: 994b2b7a user: drh tags: trunk)
2014-05-26
22:05
Add the OR-optimization to WITHOUT ROWID tables. (check-in: 06a23b8b user: drh tags: trunk)
22:01
Minor enhancements to comments and clarification of the code. (Closed-Leaf check-in: cbec30d0 user: drh tags: without-rowid-or-opt)
20:25
Add a missing VdbeCoverage() macro on an OP_Found opcode added in the previous check-in. (check-in: b4980a07 user: drh tags: without-rowid-or-opt)
20:15
Merge recent trunk changes into the threads branch. (check-in: 82152027 user: drh tags: threads)
20:06
Enable the OR optimization for WITHOUT ROWID tables. Use a temp table instead of the RowSet object to track the rows that have already been included in the result set. (check-in: 2c7e277b user: dan tags: without-rowid-or-opt)
18:27
Fix a problem in the shell when importing CSV files. If the leftmost field of the first row in the CSV file was both zero bytes in size and unquoted, no data was imported. (check-in: 856d44a2 user: dan tags: trunk)
16:40
Fix a problem in FTS4 where columns with names that are prefixes of any notindexed column were also being (incorrectly) marked as not indexed. For example in "CREATE ... t1(abc, bc, abcd, notindexed=abcd)", both abc and abcd were being treated as notindexed. (check-in: d90c4964 user: dan tags: trunk)
2014-05-24
17:15
Remove references in comments to VDBE opcodes that no longer exist. This is a documentation change only; no changes to code. (check-in: ebfb51fe user: drh tags: trunk)
2014-05-23
17:17
Changes to the output of EXPLAIN QUERY PLAN to make it clearer when a query uses the PRIMARY KEY index of a WITHOUT ROWID table. (check-in: 9268df30 user: dan tags: trunk)
12:03
In the command-line shell, if three or more interrupt signals (control-c) are received in a row without a response from sqlite3_interrupt() then call exit(1) immediately. This allows control-C to interrupt the shell even if it is stuck in a computation or loop that does not involve the VDBE. (check-in: b5cde571 user: drh tags: trunk)
11:48
Make sure sufficient VDBE registers are allocated for an INSERT...SELECT when there is an idlist on the insert table that includes an explicit rowid. Ticket [e9654505cfda93610585fde5a9bbf2e730c8a8d5] (check-in: 9a2dd187 user: drh tags: trunk)
2014-05-22
09:58
Add a test for the EQP output of a skip-scan query that uses the PK index of a WITHOUT ROWID table. (check-in: 10238fad user: dan tags: trunk)
2014-05-21
08:48
Do not burn memory remembering CHECK constraints in a read-only database. (check-in: 34ddf02d user: drh tags: trunk)
08:21
Fix the sqlite3_db_readonly() API so that it reports true if the database is readonly because the file format write version (byte 18 of the header) is too large. (check-in: 8d8af114 user: drh tags: trunk)
2014-05-20
19:11
Improvements to the testability of the threads.c module. (check-in: 386e0888 user: drh tags: threads)
11:03
In vdbesort.c, change the names of PmaReader variables "pIter" to "pReadr". Other related comment changes. The generated object code should be the same. (check-in: 99efb235 user: drh tags: threads)
2014-05-19
23:17
Merge recent changes from trunk. (check-in: 6eefdad9 user: drh tags: threads)
2014-05-17
16:56
Internally, use a 64-bit integers for segment level numbers. (check-in: 8180e320 user: dan tags: trunk)
15:10
Fix a broken test case in fts4growth2.test. (check-in: 9fde5b96 user: dan tags: trunk)
2014-05-16
23:38
Fix harmless compiler warnings. (Closed-Leaf check-in: 7e60347e user: mistachkin tags: ftsWarnings)
23:15
Work around compilation issue with MSVC. (check-in: 9623a29c user: mistachkin tags: trunk)
20:24
Rearrange some conditionals and add #if statements to make the code more testable. (check-in: 17afd770 user: drh tags: threads)
17:31
Add a pair of sqlite3FaultSim(100) calls to vdbesort.c to facilitate testing of obscure and hard to reach error conditions. (check-in: cceac14f user: drh tags: threads)
16:16
Fixes to prevent an FTS index from growing indefinitely as the corresponding table is updated. Change the FTS 'automerge' option to allow the user to specify the number of segments that should be merged simultaneously by auto-merges. (check-in: a75f1800 user: dan tags: trunk)
15:48
Add extra test to backcompat.test to ensure that old and new versions of FTS may work together on the same incremental merge operation. (Closed-Leaf check-in: 3997d47b user: dan tags: fts4-experimental)
14:27
Merge all recent changes from trunk, and especially the new sqlite3FaultSim() interface. (check-in: 43fcbd91 user: drh tags: threads)
14:17
Repurpose the SQLITE_TESTCTRL_FAULT_INSTALL test-control to register a callback to be invoked by sqlite3FaultSim(). That test-control has been unused since 2008-06-20 and was never used in any official release. (check-in: 0d43a7ad user: drh tags: trunk)
12:18
Use #ifdef logic to avoid an always-true branch when SQLITE_MAX_WORKER_THREADS=0 (check-in: 88cfe6d7 user: drh tags: threads)
10:30
Fix a bug causing an incorrect segment size value to be stored if both an old and new FTS version performed work on the same incremental merge operation. (check-in: a9a2aeab user: dan tags: fts4-experimental)
2014-05-15
19:05
Merge latest trunk changes with this branch. (check-in: 5809986f user: dan tags: fts4-experimental)
18:36
Fix a problem with the handling of delete markers by automerge on large databases. (check-in: 2b09bd17 user: dan tags: fts4-experimental)
16:56
Use #ifdef to omit code that is not used when SQLITE_MAX_WORKER_THREADS is zero. (check-in: 2e8d287d user: drh tags: threads)
2014-05-14
19:49
Do not search for promotable segments following an FTS 'optimize' operation or creation of a new segment on the oldest existing level. (check-in: 34f6b4b8 user: dan tags: fts4-experimental)
18:45
Fix a problem to do with loading the value of the FTS automerge setting from the database. (check-in: 7268119f user: dan tags: fts4-experimental)
15:58
Fix various problems to do with segment promotion. Add test file fts4growth2.test, containing tests to check that the FTS index does not grow indefinitely as the table is updated. Allow the user to configure the number of segments merged simultaneously by the automerge option. (check-in: 21491a9b user: dan tags: fts4-experimental)
2014-05-13
20:11
Fix a problem preventing delete markers from ever being removed from the FTS index. (check-in: 7f47ae5c user: dan tags: fts4-experimental)
2014-05-12
22:36
Improve a comment in the MSVC makefile. No changes to code. (check-in: 0901dcce user: mistachkin tags: trunk)
21:12
Add VSIX packaging support for Windows Phone 8.1 using Visual Studio 2013 Update 2. (check-in: 013738f3 user: mistachkin tags: trunk)
20:04
Experimental code to prevent FTS indexes from growing indefinitely as the table is updated. (check-in: b3b505a4 user: dan tags: fts4-experimental)
15:37
In mutex_w32.c, make inclusion of the Windows header file dependent on SQLITE_OS_WIN, not SQLITE_MUTEX_W32. (check-in: 93ffbcc0 user: mistachkin tags: trunk)
15:30
In the sorter, only use large memory allocations if scratch memory has not been configured. Add #ifdefs to disable unused code when SQLITE_MAX_WORKER_THREADS is zero. Other sorter changes in support of testability. (check-in: d7e2b0d9 user: drh tags: threads)
2014-05-10
17:33
Merge updates from trunk. Emit the AppliesTo and DependsOn SDK manifest attributes when building the VSIX for Windows Phone 8.1. (Closed-Leaf check-in: f6237a5f user: mistachkin tags: vsixWinPhone81)
17:28
When using Visual Studio 2013, add the appropriate MaxPlatformVersion attribute to the VSIX SDK manifest. (check-in: 0a4f5967 user: mistachkin tags: trunk)
2014-05-09
23:31
Further MSVC makefile changes to support Windows Phone 8.1. (check-in: a9c81815 user: mistachkin tags: vsixWinPhone81)
20:54
Merge updates from trunk. (check-in: f4fea7bb user: mistachkin tags: vsixWinPhone81)
20:51
When cross-compiling with the MSVC makefile, make sure the correct library path is used. Also, keep track of the required compilation options separately. (check-in: c3dce2e7 user: mistachkin tags: trunk)
15:00
Merge the latest trunk changes into the threads branch. (check-in: 9ac8f1e7 user: dan tags: threads)
11:15
Add new static mutex SQLITE_MUTEX_STATIC_APP3. (check-in: ee0ab09c user: dan tags: threads)
2014-05-08
22:01
Fix static variable declaration issue on Windows. (check-in: a41d2969 user: mistachkin tags: threads)
2014-05-07
21:16
Include sqlite3rtree.h in the tsrc/ pile of source files during target_source in the main.mk makefile. (check-in: 116bed5a user: drh tags: trunk)
20:33
Remove a superfluous variable initialization. (check-in: 68766f83 user: drh tags: trunk)
20:24
A better fix for the group_concat() problem. (check-in: 1c086dee user: drh tags: trunk)
19:59
Fix the way parenthesis in MATCH expressions are handled by FTS if the tokenizer considers them to be token characters. (check-in: e21bf7a2 user: dan tags: trunk)
18:23
Make sure the group_concat() function returns an empty string, not a NULL, if it has at least one input row. Fix for ticket [55746f9e65f8587]. (check-in: d01cedaa user: drh tags: trunk)
18:21
Ensure that the sqlite3StrAccumAppend() routine is never called with a NULL second argument. Doing so is harmless when N==0, but it causes an assert() to fail that was placed to quiet static analyzers. (Closed-Leaf check-in: f03fbf37 user: drh tags: tkt-55746f9e)
17:19
Make sure the group_concat() function returns an empty string, not a NULL, if it has at least one input row. Fix for ticket [55746f9e65f8587]. (check-in: 0deac873 user: drh tags: tkt-55746f9e)
15:46
Add the SQLITE_IOCAP_IMMUTABLE bit as a possible return value from the xDeviceCharacteristics method in the VFS. Add the "nolock" and "immutable" query parameters to URI filenames. (check-in: 1a0d7d3d user: drh tags: trunk)
15:32
Fix nolock and immutable so that they work even if READONLY is requested. (Closed-Leaf check-in: e193aced user: drh tags: win32-none)
15:09
Add test cases and documentation for the nolock and immutable query parameters. (check-in: 19d56cba user: drh tags: win32-none)
2014-05-06
21:37
Merge updates from trunk. (check-in: 69698ae9 user: mistachkin tags: vsixWinPhone81)
21:37
Update the template VSIX package file as well. (check-in: 99d96765 user: mistachkin tags: trunk)
21:30
Merge updates from trunk. (check-in: 7579c44a user: mistachkin tags: vsixWinPhone81)
21:26
Enhance the VSIX package creation tool to better support Visual Studio 2013. (check-in: c1fb04f6 user: mistachkin tags: trunk)
16:21
Add a little extra variety to the tests in sort4.test. (check-in: 7de6aee6 user: dan tags: threads)
15:38
Re-implement the core of the multi-threaded sorter tests in sort4.test using C. Run each test in sort4.test ten times, or repeat all tests for 300 seconds as part of the "multithread" permutation test. (check-in: 208b2b04 user: dan tags: threads)
00:09
Refactor VSIX package creation tool to better support Visual Studio 2013. (check-in: 8be166af user: mistachkin tags: vsixWinPhone81)
2014-05-05
22:50
Merge updates from trunk. (check-in: 668ed76a user: mistachkin tags: vsixWinPhone81)
22:43
When building for Windows 8.0 using Visual Studio 2013, make sure the cross-compilation native library path is set correctly. (check-in: c1ab9092 user: mistachkin tags: trunk)
21:08
More modularization work on the MSVC batch build tool. (check-in: 9a06773a user: mistachkin tags: trunk)
20:35
Merge updates from trunk. (check-in: eaa8fc81 user: mistachkin tags: vsixWinPhone81)
20:32
Create new header file "os_setup.h" used to detect the operating system at compile-time, and "os_win.h" that contains windows-specific header in formation. (check-in: bd92e0f8 user: drh tags: trunk)
20:24
Work on cleaning up the MSVC batch build tool integration with Visual Studio 2013. (check-in: b5a72dfd user: mistachkin tags: trunk)
20:21
Attempt to fix the build on beagleboard. (Closed-Leaf check-in: 3ac75725 user: drh tags: winHdr)
20:03
Add test file sort4.test, containing brute force tests for the multi-theaded sorter. (check-in: 9cc364c4 user: dan tags: threads)
18:24
Centralize and reform use of the Win32 related include files. (check-in: 857f2baf user: mistachkin tags: winHdr)
17:49
Merge updates from trunk. (check-in: 6f07f20e user: mistachkin tags: vsixWinPhone81)
17:45
Merge updates from trunk. (check-in: a3cfd813 user: mistachkin tags: winHdr)
17:43
Fix several header file comments. No changes to code. (check-in: dd6eb5d1 user: mistachkin tags: winHdr)
15:58
Fix a race condition in the sorter code. (check-in: 2d2edfe5 user: dan tags: threads)
09:08
Add tests so that the "coverage-sorter" test permutation covers all branches in vdbesort.c. Fix a few minor problems in the same file. (check-in: bde28b70 user: dan tags: threads)
2014-05-03
20:43
Add an extra fault-injection test to sortfault.test. Remove an unreachable branch from vdbesort.c. (check-in: a33a366b user: dan tags: threads)
19:33
Fix a race condition in the sorter. (check-in: 32ccf3ae user: dan tags: threads)
14:28
Fix a problem in the sorter causing it to return spurious SQLITE_NOMEM errors when configured to use memsys3 or memsys5. (check-in: 3a66c4e1 user: dan tags: threads)
13:53
Get SQLITE_MUTEX_STATIC_APP1 and _APP2 working for the debugMutex implementation. (check-in: f49ba1c9 user: drh tags: threads)
12:00
Add two new static mutexes, SQLITE_MUTEX_STATIC_APP1 and _APP2, for use by the application program. First intended use is in test programs for the memory allocation logic where one does not want to allocating a _FAST or _RECURSIVE mutex since that would involve using the memory allocation system under test. (check-in: 13686035 user: drh tags: threads)
11:22
Add the SQLITE_DEFAULT_WORKER_THREADS compile-time option. Fix a NULL-pointer dereference that can occur following OOM. (check-in: e0dea89b user: drh tags: threads)
2014-05-02
22:39
Enhance the Win32 VFS I/O retry logic. (check-in: 47605043 user: mistachkin tags: trunk)
21:42
Merge updates from trunk. (Closed-Leaf check-in: 598a3875 user: mistachkin tags: winIoRetry)
21:38
Merge updates from trunk. (check-in: c4d1d8a0 user: mistachkin tags: winHdr)
19:12
Fix typo in Windows makefile. Make sure the WaitForSingleObjectEx system call is always available. (check-in: d7ed529f user: mistachkin tags: threads)
18:46
Do not run the vdbeRecordCompareDebug() assert if pKeyInfo->db is NULL since in that case there would be no way to check for a memory allocation failure. (check-in: 63ed2d6a user: drh tags: threads)
18:05
Merge orderby-planning with this branch. (check-in: d9549de3 user: dan tags: threads)
17:33
Simplify assert() statements used to verify correct operation of record comparison routines. (check-in: 3300d62d user: drh tags: orderby-planning)
17:12
Fix some broken asserts in btree.c and vdbeaux.c that may fail following an OOM error. (check-in: e15f4706 user: dan tags: threads)
16:22
Failure to extend a temp file for use with mmap() in vdbesort.c is benign. (check-in: d4d39638 user: drh tags: orderby-planning)
16:03
Remove a faulty assert() from vdbesort.c. (check-in: d95d68aa user: dan tags: threads)
15:25
Fix a faulty assert() statement. (check-in: 9196ce40 user: drh tags: orderby-planning)
14:54
Fix a broken test case in fuzz.test. (check-in: faa46935 user: dan tags: trunk)
13:09
Merge latest trunk enhancements and fixes into the orderby-planning branch. (check-in: 84862d3a user: drh tags: orderby-planning)
00:09
Add a comment explaining why WhereLoop cost adjustments are omitted for skip-scan loops. (check-in: 3bc43594 user: drh tags: trunk)
2014-05-01
20:26
Fix an obscure problem to do with temp register allocation that could occur if more than one simple SELECT within a compound SELECT uses a partial sort. (check-in: 427409ae user: dan tags: trunk)
20:24
Add #ifdefs for test coverage. Add a testcase(). (check-in: be2702ce user: drh tags: trunk)
10:19
Update a test case in wal2.test that explicitly corrupts a checksum in the wal file to account for the fact that the first byte of said checksum may initially be 0xFF. (check-in: 2b935bde user: dan tags: trunk)
01:49
Take out the special handling of nolock=true in os_win.c and add it to pager.c, so that it works for all VFSes. Add the pPager->noLock boolean for clarity. (check-in: 725c1c14 user: drh tags: win32-none)
01:20
Avoid unnecessary xUnlock operations on temp file. (check-in: 1829c38c user: drh tags: win32-none)
01:13
Add the immutable=TRUE query parameter and SQLITE_IOCAP_IMMUTABLE, either of which prevents locking of the database and omits tests for existance of journal files. (check-in: 71f152c8 user: drh tags: win32-none)
2014-04-30
20:32
Merge in all recent changes and enhancements from trunk. (check-in: 84243f84 user: drh tags: win32-none)
18:11
Fix a problem in calculating the costs of "OR" scans. (check-in: 9bbca48b user: dan tags: trunk)
15:22
Modify the way the costs of various query plans are estimated. If the user supplies a likelihood() value (or equivalent) on an indexed WHERE constraint, use it to estimate the number of index rows visited. (check-in: 90e36676 user: dan tags: trunk)
15:00
Add text to the header comment of whereLoopAddBtree() describing how the costs of various b-tree loops are estimated. (Closed-Leaf check-in: 05e6e16c user: dan tags: experimental-costs)
14:53
Update a couple of test cases to account for the fact that this branch prefers an index scan and partial sort over a full-table scan and full external sort. (check-in: 9b975bf3 user: dan tags: experimental-costs)
14:47
Fix a couple of out-of-date comments in where.c. (check-in: eefeda32 user: dan tags: experimental-costs)
14:22
Improved rendering of LogEst values corresponding to real values near 0.0 in the tool/logest.c utility program. (check-in: 32910c8c user: drh tags: experimental-costs)
13:19
Fix long-standing typos in comments. (check-in: b9f91317 user: drh tags: experimental-costs)
2014-04-29
19:01
Test that the default values used when sqlite_stat1 data is not available are calculated correctly. Fixes for the same. (check-in: e2d42f90 user: dan tags: experimental-costs)
16:46
Merge trunk changes into this branch. (check-in: d74299f0 user: dan tags: experimental-costs)
16:10
Ignore likelihood() values on indexed IPK lookups. (check-in: 5bb7757a user: dan tags: experimental-costs)
12:01
Fix a test case so that it updates sqlite_stat1 consistently. (check-in: 2dc5a0b5 user: dan tags: experimental-costs)
2014-04-28
20:11
Do not reduce the number of rows scanned at all for "IS NOT NULL" constraints. Fix a bug in calculating the number of rows visited by scans of partial indicies. (check-in: a8ae93f0 user: dan tags: experimental-costs)
19:34
The trunk assumes that an open range constraint on an indexed term (col>?) term matches 1/4 of the indexed rows, and that a closed constraint (col BETWEEN ? AND ?) matches 1/64. Change this branch to do the same. (check-in: 4047ac75 user: dan tags: experimental-costs)
17:56
Add the sqlite3_rtree_query_callback() API to the RTree virtual table. (Cherrypick from the sessions branch.) (check-in: af2cbe64 user: drh tags: trunk)
17:51
Add the sqlite3_rtree_query_callback() API to the RTree virtual table. (check-in: 3dca2809 user: drh tags: sessions)
15:11
Update unordered.test to take into account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. (check-in: 20f468df user: dan tags: experimental-costs)
12:08
Add an extra column to a table in analyze9.test to give the planner a little more reason to select an index. (check-in: 1b95544f user: dan tags: experimental-costs)
10:00
Update test script analyze3.test to account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. (check-in: 35f46a55 user: dan tags: experimental-costs)
09:35
Modify internal function whereLoopAdjustCost() so that it does not prefer a skip-scan over a regular index scan even if the regular scan uses a subset of the WHERE terms used by the skip-scan. (check-in: 88a5758d user: dan tags: experimental-costs)
08:49
Fix an error in estimating of the number of rows visited by a range scan. (check-in: d491de62 user: dan tags: experimental-costs)
2014-04-26
20:21
Fix an sqlite3_stmt_status() problem caused by recent changs on this branch. (check-in: dee20409 user: dan tags: experimental-costs)
19:23
Update requirements marks to fix typos in the requirements text. No changes to code. (check-in: f5a26365 user: drh tags: trunk)
17:52
Allow the xfer optimization to proceed if the DEFAULT on the very first column of the two tables is different. This is a refinement of the fix for ticket [f67b41381a]. (check-in: 349f4834 user: drh tags: trunk)
14:07
Avoid transfering records between tables unless the default values for all columns are the same. Fix for [f67b41381a]. (check-in: f8c4c495 user: dan tags: trunk)
2014-04-25
20:22
If the user provides likelihood() data for a WHERE clause term used as part of an index key, have the planner use it when calculating the expected number of rows visited by the loop. (check-in: c51efaa5 user: dan tags: experimental-costs)
17:37
Add test cases to ensure correct operation of joins with a virtual table that include DISTINCT and ORDER BY clauses. Verification for ticket [388d01d4bb8f9]. (check-in: 5ada136f user: drh tags: trunk)
15:01
Store values loaded from the stat1 table as logarithmic values in memory. (check-in: 1bd74c49 user: dan tags: experimental-costs)
14:42
Make sure ORDER BY clauses on joins that involve virtual tables and that have a DISTINCT clause work correctly. This is a candidate fix for ticket [388d01d4bb8f9]. Test cases for that ticket will be checked in separately. (check-in: 17113812 user: drh tags: trunk)
12:35
When VDBE_PROFILE is enabled, ignore negative opcode times, which sometimes occur, perhaps due to context swaps. (check-in: 4e88042f user: drh tags: trunk)
2014-04-24
20:04
Changes to the way the planner calculates the costs of various table and index scans. Some test cases still failing. (check-in: c5a6ec0a user: dan tags: experimental-costs)
16:25
Improved header comment on the vdbesort.c module. No changes to code. (check-in: bf09ce24 user: drh tags: orderby-planning)
15:06
Reopen the orderby-planning branch and merge in the latest trunk enhancements and fixes. (check-in: 6077ddcd user: drh tags: orderby-planning)
12:28
Improvements to comments. Store some extra information in SqliteThread that is useful for debugging. (check-in: 9fb5e212 user: drh tags: threads)
2014-04-23
12:57
Merge all recent trunk changes into the threads branch. (check-in: e2c9f71a user: drh tags: threads)
2014-04-22
19:42
Change from using the win32-none VFS to just a query parameter. (check-in: ffceacf6 user: drh tags: win32-none)
19:34
Add some OSTRACE calls for consistency. (check-in: be292d55 user: mistachkin tags: win32-none)
19:30
Add the win32-none VFS which omits rollback-journal locking. (check-in: 03e3c5a8 user: drh tags: win32-none)
2014-04-21
18:00
Preliminary changes to support building VSIX packages for Windows 8.0 and Windows Phone 8.0 using Visual Studio 2013. (check-in: 3bf97c81 user: mistachkin tags: vsixWinPhone81)
13:36
Comment tweaks on the test case for the [b75a9ca6b0] bug fix. (check-in: 65d2544a user: drh tags: trunk)
13:21
Avoid discarding an ORDER BY clause in the case where an identical GROUP BY clauses uses an index to group, but not sort, the rows. Fix for [b75a9ca6b0]. (check-in: de9a490f user: dan tags: trunk)
2014-04-18
22:20
Clean up the proper-subset cost adjustment logic to make it more compact and easier to read and so that full branch test coverage is more easily obtained. (check-in: 9a5d38c7 user: drh tags: trunk)
13:57
Add to speedtest1.c the --threads option for setting the SQLITE_CONFIG_WORKER_THREADS configuration. (check-in: 5fce40c4 user: drh tags: threads)
13:40
Fix harmless compiler warnings. (check-in: f8f72ecb user: drh tags: threads)
12:38
Merge recent trunk changes into the threads branch. (check-in: 8729aa3e user: drh tags: threads)
00:49
Add the SQLITE_RUNTIME_BYTEORDER compile-time option to force SQLite to check the processor byte-order at run-time. Add additional compile-time byte order checks for ARM, PPC, and SPARC. (check-in: 2c536387 user: drh tags: trunk)
00:08
Preliminary changes to support building VSIX packages for Windows Phone 8.1. (check-in: a1b2f28b user: mistachkin tags: vsixWinPhone81)
00:06
Add the SQLITE_TESTCTRL_BYTEORDER test control to interrogate SQLite's notion of the processor byte order and whether the byte order is known at compile-time or determined at run-time. (check-in: 9c696196 user: drh tags: trunk)
2014-04-17
08:57
Fix build problems in vdbesort.c. Add further comments and changes to make things easier to understand. (check-in: 12b190db user: dan tags: threads)
2014-04-16
19:04
Clarify the purpose of the nField argument passed to sqlite3VdbeSorterInit(). (check-in: c0c8cff1 user: dan tags: threads)
17:41
Change the name of vdbeIncrInit2 to vdbePmaReaderIncrInit. Add a header comment to the same function. (check-in: 6622d876 user: dan tags: threads)
16:43
Rework the way trees of MergeEngine objects are built in vdbesort.c to make it easier to follow. Fix memory leaks that could follow an OOM or IO error. Add various comments to explain functions in vdbesort.c. (check-in: 69026ec7 user: dan tags: threads)
2014-04-15
20:52
Fix some problems to do with OOM conditions in vdbesort.c. Some problems remain. (check-in: 2f94f9ce user: dan tags: threads)
19:52
Fix further code and documentation issues in vdbesort.c. (check-in: d03f5b86 user: dan tags: threads)
2014-04-14
19:48
Make sure the undocumented sqlite_rename_parent() function does not crash even if it is invoked with NULL arguments. Ticket [264b970c4379fd4b94] (check-in: c6fa8d0d user: drh tags: trunk)
19:23
Allow the sorter to begin returning data to the VDBE as soon as it is available, instead of waiting until all keys have been sorted. (check-in: cb0ab20c user: dan tags: threads)
18:41
Improve performance in single-threaded mode by having the final merge pass keys directly to the VDBE, instead of going via a final PMA. (Closed-Leaf check-in: 02610cd9 user: dan tags: threads-experimental)
08:45
Minor fixes so that builds with SQLITE_MAX_WORKER_THREADS=0 work. (check-in: e400bbbf user: dan tags: threads-experimental)
07:30
Improve use of multiple threads in sqlite3VdbeSorterRewind(). (check-in: e1bdc4b8 user: dan tags: threads-experimental)
2014-04-13
19:28
Remove the unused second argument from sqlite3ExprCachePop(). Add an ALWAYS() on an always-true conditional in sqlite3VdbeResolveLabel(). (check-in: ab23abf3 user: drh tags: trunk)
19:15
Make sure column cache elements are cleared correctly when jumping over code for key generation in a partial index. Fix for ticket [2ea3e9fe6379fc3f6]. (check-in: 3122b836 user: drh tags: trunk)
2014-04-12
19:34
Fix many issues with new code. (check-in: 62c406a0 user: dan tags: threads-experimental)
2014-04-11
19:43
Avoid having the sorter merge too many PMAs at a time when incrementally merging data following a SorterRewind(). (check-in: 98bf0307 user: dan tags: threads-experimental)
2014-04-10
02:24
Modify the OR-clause handling so that it can safely deal with OR-clause with 17 or more terms. Fix for ticket [10fb063b1179be53ea0b53bb]. (check-in: a67b5312 user: drh tags: trunk)
2014-04-09
20:04
Experimental multi-threaded sorting changes to allow the sorter to begin returning items to the VDBE before all data is sorted. (check-in: f9d5e09a user: dan tags: threads-experimental)
2014-04-04
22:44
Fix harmless compiler warnings. (check-in: e54dded2 user: drh tags: threads)
21:40
Fix typo in a Windows threading support routine. (check-in: 5e3dfa27 user: mistachkin tags: threads)
18:49
Performance improvements when reading large blobs, especially if SQLITE_DIRECT_OVERFLOW_READ is defined. (check-in: 2312eb6a user: drh tags: trunk)
18:37
Merge the latest trunk changes into the threads branch. (check-in: 39ac79cf user: drh tags: threads)
18:20
Merge changes to the query planner that strive to ensure that any index usage that is a proper subset of some other index usage always has a slightly higher cost. (check-in: 683dd379 user: drh tags: trunk)
14:12
Ensure the "PRAGMA journal_mode=WAL" works coming from any other journal_mode with ATTACH-ed databases. (check-in: e54330b4 user: drh tags: trunk)
07:52
Add test file sort3.test, which should have been part of commit [9d3351b8d7]. (check-in: dceed2c8 user: dan tags: threads)
02:13
Change vdbeSorterExtendFile() so that it makes a best effort to create the PMA file of the desired size, but does not return an error if unable. (check-in: 217814bc user: drh tags: threads)
2014-04-03
16:42
Merge all recent changes from trunk. (check-in: a0910079 user: drh tags: threads)
16:29
Use OP_Copy instead of OP_SCopy when moving results out of a subquery, to prevent the subquery results from changing out from under the outer query. Fix for ticket [98825a79ce1456]. Problem introduced by check-in [1e64dd782a126f48d78]. (check-in: d5513dfa user: drh tags: trunk)
16:25
Fix an integer overflow problem in the sorter. (check-in: 9d3351b8 user: dan tags: threads)
16:16
Use OP_Copy instead of OP_SCopy when moving results out of a subquery, to prevent the subquery results from changing out from under the outer query. Fix for ticket [98825a79ce1456]. Problem introduced by check-in [1e64dd782a126f48d78]. (check-in: ec6a0624 user: drh tags: branch-3.8.4)
14:31
Fix a typo in the "Synopsis:" comment for the OP_VFilter opcode. (check-in: 48ecdd4a user: drh tags: trunk)
14:29
Fix minor errors causing compilation to fail with SQLITE_MAX_WORKER_THREADS set to a value greater than zero. (check-in: 0561272a user: dan tags: threads)
02:54
Refactor local object and method names in vdbesort.c so that their names more closely reflect their actual use. (check-in: d284e30e user: drh tags: threads)
00:32
In the command-line shell, run set writable_schema before running the ".clone" command. (check-in: 9d2ae634 user: drh tags: trunk)
2014-04-02
18:58
Add a big introductory comment to vdbesort.c explaining its operation at a high level. Also adjust some symbolic names and fix other comment issues in that file. (check-in: eef60f1b user: drh tags: threads)
15:15
Fix some problems with OOM handling in vdbesort.c. (check-in: 47e702bd user: dan tags: threads)
14:38
Change the name of the SorterThread object to "SortSubtask" to avoid confusion with the SQLiteThread object. (check-in: 4ee2d910 user: drh tags: threads)
2014-04-01
18:41
When sorting data for a CREATE INDEX statement in single-threaded mode, assume that keys are delivered to the sorter in primary key order. Also fix various comments that had fallen out of date. (check-in: 821d1ac4 user: dan tags: threads)
15:38
Even if compile time option SQLITE_MAX_WORKER_THREADS is set to one or greater, set the default number of worker threads to zero. Distribute data more evenly between threads in sqlite3VdbeSorterWrite() to improve performance when sorting large amounts of data. Add new test file sort2.test. (check-in: 643c86a0 user: dan tags: threads)
10:19
Fix a problem with OOM handling in the sorter code. (check-in: 59cd5229 user: dan tags: threads)
01:24
Remove an unnecessary conditional, replacing it with an assert(). Improvements to comments. (Closed-Leaf check-in: 834bf1c3 user: drh tags: overflow-pgno-cache)
2014-03-31
23:57
Fix a compiler warning when SQLITE_DIRECT_OVERFLOW_READ is defined. Minor performance enhancement and size reduction. (check-in: 96385dc4 user: drh tags: overflow-pgno-cache)
22:03
Merge in the latest changes and fixes from trunk. (check-in: f6211540 user: drh tags: overflow-pgno-cache)
20:05
Remove an unnecessary conditional. (Closed-Leaf check-in: 7473c4df user: drh tags: query-plan-experiments)
19:57
Add the SQLITE_MAX_WORKER_THREADS compile time option. And the SQLITE_CONFIG_WORKER_THREADS sqlite3_config() switch. (check-in: 2774710d user: dan tags: threads)
19:49
Also make sure an index that is a proper subset of some other index has a higher cost than that other index. Add test cases. (check-in: b7830d23 user: drh tags: query-plan-experiments)
18:24
Make sure that an index that covers a proper superset of the WHERE clause terms of some other index has a lower cost than the other index. (check-in: ea8b0910 user: drh tags: query-plan-experiments)
13:42
Avoid a (harmless) buffer overread that is possible on an OOM when MEMSYS5 is engaged. (check-in: b3296267 user: drh tags: trunk)
2014-03-29
21:16
Experiments in picking better query plans, especially when the usage of one index is a subset of another. (check-in: 8f869ca7 user: drh tags: query-plan-experiments)
10:01
Fix a broken assert() in vdbesort.c. (check-in: 18d1b402 user: dan tags: threads)
09:34
Fix a problem in vdbesort.c causing spurious SQLITE_NOMEM errors when using memsys3 or memsys5. (check-in: a683c05f user: dan tags: threads)
06:27
Add the optimization to avoid some unnecessary calls to sqlite3VdbeRecordUnpack() added to the trunk by [707ea170b3]. (check-in: fc4d04e6 user: dan tags: threads)
2014-03-28
19:47
Fix a compiler warning and an after-OOM memory leak. (check-in: 58f7ca29 user: drh tags: orderby-planning)
19:18
Merge latest changes from orderby-planning branch. (check-in: 4c7fb542 user: dan tags: threads)
18:35
Merge the latest changes from trunk. (check-in: 3047a25f user: drh tags: orderby-planning)
14:41
Disable the wal64k.test script for non-unix systems since it depends on unix-only features. (check-in: 27deb6e4 user: drh tags: trunk)
12:56
Fix a harmless compiler warning. (check-in: a4e47150 user: drh tags: trunk)
03:12
Enhance the sqlite3VdbeRecordCompare() routines so that if they encounter database corruption, they will set the UnpackedRecord.isCorrupt field and return 0. The sqlite3BtreeMovetoUnpacked() routine detects this and returns SQLITE_CORRUPT, causing the corruption to be reported back to the top-level. (check-in: 7fa85eaa user: drh tags: trunk)
2014-03-27
19:25
Instead of allocating a single large buffer at the beginning of each sort operation, start with a small buffer and extend it using realloc() as required. (check-in: 81987c8c user: dan tags: orderby-planning)
18:36
Minor cleanup of the code in the query planner that computes the costs estimates for the various plans. There are no changes to the costs at this time. But the code is slightly more readable now and that might facilitate future enhancements. (check-in: 9b4d7226 user: drh tags: trunk)
17:23
Use xFetch() to access temporary files in vdbesort.c. Use a single large allocation instead of many small allocations when accumulating records in vdbesort.c. This is an interim commit - it allocates a buffer the size of the page-cache every time data is sorted. (check-in: f4ac1bf2 user: dan tags: orderby-planning)
14:05
Enhance the logest.c utility with new operators: "dup", "inv", "log", and "nlogn". Provide help on an invalid input. (check-in: b4bd2a06 user: drh tags: trunk)
00:09
Merge the latest trunk changes and the fix for the crash on a corrupt database. (check-in: 0b35346c user: drh tags: orderby-planning)
2014-03-26
19:45
Merge from trunk the fix for the crash on a corrupt database. (check-in: 8cb2b02b user: drh tags: threads)
15:14
Add an extra test case for the potential buffer overread patched by [28ddecff04]. (check-in: f585f5d7 user: dan tags: trunk)
15:05
Add a test case to verify that the previous change avoids excess buffer overread in sqlite3VdbeRecordCompare(). (check-in: 2b28e8d5 user: drh tags: trunk)
14:51
Earlier detection of corruption in sqlite3VdbeRecordCompare() in order to avoid a potential buffer overread. (check-in: 28ddecff user: drh tags: trunk)
12:02
Add an assert() and a comment to clarify the operation of the vdbeRecordCompareInt() routine. (check-in: 851abdb8 user: drh tags: trunk)
2014-03-25
20:28
Adjust the repeat counts on several tests in speedtest1 so that the relative time spent on the test is roughly the same regardless of --size. (check-in: 7922809e user: drh tags: trunk)
18:29
Merge enhancements and fixes from trunk. (check-in: e005f2d6 user: drh tags: orderby-planning)
17:45
Add another performance test case to speedtest1. This case is another ORDER BY test but this time without LIMIT. (check-in: 9ab7ffd5 user: drh tags: trunk)
17:07
Fix a problem in the code added by [707ea170b3] causing vdbesort.c to sort unstably. (check-in: d3e640af user: dan tags: orderby-planning)
15:04
Remove the sequence values from sorter records used by ORDER BY as well. (check-in: c3ae3697 user: dan tags: orderby-planning)
14:54
Add an ORDER BY test case to speedtest1.c (check-in: 58812264 user: drh tags: trunk)
14:12
Enable four sorting threads by default in the command-line shell. (check-in: 1cab8357 user: drh tags: threads)
13:17
Merge all fixes and enhancements from trunk. (check-in: b415dfb6 user: drh tags: threads)
11:00
Detect when a VdbeCursor is still pointing at a valid row but that row has moved, and invalidated the return from prior sqlite3BtreeDataFetch() or sqlite3BtreeKeyFetch() calls. (check-in: e6798871 user: drh tags: trunk)
2014-03-24
20:19
Omit the sequence value from sorter records used by GROUP BY queries that cannot use an index. (check-in: 3f90abdd user: dan tags: orderby-planning)
18:08
Avoid unnecessary moving of content between registers during an ORDER BY. (check-in: 4f472acc user: drh tags: orderby-planning)
16:30
Remove unused variables Parse.nColCache and Parse.iColCache. (check-in: 4d7551ce user: dan tags: trunk)
15:00
Fix arithmetic operators so that they do not change the affinity of their input operands. Ticket [a8a0d2996a]. (check-in: 221f8f94 user: drh tags: trunk)
11:23
Avoid attempting to mmap memory from an offset that is not a multiple of the system page size on systems with page sizes larger than 32KB. (check-in: db7d62c8 user: dan tags: trunk)
09:34
Remove an unnecessary temporary register allocation. (check-in: 5d506743 user: dan tags: orderby-planning)
02:20
Remove a pointless OP_Once operation in ORDER BY clauses with LIMIT. (check-in: e6c59d23 user: drh tags: orderby-planning)
01:43
Further enhancements to generated VDBE code for ORDER BY. (check-in: e7188fad user: drh tags: orderby-planning)
2014-03-23
18:47
merge fixes from trunk (check-in: faf7f9ca user: drh tags: orderby-planning)
17:45
Use only a single OP_MakeRecord instead of two when constructing entries to go onto a sorter. (check-in: d696cded user: drh tags: orderby-planning)
16:29
Avoid a possible use of an uninitialized variable following an I/O or OOM error. (check-in: 641408a1 user: drh tags: trunk)
2014-03-22
02:19
Clear the sort-order flags on the KeyInfo object associated with the OP_Compare/OP_Jump of the block-sort logic, in order to make the OP_Jump fully testable. (check-in: 9b2838f2 user: drh tags: trunk)
01:52
Increase the version number to 3.8.5. (check-in: 9760879d user: drh tags: trunk)
00:27
Fix the ORDER BY optimization logic so that it will do a block-sort on a partial DESC ORDER BY. This enhancement uncovered a memory leak in pushUntoSorter() which is also fixed. (check-in: c36f7461 user: drh tags: trunk)
2014-03-21
20:58
Add the ability to use indices for the first few terms of an ORDER BY clause, then sort in batches to handle the later terms. (check-in: fa06a6fe user: drh tags: trunk)
19:56
Change the names of SRT_DistTable and SRT_Table used by CTE to more meaningful SRT_DistFifo and SRT_Fifo, respectively. Simplify the IgnorableOrderby() macro in the process. (check-in: 45d8cc67 user: drh tags: trunk)
19:27
Avoid leaking memory in an obscure case where the flattener adds an ORDER BY clause to the recursive part of a recursive query. (check-in: 1f413aca user: dan tags: trunk)
18:45
Merge the OFFSET-on-query-without-FROM fix from trunk. (check-in: 71e9ae72 user: drh tags: orderby-planning)
18:16
Fix the OFFSET clause so that it works correctly on queries that lack a FROM clause. Ticket [07d6a0453d4ed8]. (check-in: 179ef816 user: drh tags: trunk)
15:24
New test case for block-sorting. (check-in: e70cfa28 user: drh tags: orderby-planning)
2014-03-20
20:56
Merge trunk fixes for "x IN (?)" handling. (check-in: eca35871 user: drh tags: orderby-planning)
19:04
Remove a testcase() that is now always true due to the "x IN (?)" optimization. Add an ALWAYS() around a conditional in the parser that cannot be false. (check-in: d5a1530b user: drh tags: trunk)
18:56
Only use the direct-overflow-read optimization if all data from the overflow page in question is being read. (check-in: d8e1f75d user: dan tags: overflow-pgno-cache)
18:45
Fix the EXPLAIN indenter in the command-line shell to correctly handle NextIfOpen and PrevIfOpen opcodes. (check-in: 01944c53 user: drh tags: trunk)
17:03
The "x IN (?)" optimization in check-ins [2ff3b25f40] and [e68b427afb] is incorrect, as demonstrated by the in4-5.1 test case in this check-in. The "COLLATE binary" that was being added to the RHS of IN was overriding the implicit collating sequence of the LHS. This change defines the EP_Generic expression node property that blocks all affinity or collating sequence information in the expression subtree and adds that property to the expression taken from RHS of the IN operator. (check-in: 2ea4a9f7 user: drh tags: trunk)
15:14
Fix harmless compiler warnings. (check-in: b1435f26 user: drh tags: trunk)
14:56
Previous check-in is not quite correct. "x IN (?)" is not exactly the same as "x==?" do to collation and affinity issues. The correct converstion should be to "x==(+? COLLATE binary)". The current check-in fixes this problem and provides test cases. Ticket [e39d032577df69] (check-in: 2ff3b25f user: drh tags: trunk)
13:26
Convert expressions of the form "X IN (?)" with exactly one value on the RHS of the IN into equality tests: "X=?". Add test cases to verify that statements work correctly on this corner case. Fix for ticket [e39d032577df6942]. (check-in: e68b427a user: drh tags: trunk)
12:17
Fix an unnecessarily obtuse use of a bitmask flag. (check-in: ca314081 user: drh tags: trunk)
09:42
Add a test to ensure os_unix.c works with 64KiB OS pages. (Closed-Leaf check-in: e3d2be3b user: dan tags: shm-mapping-fix)
08:59
Add an experimental fix to avoid attempting to mmap memory from an offset that is not a multiple of the system page size on systems with page sizes larger than 32KB. (check-in: 6f3a5c24 user: dan tags: shm-mapping-fix)
2014-03-19
23:42
Merge the vdbesort.c optimization from trunk. (check-in: e4bfffb9 user: drh tags: orderby-planning)
23:24
Fix query planner weights associated with choosing block-sorting. Fix block sorting of tables with collating functions. Fix various test cases. All "veryquick" tests are now passing, though more tests need to be added. (check-in: 01afbf97 user: drh tags: orderby-planning)
20:01
Avoid some unnecessary calls to sqlite3VdbeRecordUnpack() that were being made when merging data from two or more temp files together in vdbesort.c (check-in: 707ea170 user: dan tags: trunk)
17:41
Make it possible for block-sort to use the OP_SorterOpen sorter in addition to a generic OP_OpenEphemeral. (check-in: 7ce2daaf user: drh tags: orderby-planning)
16:56
Fix a problem in the block-sort logic that can arise if the VDBE opcode array is resized while the block-sort logic is being coded. "make test" now runs to completion, though there are still 17 failures. (check-in: 62f3a220 user: drh tags: orderby-planning)
15:17
Avoid reusing temporary registers in co-routines when doing block-sorting. (check-in: 463d921b user: drh tags: orderby-planning)
14:30
Make sure the where.c query planner never reports that the number of ORDER BY terms that are satisfied by indices is negative. (check-in: b186d8d1 user: drh tags: orderby-planning)
14:10
First attempt at getting block-sort to work. This is an incremental check-in. There are many problems still to be worked out. (check-in: 59742dd4 user: drh tags: orderby-planning)
2014-03-18
20:33
Make the partial-ORDER-BY information in the query planner available to the SELECT code generator. Still doesn't make a difference in the generated code. (check-in: e258df23 user: drh tags: orderby-planning)
18:59
Adjust the query planner to keep track of the number of ORDER BY terms satisfied. Still doesn't do anything with this information. Some tests fail after this check-in, but all failures are believed to be benign. The failures will be addressed at a later stage. (check-in: 59d49b7f user: drh tags: orderby-planning)
15:30
Experiments with the optimization of ORDER BY and GROUP BY clauses. (check-in: b1509025 user: drh tags: orderby-planning)
2014-03-17
15:43
Add an experimental multi-threaded capability to vdbesorter.c. (check-in: ff0b5c85 user: dan tags: threads)
15:06
Clean up some obsolete "register" declarations in printf.c. (check-in: ecd9d3f9 user: drh tags: trunk)
14:24
Performance enhancements and size reduction for sqlite3VXPrintf() (check-in: eb071eb5 user: drh tags: trunk)
2014-03-14
11:46
Fix a harmless compiler warning that crops up with SQLITE_MAX_MMAP_SIZE=0. (check-in: 1277932b user: drh tags: trunk)
2014-03-13
15:41
Merge latest trunk changes into this branch. (check-in: d17231b6 user: dan tags: threads)
2014-03-12
19:38
Fix an obscure bug causing sqlite3_close() to fail if there are virtual tables on the disconnect list when it is called. (check-in: 6504aa47 user: dan tags: trunk)
19:20
Changes to FTS to ensure that it does not access the database from within the xConnect method. (check-in: c67a52c3 user: dan tags: trunk)
12:44
Prevent the rtree module from reading sqlite_stat1 data from the wrong database. (check-in: 7ce03c1b user: dan tags: trunk)
2014-03-11
23:44
Remove a stray C99-style comment. (check-in: f500e87d user: drh tags: overflow-pgno-cache)
23:40
Combine the various boolean fields of the BtCursor object into a single bit-vector. This allows setting or clearing more than one boolean at a time and makes the overflow-pgno-cache branch faster than trunk on speedtest1. (check-in: 968fec44 user: drh tags: overflow-pgno-cache)
20:33
Enable the b-tree cursor object's overflow page-number cache, which is normally enabled only for incr-blob cursors, for all cursors. (check-in: da591985 user: dan tags: overflow-pgno-cache)
15:27
Version 3.8.4.1 (check-in: 018d317b user: drh tags: trunk, release, version-3.8.4.1)
15:25
Update version number to 3.8.4.1 (check-in: 33f5694f user: drh tags: trunk)
09:19
Add a test to see what happens if an rtree constructor encounters an SQLITE_BUSY error. No changes to code. (check-in: 5527e236 user: dan tags: trunk)
2014-03-10
20:12
Adjustments to the cost computation for the skip-scan query plan, to take into account the fact that a seek has to occur on each skip. (check-in: 0769eebd user: drh tags: trunk)
18:03
Attempt to work around MSVC's treatment of __LINE__ as a non-constant value in "Edit and Continue" mode by avoiding the use of __LINE__ when SQLITE_VDBE_COVERAGE is not defined. (check-in: 0a5318bc user: drh tags: trunk)
12:20
Version 3.8.4 (check-in: 530a1ee7 user: drh tags: trunk, release, version-3.8.4)
2014-03-08
19:07
Fix a bug causing "SELECT char()" to return SQLITE_NOMEM. (check-in: ba39df9d user: dan tags: trunk)
2014-03-07
14:57
Improved comment on the pager.c PERSIST rollback journal delete logic inside of hasHotJournal(). No changes to code. (check-in: e5b17a9d user: drh tags: trunk)
03:31
Revise change from the previous check-in to clarify the situation when handling open journal files, regardless of journal mode. (check-in: 1c318ef3 user: mistachkin tags: trunk)
02:29
Avoid calling sqlite3OsDelete() on a file that is open, since this causes Windows to run *very* slowly. Comes up on error recovery in journal_mode=PERSIST. (check-in: fdc651e2 user: mistachkin tags: trunk)
2014-03-06
18:16
Do not run corruptH.test in mmap mode. (check-in: c0d54b4e user: dan tags: trunk)
13:38
Improved EXPLAIN indentation of a loop in the ANALYZE logic for STAT4. Mark the not-found jump of a seek operation in that loop as never taken. (check-in: 0a4200f9 user: drh tags: trunk)
12:36
Remove a branch that is never taken from where.c. (check-in: 4a499722 user: dan tags: trunk)
02:15
Cosmetic change to the shell in-memory database warning to skip coloring the trailing period. (check-in: c87d8e07 user: mistachkin tags: trunk)
01:56
Fix some incorrect comments and typos in comments. Add testcase() macros to some of the new record comparison code. (check-in: b83cfe89 user: drh tags: trunk)
00:30
Better loadable extension handling in the Win32 VFS when compiled for Cygwin. (check-in: 29b0a4f1 user: mistachkin tags: trunk)
00:28
Better support for MinGW 4.x. (check-in: 170e0585 user: mistachkin tags: trunk)
2014-03-05
19:36
Always include the ctype.h header in the spellfix.c extension. (check-in: bfd75f47 user: drh tags: trunk)
19:13
Avoid running a couple of test cases that use realloc() extensively if SQLITE_MEMDEBUG is defined. (check-in: e406d4bb user: dan tags: trunk)
19:04
Fix a harmless compiler warning on MSVC. (check-in: 0723effc user: drh tags: trunk)
17:29
Add SQLITE_OMIT_CTE to the list of compile options that might be returned by "PRAGMA compile_options". (check-in: f33f2b3f user: dan tags: trunk)
16:15
Add tests to join.test to verify that it is not possible to use more than 64 tables in a join. (check-in: ef1a9986 user: dan tags: trunk)
15:52
Count the number of elements in a SrcList object using an "int" rather than a "u8", to avoid overflows and to work around an issue in the C compiler on AIX. (check-in: eee2a13f user: drh tags: trunk)
15:04
Add a test case for the problem fixed by [1d134ba2ed]. (check-in: d4fbc05d user: dan tags: trunk)
14:40
When converting a result type from TEXT to BLOB using the sqlite3_value_blob() interface, continue to report SQLITE_TEXT as the true type from sqlite3_value_text() as long as that text is still valid. The maintains legacy behavior from before the noMemType change. (check-in: 1d134ba2 user: drh tags: trunk)
12:47
Separate the column NULL value constant into a separate routine for greater commonality with the sessions branch. (check-in: 12cbebb9 user: drh tags: trunk)
11:48
Remove the redundant memType field from struct Mem. (check-in: 9e852857 user: dan tags: trunk)
11:22
Do not run corruptI.test with the mmap permutation. (check-in: 378b290d user: dan tags: trunk)
01:29
Experimental simplification of memory flags/type handling. (Closed-Leaf check-in: bac2820e user: mistachkin tags: noMemType)
2014-03-04
21:19
Avoid indexing off the front end of an array when creating a view with two or more blank column names in the SELECT statement that defines the view. (check-in: 554501f1 user: drh tags: trunk)
21:00
Fix a problem with "DEFAULT (-(-9223372036854775808))" clauses in ALTER TABLE ... ADD COLUMN commands. (check-in: e072cb3e user: dan tags: trunk)
18:06
Fix a potential memory use-after-free problem following an OOM error. (check-in: 767ccb1f user: drh tags: trunk)
16:21
Fix an assert() so that it takes OOM errors into account. (check-in: 53f6ec79 user: drh tags: trunk)
16:05
Ensure that BtreeMovetoUnpacked() does not try to invoke xRecordCompare when it is set to NULL. (check-in: 2879234b user: dan tags: trunk)
13:18
Improve clarity of presentation in the sqlite3VdbeMemFromBtree() routine. (check-in: 9830c343 user: drh tags: trunk)
12:07
Fix comment in test. (check-in: 1e57f67b user: mistachkin tags: trunk)
11:54
Fix minor typos in the new test file. (check-in: 3cbb9b1b user: mistachkin tags: trunk)
11:35
Add tests to verify the fix for bug [4ef7e3cfca]. (check-in: 62410bb8 user: dan tags: trunk)
11:29
Fix name resolution problem in sub-selects within triggers, ticket [4ef7e3cfca]. (check-in: 5bcd0b1c user: mistachkin tags: trunk)
11:16
Fix harmless compiler warning. (check-in: 8d18a803 user: mistachkin tags: trunk)
04:12
Refactor the sqlite3VdbeRecordCompare() routine used to compare btree records. Create fast-track special case routines to handle the common cases more quickly. This gives a significant performance boost. (check-in: 3325ad5b user: drh tags: trunk)
04:04
Fix more instances of assuming 'char' is signed. And, make sure to never shift a signed integer. (Closed-Leaf check-in: f10130ed user: drh tags: broken-on-arm)
00:15
Do not assume that 'char' is signed. Make it explicit. (check-in: 979da752 user: drh tags: broken-on-arm)
2014-03-03
21:59
Refactor the sqlite3VdbeRecordCompare() routine used to compare btree records. Create a couple of fast-track routines to handle the common cases of a string with BINARY collation or integer values as the left-most column. This gives a significant performance boost in common use. Oops: This build does not work on the Beaglebone where "char" defaults to unsigned. (check-in: aec5473a user: drh tags: broken-on-arm)
21:46
Fix a couple of harmless compiler warnings. (Closed-Leaf check-in: fcf480cc user: drh tags: experimental)
20:48
Avoid a buffer overread in vdbeCompareRecordInt() that might occur if the database is corrupt. (check-in: 7c0b4381 user: dan tags: experimental)
19:29
Fix a typo in a comment. No changes to code. (check-in: 1f4991ab user: drh tags: experimental)
18:25
Fix compiler warnings. (check-in: ba899372 user: drh tags: experimental)
17:48
Merge latest trunk changes. (check-in: 1d603564 user: dan tags: experimental)
17:36
Change an OP_SCopy into an OP_Copy in a case where the destination might be used after the source has changed. (check-in: c0fa0c0e user: drh tags: trunk)
16:48
Change the "explain_i" tcl test command so that xterm color codes are only added if the output is actually a terminal. (check-in: 559835e5 user: dan tags: trunk)
15:13
Fix a harmless compiler warning. (check-in: d7f6837e user: drh tags: experimental)
14:45
Merge latest trunk changes. (check-in: e00ed717 user: dan tags: experimental)
14:20
Fix a segfault that can occur following an OOM error. (check-in: 7fdd378d user: dan tags: trunk)
00:12
Change the MEM_Dyn flag so that it means that Mem.xDel exists and must be used to free the string or blob. Add tighter invariant checks on Mem. (check-in: e3f6c61e user: drh tags: trunk)
2014-03-01
19:45
Merge trunk changes. (check-in: 9c1747b5 user: dan tags: experimental)
19:44
Remove the vdbeRecordCompareLargeHeader function. Fix some other details. (check-in: 3861e853 user: dan tags: experimental)
18:13
Change the MEM_Dyn flag so that it means that Mem.xDel exists and must be used to free the string or blob. Add tighter invariant checks on Mem. (Closed-Leaf check-in: 44e1c337 user: drh tags: enhanced-mem-check)
16:24
Factor the Mem invariant checker into a separate procedure (rather than a macro) so that it can be more easily extended. (check-in: 354699d5 user: drh tags: enhanced-mem-check)
14:45
Add extra assert() statements trying to catch a Mem object in an inconsistent state. (check-in: 4aeb3ae4 user: drh tags: enhanced-mem-check)
2014-02-28
20:47
In the command-line shell add the (undocumented and unsupported) ".eqp" command and -eqp command-line option, to cause EXPLAIN QUERY PLAN to be run on each SQL statement as it is evaluated. Intended use is for analysis of the query planner. (check-in: e6ecf733 user: drh tags: trunk)
19:37
Provide an #ifdef in shell.c to work around issues when cross-compiling from Ubuntu to windows. (check-in: 0a3579d9 user: drh tags: trunk)
18:39
Update some test cases that deal with corrupt databases. (check-in: 3a09f560 user: dan tags: experimental)
09:48
Minor tweak to vdbeRecordCompareInt(). (check-in: 284bde0e user: dan tags: experimental)
2014-02-27
20:52
Merge in latest trunk changes. (check-in: 8f30b095 user: dan tags: experimental)
20:44
Further changes to sqlite3VdbeRecordCompare(). (check-in: 57089374 user: dan tags: experimental)
15:11
A better way of handling the USE_SYSTEM_SQLITE #define in shell.c. (check-in: 51ce713c user: drh tags: trunk)
15:04
Add #defines to the command-line shell source code (shell.c) so that it can be imported directly into other projects (ex: Fossil) and used without editing. (check-in: a6690400 user: drh tags: trunk)
05:47
Merge updates from trunk. (check-in: ed0bfcfa user: mistachkin tags: winIoRetry)
2014-02-26
21:35
More efficient removal of duplicates in recursive queries using the UNION compound operator. (check-in: 06c2db87 user: drh tags: trunk)
13:53
In the command-line shell for CSV import, if the lines are \r\n terminated and the last field is blank, make sure an empty string and not a "\r" string is imported. (check-in: 9c2e7612 user: drh tags: trunk)
02:26
Improved handling of constants and especially constant functions in the ORDER BY clause of a query. Do not optimize out "ORDER BY random()". Fix for ticket [65bdeb9739605cc2296]. (check-in: dca1945a user: drh tags: trunk)
2014-02-25
21:55
Do not allow temporary registers to be in use across an OP_Yield within a co-routine. Fix for ticket [8c63ff0eca81a9132d8]. (check-in: 97a8c973 user: drh tags: trunk)
21:01
Attempt to speed up sqlite3VdbeRecordCompare() by various means. This code is in an interim state. (check-in: 85206e0b user: dan tags: experimental)
18:12
Also adjust the order of files in the amalgamation to ensure that _FILE_OFFSET_BITS is defined before any #include, for QNX. (check-in: 23001a85 user: drh tags: trunk)
14:52
QNX requires that _FILE_OFFSET_BITS be set prior to any system #include. (check-in: 953cdd6a user: drh tags: trunk)
2014-02-24
21:42
Fix several small style/consistency issues with the previous check-in. (check-in: 2477b3a2 user: mistachkin tags: trunk)
21:23
Merge updates from trunk. (Closed-Leaf check-in: 854d410a user: mistachkin tags: cygDlOpen)
21:20
Enhance testing support for the Win32 VFS dynamic extension loading facilities. (check-in: 53081e72 user: mistachkin tags: trunk)
19:49
Close some stray connections in walro.test. (check-in: d6746cab user: dan tags: trunk)
19:07
In memsys5, initialize new allocations to non-zero bytes. Change the content of freed allocations to prevent use after free. These changes in SQLITE_DEBUG only. (check-in: ba5f0a55 user: drh tags: trunk)
14:24
Remove an unused variable from the VDBE_PROFILE compile-time option. Keep the opcode count in an u32 instead of an int. (check-in: 4df0ac90 user: drh tags: trunk)
2014-02-21
10:48
Merge updates from trunk. (check-in: 09cf240a user: mistachkin tags: winHdr)
05:44
Better loadable extension handling in the Win32 VFS when compiled for Cygwin. (check-in: 6676475c user: mistachkin tags: cygDlOpen)
2014-02-20
19:42
Fix the text of a comment used to generate VDBE opcode documentation so that it omits symbols that can be mistaken for a hyperlink by the parser. (check-in: b46d4e89 user: drh tags: trunk)
19:32
Fix a harmless shadowed-variable warning. (check-in: 82402909 user: drh tags: trunk)
19:23
Make sure that the difference between two string pointers is passed into sqlite3_mprintf() as type "int". (check-in: d5d973fe user: drh tags: trunk)
2014-02-19
19:14
Add the VdbeCoverageNeverTaken() macro, and comments that better describe how the VDBE branch coverage measurement works. Add some tags to provide 100% VDBE branch coverage. (check-in: c1e94169 user: drh tags: trunk)
14:20
Add the SQLITE_NOTNULL P5 code for comparison operations - really a composite of SQLITE_NULLEQ and SQLITE_JUMPIFNULL. This flag indicates that NULL operands are not possible and raises and assert() if NULL operands are seen. Also omit an unnecessary scan of the sqlite_sequence table when writing into an AUTOINCREMENT table. (check-in: d2c047f3 user: drh tags: trunk)
01:31
Make sure a multi-row VALUES clause works correctly in a compound SELECT. (check-in: 85b355cf user: drh tags: trunk)
00:53
Tweaks in support of VDBE branch test coverage. (check-in: b9782564 user: drh tags: trunk)
2014-02-18
11:31
Fix VDBE branch accounting on comparison operators. (check-in: b287520c user: drh tags: trunk)
05:18
Enhance the Win32 VFS I/O retry logic. (check-in: adba783c user: mistachkin tags: winIoRetry)
03:07
Add VdbeCoverage() and VdbeCoverageIf() macros for improved VDBE coverage testing. (check-in: b92d31a9 user: drh tags: trunk)
01:07
Improvements to "NOT IN (SELECT ...)" processing. Only test for NULL values on the RHS on the first iteration, then remember the result. There has been logic to do this for year, but it didn't work right and ended up repeating the NULL test on every iteration. This inefficiency was found using the VDBE coverage testing tools. (check-in: 915f6f1c user: drh tags: trunk)
2014-02-17
23:52
Merge in performance enhancements for INSERT operations, especially INSERTs on tables that have no affinity columns or that have many indices or INSERTs with content coming from a SELECT. Add the SQLITE_TESTCTRL_VDBE_COVERAGE test control and the SQLITE_VDBE_COVERAGE compile-time option used for measure coverage of branches in VDBE programs. (check-in: a7268769 user: drh tags: trunk)
22:40
Add logic to do test coverage measurements on the VDBE code. (Closed-Leaf check-in: ce184c7b user: drh tags: insert-optimization)
15:40
Add a test case for OP_SoftNull. (check-in: f29d194e user: drh tags: insert-optimization)
15:36
Merge the VDBE_PROFILE fixes from trunk. (check-in: 2914e419 user: drh tags: insert-optimization)
14:59
Avoid unnecessary calls to applyAffinity() during INSERT and UPDATE operations, especially for table that have indices and tables for which all columns have affinity "NONE". (check-in: 35b4d6e9 user: drh tags: insert-optimization)
01:13
Fix the VDBE_PROFILE logic. Add a script to process the output file. (check-in: 7adb3da2 user: drh tags: trunk)
2014-02-16
19:20
Use the modern MinGW major version macro, not the deprecated one. (Closed-Leaf check-in: 057c16ee user: mistachkin tags: mingw4x)
01:55
Enhance the code generator for INSERT INTO ... SELECT so that the SELECT generates output directly in the registers that INSERT INTO will be using, in many cases, and OP_SCopy operations can thus be avoided. (check-in: aa2d8b0e user: drh tags: insert-optimization)
2014-02-14
23:49
Seek past NULLs in a top-constrained search. Avoid checking for NULLs in the body of the search. (check-in: e07a32f3 user: drh tags: trunk)
23:35
Better support for MinGW 4.x. (check-in: e1472307 user: mistachkin tags: mingw4x)
20:59
Reduce the number of cases where it is necessary to check for NULL after the loop terminating condition. (check-in: 3c1ae447 user: drh tags: trunk)
15:13
Add OP_IdxGT and OP_IdxLE as distinct opcodes. Formerly these operations where done using OP_IdxGE and OP_IdxLT with the P5 flag set. But VDBE code is easier to read with distinct opcode names. Also change OP_SeekGe to OP_SeekGE, and so forth, so that the capitalization is consistent. The whole point of this change is to improve the readability of VDBE listings. (check-in: b6bea903 user: drh tags: trunk)
00:25
Revise how the Tcl system encoding is handled by the test suite. (check-in: 9e573198 user: mistachkin tags: trunk)
2014-02-13
21:57
Improvements to the makefile and README for MSVC. (check-in: b22b6140 user: mistachkin tags: trunk)
19:27
Ensure that if the "psow=0" URI option or FCNTL_POWERSAFE_OVERWRITE file-control is used to clear the power-safe overwrite flag, extra padding frames are added to the WAL file. (check-in: 48c821fd user: dan tags: trunk)
19:10
Change README to README.md and expand it. Remove unrelated and obsolete files. (check-in: 18d4e258 user: drh tags: trunk)
18:46
Avoid passing a flags argument with the internal WAL_SYNC_TRANSACTIONS bit set when calling sqlite3OsSync(). (check-in: e3b79e92 user: dan tags: trunk)
13:42
Update the tclconfig files to the latest from http://core.tcl.tk/tclconfig. (check-in: b81ba7a4 user: drh tags: trunk)
2014-02-12
23:52
Minor simplifications to the "zeroPage()" routine in btree.c. (check-in: cc8f10bc user: drh tags: trunk)
21:31
Remove the "rowid cache" that sought to remember the largest rowid for a table and thereby speed up OP_NewRowid. That cache was ineffective. Removing it results in a performance increase of 0.4%, less memory usage, and a slightly smaller library size. (check-in: 56bc5ce8 user: drh tags: trunk)
14:43
Make sure "rowid" columns are correctly resolved in joins between normal tables and WITHOUT ROWID tables. Fix for ticket [c34d0557f740c45070]. (check-in: 5d01426d user: drh tags: trunk)
2014-02-11
16:24
Increase the version number to 3.8.4 (check-in: 0a8bcbbd user: drh tags: trunk)
16:22
Updates to the command-line shell. Simplify the banner message. Add the ".save" command as an alias for ".backup". When starting with no arguments, include a banner message warning that the database is transient and in-memory and mention the ".open" command. (check-in: f5ad1e1b user: drh tags: trunk)
14:37
Fixes to the "editline" support in the command-line shell. (check-in: 7989ce5f user: drh tags: trunk)
01:50
Make sure that virtual WHERE-clause terms do not get transformed into real terms when processing set of OR-connected terms. Fix for ticket [4c86b126f22ad]. (check-in: c950d6c4 user: drh tags: trunk)
2014-02-10
21:07
Fix a pointless conditional. Add a test case. (check-in: 9367632d user: drh tags: trunk)
19:59
Add the ".save" command as an alias for ".backup". Improvements to the way font changes are implemented on the in-memory database warning. (Closed-Leaf check-in: fe284afe user: drh tags: memdb-warning)
19:36
On unix, make the "transient in-memory database" text bold, but not red. Leave the text read on windows. (check-in: c9eba2f7 user: drh tags: memdb-warning)
19:27
In the command-line shell, on the banner, warn about the use of a transient in-memory database in bold red text. (check-in: 0fbc0fce user: drh tags: memdb-warning)
18:56
Fix the compound-select-to-subquery converter so that it works with the new compound-select object linkage introduced as part of the fix for ticket [31a19d11b97088296]. (check-in: 572d4be4 user: drh tags: trunk)
16:13
Modify the command-line shell to print a warning when using an in-memory database. (check-in: 90e9deae user: drh tags: memdb-warning)
15:56
Improvements to a "Synopsis:" comment in the VDBE engine. (check-in: 0dfa7ee9 user: drh tags: trunk)
12:59
Faster implementation for sqlite3MulInt64(). (check-in: 010c48f6 user: drh tags: trunk)
03:21
Faster and smaller implementation of sqlite3_value_type(). (check-in: 5708bc24 user: drh tags: trunk)
2014-02-09
23:59
Add a compound-query test to the speedtest1 test program. (check-in: 53299575 user: drh tags: trunk)
18:02
Use the WITH clause to help resolve names for SELECT statements on the left of a compound query. Proposed fix for ticket [31a19d11b97088296a]. (check-in: 67bfd59d user: drh tags: trunk)
00:52
Add the Mandelbrot Set testcase to the "cte" testset of speedtest1. (check-in: 56febbeb user: drh tags: trunk)
00:18
Add a new "testset" to the speedtest1 program: The sudoku solver. (check-in: 4677ef2f user: drh tags: trunk)
2014-02-08
23:20
Do away with the "multi-register pseudo-table" abstration. Instead, just use an OP_SCopy to load results directory from the result registers of the co-routine. (check-in: 1e64dd78 user: drh tags: trunk)
19:12
Change the OP_Found opcode so that it expands zero-blobs prior to comparing them. Fix for ticket [fccbde530a6583b] (check-in: e2303d1b user: drh tags: trunk)
13:24
Fix a harmless compiler warning in VS2013. (check-in: 83116ee3 user: drh tags: trunk)
13:22
Fix a harmless compiler warning in VS2013. (check-in: 35f2793d user: drh tags: branch-3.8.3)
13:12
Tweaks to the generated VDBE code to make it a little easier to follow. (check-in: 129217ee user: drh tags: trunk)
04:24
Enable constant expression factoring even if no tables are read and no transaction is started. (check-in: a45b8771 user: drh tags: trunk)
01:40
Change the OP_Trace opcode to OP_Init and give it the ability to jump to the initialization code at the bottom of the program, thus avoiding the need for an extra OP_Goto. (check-in: 192dea97 user: drh tags: trunk)
2014-02-07
22:21
Add opcodes OP_InitCoroutine and OP_EndCoroutine. Use these to remove the need for separate boolean registers to record when a co-routine has finished. (check-in: 5a88b6a7 user: drh tags: trunk)
19:33
Fix redundant definitions of _LARGE_FILE and _LARGEFILE_SOURCE. (check-in: 4043d879 user: drh tags: trunk)
19:26
In the TCL bindings, make sure Tcl_AppendResult() is always terminated by "(char*)0" and not just "0". (check-in: ea4d23d1 user: drh tags: trunk)
19:18
Change the OP_InitCoroutine instruction to jump over the co-routine implementation. (Closed-Leaf check-in: a522f364 user: drh tags: coroutine-refactor)
18:27
Get rid of the OP_Undef and OP_IsUndef opcodes in favor of higher-level OP_InitCoroutine and OP_EndCoroutine. (check-in: 1ec0e9dd user: drh tags: coroutine-refactor)
13:20
Add the OP_Undef and OP_IsUndef opcodes. With these, use the first register in the result register range as the flag to indicate EOF on an INSERT from a SELECT, rather than allocating a separate boolean register for that task. (check-in: 6fb74485 user: drh tags: coroutine-refactor)
03:28
More comment updates. No changes to code. (check-in: be24fbc2 user: mistachkin tags: trunk)
02:29
Update comments in vdbe.c. No changes to code. (check-in: 1122b410 user: drh tags: trunk)
2014-02-06
23:56
Delete the OP_VerifySchema opcode. Enhance OP_Transaction to do the schema version checks that OP_VerifySchema used to do. (check-in: 2f3376eb user: drh tags: trunk)
13:18
Change the spellfix1 virtual table to deterministically names its shadow tables. (check-in: 5219cdfc user: drh tags: trunk)
02:46
Add additional error messages and a progress spinner to the ".clone" command. (check-in: dd0db3f0 user: drh tags: trunk)
01:15
Rename the '.repair' shell command to '.clone'. (check-in: 4f9d9562 user: mistachkin tags: trunk)
00:49
Add the ".repair" command to the command-line shell. (check-in: d1dfadea user: drh tags: trunk)
2014-02-05
11:05
In the Win32 VFS, the winSysInfo variable should be static. (check-in: 4a4dd371 user: mistachkin tags: trunk)
2014-02-04
23:45
Do not mark the ephemeral tables used to hold the RHS of IN clauses as unordered because the NGQP will use those ephemeral tables to help order the output. This is not an issue for standard SQLite since ephemeral tables there are always ordered, regardless of the hint. It only affects systems that substitute an alternative storage engine. (check-in: f2504089 user: drh tags: trunk)
20:46
Remove the SF_Materialize flag from the SELECT object as it does not accomplish anything useful. (check-in: 65d5dcdd user: drh tags: trunk)
15:55
Rearrange fields in the Parse object for a tighter packing, resulting in an 8% size reduction on x64. (check-in: 3e1a3f68 user: drh tags: trunk)
2014-02-03
17:04
Performance optimizations in sqlite3PcacheFetch(). (check-in: b60cc11e user: drh tags: trunk)
14:04
Provide hints to the btree layer Next and Previous primitives to let them know if they can be no-ops if the underlying index is unique. (check-in: 6c643e45 user: drh tags: trunk)
13:52
Version 3.8.3 (check-in: e816dd92 user: drh tags: trunk, release, version-3.8.3)
13:49
Minor change to TEA extension docs in an attempt to make links work correctly. (check-in: af3c775e user: drh tags: trunk)
2014-01-31
11:50
Update the "sqlite3.1" unix manpage document. (check-in: 21ce9e3a user: drh tags: trunk)
06:35
Minor change to TEA extension docs in an attempt to make links work correctly. (Closed-Leaf check-in: 492585c8 user: mistachkin tags: teaDoc)
2014-01-30
17:47
Update evidence marks on SELECT tests. Comment changes only. No changes to code or tests. (check-in: 1973d80e user: drh tags: trunk)
15:03
Fix requirements marks only. No changes to code or tests. (check-in: 4a34378b user: drh tags: trunk)
14:10
Update a requirement mark and add some additional test cases to cover the requirement associated with ORDER BY and LIMIT on compound SELECT statements. (check-in: 8560091e user: drh tags: trunk)
12:45
Enhance the MSVC makefile for better debugging symbol support. (check-in: c9bef0f2 user: mistachkin tags: trunk)
12:16
Do not run test script mmapfault.test as part of the "inmemory_journal" permutation test. (check-in: b222b61a user: dan tags: trunk)
11:12
Enhance the MSVC makefile for better debugging symbol support. (Closed-Leaf check-in: c723ec27 user: mistachkin tags: msvcDebug)
2014-01-29
01:46
Make sure that sqlite3SelectDup() initializes the nSelectRow of the duplicate Select object. (check-in: 5bb29b82 user: drh tags: trunk)
2014-01-28
20:36
Fix harmless compiler warnings in the showdb utility program. (check-in: 27c27daa user: drh tags: trunk)
18:53
Fix a potential over-size and hence undefined shift operation. (check-in: 6379b072 user: drh tags: trunk)
17:49
Minor bugfix in main.c so that the library builds with SQLITE_OMIT_WSD defined. (check-in: 5e3b9ecc user: dan tags: trunk)
00:49
Provide hints to the btree layer Next and Previous primitives to let them know if they can be no-ops if the underlying index is unique. (Leaf check-in: a2c347fa user: drh tags: branch-3.8.2)
2014-01-27
16:35
Fix a couple of problems with new test scripts causing the permutations test to fail. (check-in: 48d736c0 user: dan tags: trunk)
15:02
Update some requirements marks to conform with improvements in the documentation. (check-in: be1acb61 user: drh tags: trunk)
14:19
Fix a problem in pagerfault.test causing an assert() to fail. (check-in: ba8d2d50 user: dan tags: trunk)
13:58
Fix (harmless) duplicate variable declaration. (check-in: 94ed9bc4 user: drh tags: trunk)
08:48
Fix some problems in test scripts. No code changes. (check-in: 08acfc65 user: dan tags: trunk)
2014-01-25
12:16
Fix a problem causing SQLITE_OMIT_COMPOUND_SELECT builds to fail. (check-in: b30db0ac user: dan tags: trunk)
2014-01-24
22:58
Fixes for various clang warnings. (check-in: 87bf6063 user: drh tags: trunk)
20:37
Select collation sequences for ORDER BY expressions attached to recursive CTEs in the same way as they are selected for other compound SELECT statements. (check-in: 9554519c user: dan tags: trunk)
17:03
Fix harmless compiler warnings in the Tcl interface. (check-in: 35bc81f5 user: mistachkin tags: trunk)
16:57
Add test cases for LIMIT and ORDER BY on recursive CTEs. (check-in: 67d6c42d user: dan tags: trunk)
16:36
Use an unsigned integer to accumulate the string hash. Avoids compiler warnings. (check-in: b1824344 user: drh tags: trunk)
15:42
Add a few more CTE test cases to closure.test. (check-in: 1b6405d9 user: drh tags: trunk)
14:37
Add test cases that compare the performance of the transitive_closure virtual table again common table expressions for walking a tree. (check-in: 9a23f020 user: drh tags: trunk)
11:16
Add test cases showing the use of ORDER BY on a recursive query to control depth-first versus breath-first search of a tree. (check-in: 83b0b291 user: drh tags: trunk)
2014-01-23
14:44
Modifications to test files to omit any tests that intentionally access out-of-bounds locations in clang -fsanitize=address builds. (check-in: f4a701d5 user: dan tags: trunk)
2014-01-22
19:23
Avoid an extra seek when inserting records into the epheremal index used to ensure that rows returned by UNION recursive queries are unique. (check-in: 72c4b3f0 user: dan tags: trunk)
18:31
Fix harmless compiler warnings. (check-in: dea2ca6a user: drh tags: trunk)
18:16
Change the WITH RECURSIVE implementation to use a queue instead of a pair of tables. Add support for ORDER BY, LIMIT, and OFFSET on recursive queries. (check-in: b6cea420 user: drh tags: trunk)
18:07
Add support for LIMIT and OFFSET in a recursive query. (Closed-Leaf check-in: 1945484e user: drh tags: cte-via-queue)
17:43
Update the spellfix virtual table to optimize queries of the form "SELECT ... FROM tbl WHERE rowid=?". (check-in: a0ba55ff user: dan tags: trunk)
17:28
Get ORDER BY working for recursive queries. (check-in: 37b343b0 user: drh tags: cte-via-queue)
13:35
Add new SelectDest codes, SRT_Queue and SRT_DistQueue in anticipation of adding ORDER BY support on recursive queries. Factor out the recursive query code generator into a separate procedure. (check-in: 3eb5f9f8 user: drh tags: cte-via-queue)
10:22
Fix a typo in a comment. No changes to code or tests. (check-in: cceacc0e user: dan tags: cte-via-queue)
00:23
Remove an unnecessary parameter from selectInnerLoop(). Clean up comments. (check-in: 5e6c4a55 user: drh tags: cte-via-queue)
2014-01-21
22:25
Change the recursive common table expression algorithm to use a queue instead of a pair of tables. Runs about 25% faster on the sudoku solver query. The OP_SwapCursors opcode is no longer required. The current implementation uses just a fifo, but the plan is to change it into a queue that will support ORDER BY and LIMIT in a recursive query. (check-in: b2671e11 user: drh tags: cte-via-queue)
15:04
Remove the undocumented requirement for applications that use an SQLITE_ENABLE_SQLLOG build to define a sqlite3_init_sqllog() function. (check-in: 5e43bf01 user: dan tags: trunk)
2014-01-20
19:55
In where.c, do not allocate space in sqlite3_index_info structures for the internal WHERE clause "terms" generated to record column equivalencies. Fix for ticket [1a1a194d1e5f8]. (check-in: 7d9e2218 user: dan tags: trunk)
18:25
Handle a few obscure problems that could manifest if a database corrupted in a certain way was written by a connection in the middle of a SELECT statement on the same db. (check-in: eba8a564 user: dan tags: trunk)
14:58
Remove an unused #define and add an assert(), both associated with WITH logic. (check-in: a06235e0 user: drh tags: trunk)
14:17
Do not run the tests in with2.test with SQLITE_OMIT_CTE builds. (check-in: 8a973912 user: dan tags: trunk)
2014-01-18
18:33
Add a sudoku solver to the recursive query tests in with1.test. (check-in: 679eff87 user: drh tags: trunk)
15:59
Add extra test cases. No changes to code. (check-in: d38d485e user: dan tags: trunk)
15:22
Add asserts() for a couple of unreachable conditions. Add the Mandelbrot Set query as a test case. (check-in: 2ad4583c user: drh tags: trunk)
08:27
Avoid spurious "no such table" errors in statements of the form "INSERT INTO tbl WITH xxx AS (...) SELECT * FROM xxx". (check-in: cccff8a0 user: dan tags: trunk)
2014-01-17
20:36
Add extra tests to with2.test. (check-in: eecc325a user: dan tags: trunk)
18:34
Minor simplification of error message text for a couple of errors associated with WITH clause processing. (check-in: 2031004d user: drh tags: trunk)
17:40
Resolve table names within CTEs in the context in which the CTE is declared, not the context in which it is used. (check-in: a7323838 user: dan tags: trunk)
16:19
Add tests that verify that keywords WITH, WITHOUT, and RECURSIVE can still be used as table and column names. (check-in: 9ca18a01 user: drh tags: trunk)
15:27
Fix a compiler warning in selectPopWith(). (check-in: c8eb1163 user: drh tags: trunk)
15:15
Add support for common table expressions (WITH clauses). (check-in: 0171e3bb user: dan tags: trunk)
14:59
Fix some problems to do with WITH clauses and name resolution. (Closed-Leaf check-in: 6a549187 user: dan tags: common-table-expr)
11:48
Remove some code from resolve.c that was only required for recursive cte references in sub-queries. Also a stray "finish_test" command in pagerfault.test. (check-in: f68c6c4d user: dan tags: common-table-expr)
2014-01-16
22:40
Add the ability for the authorizer callback to disallow recursive queries. (check-in: 9efc120a user: drh tags: common-table-expr)
21:59
Tweaks to error message text. (check-in: 090a77d9 user: drh tags: common-table-expr)
21:02
Improve the error messages used to report illegal recursive cte references. (check-in: 54eee9fe user: dan tags: common-table-expr)
18:34
Allow only a single recursive reference in a recursive CTE. Also require that this reference is not part of a sub-query. (check-in: a296b733 user: dan tags: common-table-expr)
15:31
Always use available indices to optimize LIKE operators even if the pattern of the LIKE operator has a COLLATE modifier. This fixes an ineffiency that was introduced into 3.7.15 by check-in [8542e6180d4] on 2012-12-08. (check-in: 16bd5478 user: drh tags: trunk)
10:58
Disable the flattening optimization if the parent query is the recursive part of a recursive CTE and the sub-query is a compound query. (check-in: 6bfa387e user: dan tags: common-table-expr)
04:37
Merge trunk changes. Fix a possible NULL-pointer deference in WITH clause name resolution. (check-in: 7f953b56 user: drh tags: common-table-expr)
2014-01-15
20:10
Remove an ALWAYS() that is no longer always true. (check-in: c95823cd user: drh tags: common-table-expr)
19:42
Fixes so that SQLITE_OMIT_CTE builds work. (check-in: 3908e2ea user: dan tags: common-table-expr)
18:35
Further comments on WITH-clause processing routines in select.c. (check-in: c948384d user: drh tags: common-table-expr)
18:23
Add a header comment to the searchWith() routine. (check-in: d9ae0f5d user: drh tags: common-table-expr)
18:21
Disable automatic indices on recursive CTE references. (check-in: 28aa6db8 user: dan tags: common-table-expr)
18:12
When resolving names, consider a reference to a recursive CTE column as equivalent to a reference to the outermost name-context. This ensures that correlated sub-queries are correctly identified as such. (check-in: 61be2da0 user: dan tags: common-table-expr)
15:27
Return an error if a CTE specifies a different number of columns than its SELECT statement returns. (check-in: 9a514b50 user: dan tags: common-table-expr)
14:40
Don't try to verify the schema of transient table (such as generated inside a WITH clause) when generating code for "IN table" operators. (check-in: 860aa936 user: drh tags: common-table-expr)
14:17
Disable the flattening optimization if the sub-query is a recursive CTE. (check-in: 9472f6d8 user: dan tags: common-table-expr)
02:40
Use the user-supplied table name in WITH RECURSIVE tables as the internal name of the table and the name of the table in VDBE comments. (check-in: a2933023 user: drh tags: common-table-expr)
2014-01-14
20:14
Add code to handle recursive CTEs. (check-in: a5c2a54a user: dan tags: common-table-expr)
10:17
Fix harmless compiler warning in LEMON. (check-in: f61a7058 user: mistachkin tags: trunk)
10:17
For the Win32 VFS, defining winShmMutexHeld should be controlled by NDEBUG, not SQLITE_DEBUG. (check-in: 1e131094 user: mistachkin tags: trunk)
2014-01-13
20:38
In the command-line shell, defend against a NULL-pointer dereference in the case where sqlite3_column_name() returns NULL (as might happen following an OOM error). (check-in: ac15455a user: drh tags: trunk)
20:32
For statements of just an unadorned VALUES clause, assign column names as "columnN" for increasing whole numbers N. (check-in: 260587d2 user: drh tags: trunk)
16:36
Fix some memory leaks and crashes that could follow an OOM condition during WITH clause parsing. (check-in: 8839850c user: dan tags: common-table-expr)
15:12
Add code to handle non-recursive CTEs in the same way as SQL views. (check-in: a26f399b user: dan tags: common-table-expr)
2014-01-11
19:19
Update the parser so that sub-queries and CTEs may have WITH clauses. (check-in: 704d3931 user: dan tags: common-table-expr)
13:22
Parse common table expressions. But do not do anything with them (yet). (check-in: da98b720 user: drh tags: common-table-expr)
12:52
In LEMON, limit the size of the grammar file to 100MB. This ensures that the program will never experience integer overflow. To be doubly sure, use calloc() instead of malloc() when allocating arrays. (check-in: 29ba458d user: drh tags: trunk)
03:54
Optimizations to the SQL language grammar that result in a small size reduction and speed increase. (check-in: cb5d1f83 user: drh tags: trunk)
03:27
Add the "%token_class" directive to the LEMON parser generator. This opens up the possibility of simplifying the parser. Also remove all calls to sprintf(), strcpy(), and strcat() from LEMON to avoid compiler warnings on OpenBSD. (Aside: It is this change to avoid harmless compiler warnings that was the cause of the reason spat of bugs.) (check-in: 8eb48c04 user: drh tags: trunk)
03:06
In LEMON, fix a bug in the text formatter introduced by the previous commit. Also add the new "%token_class" directive for defining symbolic names that stand any one of a collection of tokens. (Closed-Leaf check-in: da7890ca user: drh tags: lemon-updates)
2014-01-10
23:21
Do not use sprintf(), strcpy() or strcat() in the implementation of the lemon parser generator tool, to avoid compiler warnings in OpenBSD. (check-in: e43c522d user: drh tags: lemon-updates)
20:51
Remove unused structure definition from parse.y. (check-in: 7f1e7ae3 user: drh tags: trunk)
20:46
Allow a VALUES clause to be used any place that a SELECT statement can be used. (check-in: c9ea7d19 user: drh tags: trunk)
20:38
Fix CREATE TABLE ... AS so that it works with column names that are empty strings. (check-in: 632045f2 user: drh tags: trunk)
16:40
Fix another harmless compiler warning in unixUnfetch(). (check-in: 0484549b user: dan tags: trunk)
2014-01-09
13:39
Fix harmless compiler warning in unixUnfetch(). (check-in: 618f248f user: drh tags: trunk)
2014-01-04
20:00
Fix an typo that breaks the build when SQLITE_ENABLE_TREE_EXPLAIN is defined. (check-in: f461e2b3 user: drh tags: trunk)
19:58
Add the usual "fts3" prefix to new static method setEstimatedRows() in fts3.c. This fixes a problem when compiling the amalgamation, as the r-tree module also contains a static method named setEstimatedRows. (check-in: d6fcfc88 user: dan tags: trunk)
19:27
Avoid redundant register loads during index key generation when doing a DELETE or INTEGRITY_CHECK on a table with multiple indices. (check-in: 8f6e6149 user: drh tags: trunk)
16:49
Omit OP_Close operations that occur immediately prior to OP_Halt and which cannot be jumped over. (check-in: 874b7e99 user: drh tags: trunk)
15:17
Improvements to the column-cache for nested AND/OR operators. (check-in: 4e725f53 user: drh tags: trunk)
14:46
Have FTS assign extremely high costs to plans that feature unusable MATCH constraints. This discourages the planner from choosing such plans, which lead to "unable to use function MATCH in the requested context" errors. (check-in: fa8be488 user: dan tags: trunk)
14:42
Instead of having the planner ignore plans with unusable MATCH constraints, have FTS assign extremely high costs to such plans in order to discourage the planner from using them. (Closed-Leaf check-in: 24f84b38 user: dan tags: avoid-unusable-match)
14:16
Have the planner detect cases where a MATCH constraint is applied to a virtual table, and ignore any plans that do not allow the virtual table implementation to implement the MATCH filtering. (check-in: 19f3208b user: dan tags: avoid-unusable-match)
2014-01-03
16:03
Avoid some unnecessary OP_SCopy operations when inserting into a table with multiple indices. (check-in: 429018b1 user: drh tags: trunk)
2014-01-02
21:05
Try to factor constant subcomponents of the WHERE clause out of the loop. (check-in: 9d05777f user: drh tags: trunk)
19:35
Avoid unnecessary affinity transformations when building indices using data from a table. (check-in: 10d85135 user: drh tags: trunk)
17:57
Be more aggressive in optimizing constant conditional expressions. (check-in: b7e39851 user: drh tags: trunk)
2014-01-01
15:18
Try to detect process ID changes due to fork() calls in os_unix.c and reset the PRNG when a process ID change is detected. (check-in: e1eba1fb user: drh tags: trunk)
14:00
Enhance sqlite3_randomness(N,P) such that it resets the internal PRNG if N is less than 1. Subsequent calls to sqlite3_randomness() will reinitialize the internal PRNG by calling the xRandomness() method of the default VFS. (check-in: a221aa82 user: drh tags: trunk)
2013-12-24
12:04
Add -I. to the main.mk makefile for building sqlite3.o and speedtest1. (check-in: cc72c5ae user: drh tags: trunk)
2013-12-23
19:09
Move elements of the Vdbe object that are only used during statement preparation out into the Parse object. (check-in: c289a253 user: drh tags: trunk)
11:33
Remove a stray tab character. (check-in: 25b8a1c9 user: drh tags: trunk)
2013-12-22
22:45
Remove a condition that is always in the logic that handles reading default values for columns. (check-in: 895af097 user: drh tags: trunk)
20:44
Make sure the WhereLoop.aLTerm[] array is large enough when processing the skip-scan optimization. Fix for ticket [520070ec7fbaac]. (check-in: 46d04059 user: drh tags: trunk)
2013-12-21
17:14
Fix speedtest1.c so that in --explain mode it only outputs non-explain text for DDL statements. (check-in: 2d2b3c49 user: drh tags: trunk)
17:07
Avoid compiler warnings by only enabling sqlite3ErrName() when SQLITE_TEST is defined. (check-in: 862228e5 user: drh tags: trunk)
16:06
Fix harmless compiler warnings in FTS4. This involved corrupting Martin Porter's beautifully written and elegant stemmer code, making it a little less beautiful and a little less elegant. Today is a sad day. But the warnings from GCC grow increasingly verbose and irksome with each new release and so something had to be done. (check-in: df056798 user: drh tags: trunk)
15:46
Fix the ".echo on" dot-command of the shell so that it echos comments in addition to SQL statements and dot-commands. Add the --explain option to speedtest1 so that the output can be piped into the command-line shell to show nicely-formated VDBE code for the entire test. (check-in: 96397263 user: drh tags: trunk)
00:04
Add a case to speedtest1.c that demonstrates the need to factor OP_Column operators out of inner loops. (check-in: 69a17336 user: drh tags: trunk)
2013-12-20
18:57
Fix compiler harmless warnings in tclsqlite.c that appeared with GCC 4.8.x. (check-in: d93ae683 user: drh tags: trunk)
18:44
Code simplification in sqlite3GenerateIndexKey() by making use of a subroutine found over in expr.c. (check-in: 0026d335 user: drh tags: trunk)
15:59
Combine adjacent single-register OP_Copy instructions into a single multi-register OP_Copy, where possible. Fix the Synopsis comment for multi-register OP_Copy instructions to show the correct register ranges. (check-in: 2ae22dc0 user: drh tags: trunk)
14:48
Allow any arbitrary expression as the filename in an ATTACH statement, including functions and subqueries. (check-in: df70a1f3 user: drh tags: trunk)
13:11
Simplify the accumulator reset for aggregate query processing so that it uses a single multi-register OP_Null rather than a separate OP_Null for each register. (check-in: 2c7fd9b0 user: drh tags: trunk)
2013-12-19
17:04
Do not inject OOM faults into SQLITE_FCNTL_COMMIT_PHASE_TWO file-control invocations. It causes problems for test scripts. (check-in: 8eb28d23 user: dan tags: trunk)
16:26
Make sure errors encountered while initializing extensions such as FTS4 get reported out from sqlite3_open(). This fixes a bug introduced by check-in [9d347f547e7ba9]. Also remove lots of forgotten "breakpoint" commands left in test scripts over the years. (check-in: ca3fdfd4 user: drh tags: trunk)
14:34
Remove an unneeded column-cache flush in aggregate SELECT and an unreachable branch in the INSERT logic. (check-in: ffa092e1 user: drh tags: trunk)
02:56
Omit an unnecessary OP_Null opcode from UPDATE. (check-in: 72d11133 user: drh tags: trunk)
02:23
Omit one or more pointless instructions that occur in between OP_NoConflict and OP_Halt. (check-in: 61e2f357 user: drh tags: trunk)
2013-12-18
18:44
Remove an unnecessary column-cache flush operation. Add code to trace the column cache when compiled with SQLITE_DEBUG and using PRAGMA vdbe_addoptrace=ON. (check-in: 58704ed1 user: drh tags: trunk)
16:27
Remove an unnecessary column-cache flush. Add another test case to the speedtest1.c program to accentuate the benefit of not flushing the cache at that point. (Closed-Leaf check-in: 97fdfc6b user: drh tags: column-cache-debug)
15:11
Show changes to the column cache when PRAGMA vdbe_addoptrace=ON is set. (check-in: 4c6a659c user: drh tags: column-cache-debug)
2013-12-17
16:32
Add evidence marks and additional test cases for the printf() SQL function. (check-in: 93121d30 user: drh tags: trunk)
16:10
Add the printf() SQL function. (check-in: a1bb62f9 user: drh tags: trunk)
15:58
Fix the formatting of %c in the printf() SQL function. (Closed-Leaf check-in: 3375571a user: drh tags: printf-sql-function)
15:03
Add the printf() SQL function. (check-in: 6db7052e user: drh tags: printf-sql-function)
2013-12-14
13:44
Allow the SQLITE_DETERMINISTIC flag to be ORed into the preferred text encoding of application-defined functions, to mark the function as deterministic. (check-in: 5716fc23 user: drh tags: trunk)
2013-12-13
20:45
Performance optimizations in the pager_write() routine of pager.c. (check-in: bc5febef user: drh tags: trunk)
19:48
Reduce the number of calls to the subjRequiresPage() routine inside of pager. (check-in: e50ff39a user: drh tags: trunk)
19:35
Create and use a new pager interface sqlite3PagerUnrefNotNull() that works just like sqlite3PagerUnref() but guarantees that its argument is not a NULL pointer. (check-in: e00f37e2 user: drh tags: trunk)
18:50
Enhance the pcache1PinPage() routine so that it called much less often and runs much faster in the cases when it is actually called. (check-in: a845779c user: drh tags: trunk)
16:42
Avoid unnecessary calls to sqlite3_free() from within sqlite3VXPrintf(). (check-in: e2a8b280 user: drh tags: trunk)
16:23
Simplication and optimization of error message handling. (check-in: 9d347f54 user: drh tags: trunk)
2013-12-11
15:47
Add the SQLITE_FCNTL_SYNC and SQLITE_FCNTL_COMMIT_PHASETWO file-controls and have the pager call them at appropriate times. This is needed in order to enable ZIPVFS to do multi-file atomic commits. (check-in: 552f94d5 user: drh tags: trunk)
14:17
Merge in the latest trunk changes. (Closed-Leaf check-in: 9ff4dfe1 user: drh tags: zipvfs-multifile-commit)
14:00
Fix a bug in the shell ".import" command: Do not end the field when an escaped double-quote occurs at the end of a CRNL line. (check-in: 5e239ecd user: drh tags: trunk)
12:02
Remove an unreachable conditional inserted by the previous check-in. (check-in: 3e1d55f0 user: drh tags: trunk)
11:03
Have the crash-test infrastructure code in test6.c read and write the 512-byte block containing the pending-byte lock as normal. Earlier versions did not access this part of the file in order to avoid triggering an assert in os_unix.c. But the assert() has since been removed. And not reading/writing this part of the file causes problems for multiplexor tests. (check-in: fdc3f3fa user: dan tags: zipvfs-multifile-commit)
11:00
Fix harmless compiler warnings. (check-in: a7e5fcd6 user: drh tags: trunk)
02:21
Fix harmless compiler warning. (check-in: 2525296d user: mistachkin tags: trunk)
00:59
Do not run the tool/vdbe-compress.tcl script that generates the vdbeExecUnion object that reduces the size of the sqlite3VdbeExec() stack frame unless the SQLITE_SMALL_STACK compile-time option is specified as on of the OPTS in the makefile. The vdbeExecUnion object gets in the way of C-compiler optimizer and results in slightly slower code. (check-in: 4d078147 user: drh tags: trunk)
2013-12-10
21:38
Avoid unnecessary calls to sqlite3VdbeSerialType() from within sqlite3VdbeSerialPut(). (check-in: 079c04a5 user: drh tags: trunk)
20:53
In the OP_MakeRecord opcode, factor out affinity changes into separate loop, for a slight performance advantage. (check-in: 1c6ee9b8 user: drh tags: trunk)
19:49
Simplify and improve the performance of the sqlite3VdbeMemGrow() routine. (check-in: 48ecf187 user: drh tags: trunk)
17:34
Use SQLITE_FCNTL_SYNC instead of SQLITE_FCNTL_SYNC_OMITTED. Add documentation in for FCNTL_SYNC and FCNTL_COMMIT_PHASETWO. (check-in: 46231af9 user: dan tags: zipvfs-multifile-commit)
16:35
Merge changes from the trunk. (check-in: 3ee736a3 user: dan tags: zipvfs-multifile-commit)
16:27
Fix handling of errors returned by the SQLITE_FCNTL_OMIT_SYNCED file-control. (check-in: d9a5f44f user: dan tags: zipvfs-multifile-commit)
2013-12-09
23:17
Simplifications to the OP_MakeRecord opcode and the sqlite3VdbeSerialPut() helper function. (check-in: 7277a769 user: drh tags: trunk)
21:48
Correct the VFS name as reported by the file control when explicitly using the 'win32-longpath' VFS. (check-in: c43b59da user: mistachkin tags: trunk)
21:06
Reduce the number of times that OP_Column calls sqlite3VdbeMemMakeWriteable(). (check-in: 6b518635 user: drh tags: trunk)
20:43
Simplify the sqlite3BtreeKeyFetch() and sqlite3BtreeDataFetch() interfaces to the storage engine. (check-in: bf975985 user: drh tags: trunk)
20:42
Modify the way some internal file-controls are invoked. In order to support multi-file transactions in the zipvfs extension. (check-in: 32fb1784 user: dan tags: zipvfs-multifile-commit)
19:25
Minor performance optimizations in pager.c. (check-in: ba9eef5f user: drh tags: trunk)
19:03
Performance optimizations for sqlite3VXPrintf(). (check-in: 9227ad48 user: drh tags: trunk)
12:24
Fix an incorrect test number in the output of the speedtest1.c program. No changes to the test algorithms. (check-in: fbfc075a user: drh tags: trunk)
03:07
Avoid unnecessary (no-op) calls to sqlite3DbFree() from sqlite3VdbeMemRelease(). (check-in: 2d6dd7c2 user: drh tags: trunk)
02:32
Use memmove() rather than a home-made copy loop in insertCell() too. (check-in: a3d796b1 user: drh tags: trunk)
01:58
Use memmove() rather than a home-made copy loop in dropCell() of btree.c, for a size reduction and performance improvement. (check-in: 78e17068 user: drh tags: trunk)
01:04
Avoid unnecessary no-op calls from getAndInitPage() to btreeInitPage() in the btree.c logic. (check-in: 81f5ae13 user: drh tags: trunk)
00:47
Use putVarint32() instead of putVarint() for a quantity that can never exceed 2GiB - 1. (check-in: 6996fb34 user: drh tags: trunk)
2013-12-08
23:33
Another simplification to the OP_MakeRecord opcode, making it slightly faster and very slightly smaller. (check-in: f2f5a3ce user: drh tags: trunk)
22:59
Avoid unnecessary calls to sqlite3VarintLen() from the OP_MakeRecord opcode. (check-in: 7a234fc3 user: drh tags: trunk)
19:54
Interchange two conditions in an "if" statment in sqlite3PagerAcquire() for very slight (0.06%) overall performance increase. (check-in: fbcc1a3e user: drh tags: trunk)
2013-12-07
17:01
Increase the version number to 3.8.3. (check-in: 23d00f22 user: drh tags: trunk)
16:56
At the start of each journaled write transaction, check to see if the database file has been moved, and if it has refuse to start the transaction, returning an SQLITE_READONLY_DBMOVED error code. Writing to a moved or renamed database is still allowed when journal_mode is OFF or MEMORY. (check-in: 369a23e0 user: drh tags: trunk)
16:45
Back out the new device capability. The determination of whether or not a file has moved is now done strictly using a file-control. (Closed-Leaf check-in: 9c59f5af user: drh tags: detect-moved-db)
12:29
Actually look at i-node numbers to determine whether or not the database file has moved. (check-in: 2b1884dc user: drh tags: detect-moved-db)
2013-12-06
23:25
Performance optimization to the moveToRoot() subroutine in btree.c. (check-in: b5842a70 user: drh tags: trunk)
22:45
Use memcmp() instead of the BINARY collating function where possible, for a performance boost. (check-in: c5a3a1af user: drh tags: trunk)
22:44
Remove some commented-out code from sqlite3BtreeMovetoUnpacked() to try to make it more readable. (check-in: 2d62d113 user: drh tags: trunk)
19:58
Add the SQLITE_READONLY_DBMOVED error code to the sqlite3ErrName() function. (check-in: 7789f801 user: mistachkin tags: detect-moved-db)
17:23
Only error out on a database file move when attempting to start a write transaction. Assume read transactions are still safe. And make the error SQLITE_READONLY_DBMOVED instead of SQLITE_IOERR_NODB. (check-in: 28348f2a user: drh tags: detect-moved-db)
15:37
Add code to detect if the database file is moved or deleted out from under SQLite and return an SQLITE_IOERR_NODB. (check-in: 8759a8e4 user: drh tags: detect-moved-db)
14:53
Version 3.8.2 (check-in: 27392118 user: dan tags: trunk, release, version-3.8.2)
2013-12-05
17:12
Fix harmless compiler warnings and improve the MSVC makefile. (check-in: c6325670 user: drh tags: trunk)
16:41
Fix two potential (and apparently harmless) shift overflows discovered by the -fcatch-undefined-behavior option of clang. (check-in: e19eead8 user: drh tags: trunk)
2013-12-03
23:33
Make use of the CC nmake macro even when cross-compiling (with MSVC). (Closed-Leaf check-in: aae7b30e user: mistachkin tags: memTests)
22:33
Fix harmless compiler warnings. (check-in: a12d214e user: mistachkin tags: memTests)
22:32
Add memory subsystem related defines to the compile-time options list. (check-in: 52a44146 user: mistachkin tags: memTests)
19:49
Remove a branch in STAT4 logic that is no longer reachable after the previous change. (check-in: eca7d3f1 user: drh tags: trunk)
19:16
Fix a possible (and probably harmless) uninitialized variable in STAT3/4. (check-in: 33ad4f91 user: drh tags: trunk)
18:26
Fix an alignment problem in the stat3/stat4 code affecting 32-bit platforms. (check-in: 14f9bc79 user: dan tags: trunk)
17:09
Fix a typo in fts3varint.test preventing the valgrind permutation test from running. (check-in: b654a4ec user: dan tags: trunk)
10:35
Modify test file conflict2.test so that it works with the "inmemory_journal" permutation. (check-in: e4164fd8 user: dan tags: trunk)
10:14
Remove an unnecessary branch from the UPDATE logic - one that was also unreachable except following an OOM on x64. (check-in: 72f97277 user: drh tags: trunk)
09:49
Add a "database_may_be_corrupt" directive to test file fuzz3.test. Reformat an assert() statement in vdbeaux.c to make its intent clearer. (check-in: 9d8a0e13 user: dan tags: trunk)
02:52
Change some unreachable test conditions to NEVER(). (check-in: 7d99858b user: drh tags: trunk)
00:11
Fix a harmless compiler warning on MacOS. (check-in: 74328de1 user: drh tags: trunk)
2013-12-02
21:25
Another #if SQLITE_VERSION_NUMBER macro in speedtest1.c for compatibility with older versions of SQLite. (check-in: bc8eacc7 user: drh tags: trunk)
01:24
Still more #if SQLITE_VERSION_NUMBER macros in test/speedtest1.c to enable compilation against older versions of SQLite. (check-in: 4b20cf42 user: drh tags: trunk)
2013-12-01
18:10
Add some #if SQLITE_VERSION_NUMBER macros to test/speedtest1.c in order to make it compatible with older versions of SQLite so that it can be used for historical speed comparisons. (check-in: a9e1627a user: drh tags: trunk)
01:18
Fix typos in the header comment on the sqlite3Atoi64() routine. (check-in: c85e0c54 user: drh tags: trunk)
2013-11-30
12:49
Detect a corrupt UnpackedRecord and return SQLITE_CORRUPT prior to calling sqlite3BtreeMovetoUnpacked(). (check-in: 55ec474d user: drh tags: trunk)
2013-11-29
15:39
Change the name of the CORRUPTIBLE macro to CORRUPT_DB. (check-in: f865be10 user: drh tags: trunk)
15:06
Add a new sqlite3_test_control() that indicates that database files are always well-formed. Use this during testing to enable assert() statements that prove conditions that are always true for well-formed databases. (check-in: 15e4f63d user: drh tags: trunk)
2013-11-28
19:28
Update a few test cases to account for the new error message formats. (check-in: 65a5bce3 user: dan tags: trunk)
14:14
Remove an assert() condition that may not be true if the database file is corrupt. Update a test case in corruptC.test. (check-in: 0bcf7551 user: dan tags: trunk)
06:17
Fix a test case in temptrigger.test so that it works in auto-vacuum mode. (check-in: c3b7a0e6 user: dan tags: trunk)
2013-11-27
21:07
Remove unnecessary local variables from sqlite3VdbeExec() in order to reduce stack-space requirements of that routine. (check-in: 81891288 user: drh tags: trunk)
19:17
Update documentation of sqlite3_column() for clarity. Update evidence marks on test cases. (check-in: ec2d47a1 user: drh tags: trunk)
18:00
Fix spelling typo in speedtest1.exe. (check-in: ae90300e user: mistachkin tags: trunk)
14:50
Fix some harmless compiler warnings in speedtest1.exe. (check-in: c75f561f user: drh tags: trunk)
13:48
Additional test cases for skip-scan. (check-in: ce70803f user: drh tags: trunk)
13:24
Make sure the colWidth array is correctly initialized in the ".explain" command of the shell. (check-in: ceebcdca user: drh tags: trunk)
04:22
Lower the threshold for using skip-scan from 50 to 18, based on experiments that show that 18 is the approximate break-even point for a variety of schemas. (check-in: 83c0bb99 user: drh tags: trunk)
04:00
Avoid using the GetVersionEx functions if they are considered deprecated. (check-in: afdca299 user: mistachkin tags: trunk)
03:01
Avoid using the GetVersionEx functions if they are considered deprecated. (Closed-Leaf check-in: 0ea9e472 user: mistachkin tags: vs2013)
01:23
Add additional test cases for skip-scan. (check-in: 1ae4915d user: drh tags: trunk)
00:45
Add additional test cases and requirements evidence marks for WITHOUT ROWID. (check-in: b408d788 user: drh tags: trunk)
2013-11-26
23:27
Make sure the update hook is not invoked for WITHOUT ROWID tables, as the documentation specifies. This bug was found while adding requirements marks, so a few extraneous requirements marks are included in this check-in. (check-in: 0978bac6 user: drh tags: trunk)
22:46
Add requirements test cases for determining when an expression is true and when it is false. (check-in: 838654e5 user: drh tags: trunk)
21:18
Changing the CAST behavior of REAL values actually changed a documented requirement. So we also have to change the requirement evidence text to match. (check-in: d84aa44e user: drh tags: trunk)
18:22
Reduce the amount of code used to implement OP_SeekGe and similar. (check-in: 8b12a15a user: dan tags: trunk)
16:51
Fix a possible NULL pointer deference in the wordcount test program. (check-in: 6f91dca0 user: drh tags: trunk)
16:48
Change tclsqlite3.c so that it never invokes ctype macros with signed character arguments. (check-in: c07caabf user: drh tags: trunk)
16:20
Do not try to run the atof1.test test script on ARM hardware which lacks the "long double" type. (check-in: fafca560 user: drh tags: trunk)
15:45
Change the REAL-to-INTEGER casting behavior so that if the REAL value is greater than 9223372036854775807.0 then it is cast to the latest possible integer, 9223372036854775807. This is sensible and the way most platforms work in hardware. The former behavior was that oversize REALs would be cast to the smallest possible integer, -9223372036854775808, which is the way Intel hardware works. (check-in: 6f53fc71 user: drh tags: trunk)
01:13
Fix comment. (check-in: 8364af39 user: mistachkin tags: winHdr)
01:00
Further work on Windows header file reform. (check-in: 540f5525 user: mistachkin tags: winHdr)
00:33
Merge updates from trunk. (check-in: c5ab4378 user: mistachkin tags: winHdr)
00:28
Better support for UTF-8 paths on Cygwin. (check-in: 9954327c user: mistachkin tags: trunk)
2013-11-25
23:42
Add SQLITE_CONFIG_WIN32_HEAPSIZE option to configure the maximum isolated heap size on Windows. (check-in: 914e6c9d user: mistachkin tags: trunk)
22:24
Change a while-loop into a do-loop in sqlite3VdbeRecordCompare() and add an assert() to verify that the do-loop really is appropriate. This gives about a 10% performance boost in that routine, or a 0.9% boost overall. (check-in: 011a6be4 user: drh tags: trunk)
21:49
Clarify docs for the SQLITE_CONFIG_WIN32_HEAPSIZE option. (Closed-Leaf check-in: 51e87607 user: mistachkin tags: winHeapSize)
21:41
Remove a NEVER() from a branch that is now reachable during OOM faults. (check-in: 18bdcb05 user: drh tags: trunk)
20:50
Optimizations to the sqlite3BtreeMovetoUnpacked() routine in storage engine making it about 17.8% faster, which in turn makes SQLite over 1.2% faster overall. (check-in: 032e8993 user: drh tags: trunk)
20:14
Return an SQLITE_CORRUPT error if the content size field of a table record extends off the end of a page. (Closed-Leaf check-in: b48c4e40 user: drh tags: btree-optimization)
17:38
Uses shifts rather than division for arithmetic on the cell indices, since those indices are always non-negative. (check-in: 5bf2a3fe user: drh tags: btree-optimization)
16:52
Optimize the skipping of the payload size field when doing a binary search for a rowid. (check-in: 55e5bfa2 user: drh tags: btree-optimization)
16:23
Arrange for sqlite3BtreeMovetoUnpacked() to always leave the cursor cell parse cache invalidated. This fixes issues with previous check-ins on this branch and also runs faster. (check-in: a7467560 user: drh tags: btree-optimization)
15:01
More optimizations to sqlite3BtreeMovetoUnpacked(). But there are failures in TH3. Committing this intermediate state to facilitate bisecting. (check-in: f80497be user: drh tags: btree-optimization)
14:10
More improvements to sqlite3BtreeMovetoUnpacked() performance. (check-in: 88680698 user: drh tags: btree-optimization)
09:37
Correct line-endings in the new header file. (check-in: 94219b9f user: mistachkin tags: winHdr)
09:36
Initial work on isolating usage of the Windows header file. (check-in: 0d42c6b8 user: mistachkin tags: winHdr)
02:38
Performance improvements in sqlite3BtreeMovetoUnpacked(). (check-in: d0fb7ace user: drh tags: btree-optimization)
2013-11-24
23:18
Better support for UTF-8 paths on Cygwin. (Closed-Leaf check-in: 484162b6 user: mistachkin tags: cygUtf8)
01:14
Add the --scratch parameter to speedtest1. Improved error messages when misconfiguring memory parameters in speedtest1. (check-in: 8f3c767a user: drh tags: trunk)
00:46
The MEMSYS5 algorithm does not have to return the block with the lowest address. Any block of the appropriate size will do. Use the first block found on the freelist for the appropriate size for a performance improvement. (check-in: 12e612e8 user: drh tags: trunk)
2013-11-23
22:45
A much simpler fix is to simply change MEMSYS5 so that it takes any free block of the appropriate size (the first on the list of free blocks) rather than searching for the one with the smallest address. This is also faster than using the min-heap algorithm. Need to research to verify that the allocator still satisfies the Robson proof, however. (Closed-Leaf check-in: 8191b512 user: drh tags: memsys5-performance)
21:29
Add newlines at the end of some error messages in speedtest1. (check-in: 6b98f0af user: drh tags: trunk)
11:45
Report errors from sqlite3_exec() and sqlite3_config() in speedtest1. Fix a bug in the main testing logic that was found by these error reports. (check-in: 659f1a98 user: drh tags: trunk)
04:32
Fix the order of parameters to SQLITE_CONFIG_PAGECACHE in the speedtest1.exe program. (check-in: dbe85ef6 user: drh tags: trunk)
04:22
Adjust MSVC makefile to avoid using forward slashes in file names. (check-in: facf6dea user: mistachkin tags: trunk)
04:16
Add the "speedtest1.exe" test program. (check-in: fb6f0c6d user: drh tags: trunk)
00:27
Add experimental sqlite3_config option to control the native Win32 heap size. (check-in: f09f11e9 user: mistachkin tags: winHeapSize)
2013-11-22
21:32
Fix harmless compiler warning. (check-in: f336c18f user: mistachkin tags: trunk)
00:49
Minor correction to the batch build tool for MSVC. (check-in: 22144c9d user: mistachkin tags: trunk)
2013-11-21
23:37
Fix a harmless clang warning in the command-line shell. (check-in: 3d47a556 user: drh tags: trunk)
22:02
Slight change to the --timer output on wordcount for better display on windows: Avoid showing the full pathname of the executable. (check-in: b9e047b9 user: drh tags: trunk)
21:59
Changes some offset and amount parameters from "int" to "u32" to avoid harmless signed/unsigned comparison warnings. (check-in: 4e8c5d07 user: drh tags: trunk)
21:40
Modify wordcount so that timer information appears on standard error instead of standard output. Rename the run-wordcount.bash script to run-wordcount.sh and simplify it so that it stands a better chance of running on non-GNU systems. (check-in: 586c11ed user: drh tags: trunk)
21:23
Do not reuse factored constants that might have had their encodings changed. (check-in: 487f2036 user: drh tags: trunk)
20:48
Fix the code generator to honor turning off constant expression factoring. (check-in: 88262266 user: drh tags: trunk)
19:27
Add the --timer option to the wordcount test program. (check-in: a89fdf87 user: drh tags: trunk)
19:05
Remove a test from sqlite3VdbeMemFromBtree() which was unnecessary, and after the recent OP_Column refactoring, unreachable. (check-in: 23667f3b user: drh tags: trunk)
17:24
Make sure the OP_Next and OP_NextIfOpen opcodes are numbered close together for efficiency in switch() statements. OP_Prev and OP_PrevIfOpen too. (check-in: d4ccf0f5 user: drh tags: trunk)
16:08
When one or more arguments to a function are constants, try to factor out just those arguments into initialization code. (check-in: 50d350ab user: drh tags: trunk)
14:44
Remove the obsolete TK_CONST_FUNC token type. (check-in: 9b4217f0 user: drh tags: trunk)
14:33
Add the ability to factor constant functions out of inner loops. But do not factor out non-constant functions, like random(). (check-in: 1b0f779e user: drh tags: trunk)
04:18
Another improvement to OP_Function and an improvement to OP_Move. (check-in: 70b056fb user: drh tags: trunk)
03:43
A simple change to the OP_Function opcode improves overall performance by about 0.5%. (check-in: b890eefd user: drh tags: trunk)
03:12
Performance optimization to the OP_Next and OP_Prev opcodes. (check-in: ecaac28a user: drh tags: trunk)
01:33
Refactor the OP_Column opcode to make it clearer and easier to maintain. Overall, performance tests show about a 1% speed increase with this change. (check-in: 972881c6 user: drh tags: trunk)
01:04
Reduce the size of VdbeCursor again, this time without a performance hit. (Closed-Leaf check-in: 93393993 user: drh tags: OP_Column-refactor)
00:10
Unpack some fields, adding some space back to the VdbeCursor object, in order to help the code to run a little faster. (check-in: f8d5efcd user: drh tags: OP_Column-refactor)
2013-11-20
21:51
Reduce the size of the VdbeCursor object from 144 to 120 bytes. (check-in: 5f9d5068 user: drh tags: OP_Column-refactor)
20:58
Improved comments on the OP_Column changes. Optimize out loading of overflow pages for content with zero length. Add test cases for the latter. (check-in: 0e05679d user: drh tags: OP_Column-refactor)
19:28
Further performance tweaks to OP_Column. (check-in: 0e3f5df6 user: drh tags: OP_Column-refactor)
17:25
Refactoring the OP_Column opcode for improved performance and maintainability. (check-in: 7c914e39 user: drh tags: OP_Column-refactor)
02:53
Simplifications to the VdbeCursor object. (check-in: 5562cd34 user: drh tags: trunk)
00:59
Performance improvement for the OP_MustBeInt opcode in the VDBE. (check-in: 96a65388 user: drh tags: trunk)
2013-11-19
18:17
Fix a harmless MSVC compiler warning. (check-in: 6cc023bb user: drh tags: trunk)
13:55
Minor performance improvement to sqlite3SerialTypeGet(). (check-in: 17e8524f user: drh tags: trunk)
12:33
Change Noop-comments in where.c into Module-comments, so that they are omitting without SQLITE_ENABLE_MODULE_COMMENTS. (check-in: 3e577f40 user: drh tags: trunk)
02:34
Avoid seeking on the main data table during the first loop of an UPDATE if an index is sufficient to check the WHERE clause. (check-in: 57158d9d user: drh tags: trunk)
00:31
Fix an requirement mark in a test script so that it matches the typo-corrected requirement. No changes to code. (check-in: 072412d5 user: drh tags: trunk)
2013-11-18
19:32
Add comments identifing where the skip-scan option is decided in the query planner, to aid in tuning that decision. No changes to code. (check-in: e9df04ce user: drh tags: trunk)
18:48
Fix documentation typos. No changes to code. (check-in: 7caeb09c user: drh tags: trunk)
11:20
Fix harmless compiler warnings from clang scan-build. (check-in: 8d002740 user: drh tags: trunk)
08:41
Fix a problem with the shell tool EXPLAIN indentation code and VDBE sub-programs. (check-in: 9c8d6856 user: dan tags: trunk)
03:11
Enable the ONEPASS optimization for DELETE, for both rowid and WITHOUT ROWID tables. (check-in: 44a07afd user: drh tags: trunk)
2013-11-17
02:42
Make sure one-pass DELETE for WITHOUT ROWID tables correctly positions the PRIMARY KEY cursor. Make the same fix for UPDATE. (Closed-Leaf check-in: 6bd5750b user: drh tags: optimize-delete)
2013-11-16
23:16
Fix a couple of minor problems with the new delete logic. (check-in: a11243f8 user: drh tags: optimize-delete)
23:03
Fix an OOM-recovery problem in the DELETE code generator. (check-in: dc7be158 user: drh tags: optimize-delete)
22:48
Combine the rowid and WITHOUT ROWID paths for DELETE into a single path. (check-in: c4734b88 user: drh tags: optimize-delete)
20:45
The one-pass optimization is now working for DELETE on WITHOUT ROWID tables. (check-in: e4d220a3 user: drh tags: optimize-delete)
20:13
Enhance the DELETE logic so that it can make use of WHERE_ONEPASS_DESIRED for rowid tables. (check-in: 8f479a72 user: drh tags: optimize-delete)
15:35
Fully constraint the ORDER BY on the top-10 line of the --summary output from the wordcount test program. Add the run-wordcount.bash script for running wordcount in various configurations. (check-in: 7edf39eb user: drh tags: trunk)
14:03
Avoid unnecessary OP_IfNull checks when doing a range query where there is a constraint on the lower bound of the range. (check-in: de08a7e7 user: drh tags: trunk)
13:55
Simplification and performance improvement to the logic that factors constant expressions ouf of inner loops. (check-in: ee9353fd user: drh tags: trunk)
12:56
Fix testcase misc7-16 so that it works with the new UNIQUE constraint error message format. (check-in: c7f2ed9f user: drh tags: trunk)
2013-11-15
20:06
Add ALWAYS and NEVER macros to currently unreachable but important branches in sqlite3ExprCompare(). (Closed-Leaf check-in: cee835fe user: drh tags: expr-codegen-enhancement)
19:00
Merge the operator comment fixes from trunk. (check-in: 9f14f55c user: drh tags: expr-codegen-enhancement)
18:58
Fix comments on the OP_Divide and OP_Remainder operators, especially the "Synopsis:" comment, so that they agree with the actual implementation. (check-in: cc17f1f0 user: drh tags: trunk)
18:15
Changes to make the new constant expression factoring logic more general and more testable. (check-in: d10fb49a user: drh tags: expr-codegen-enhancement)
16:48
Add test cases for INSERT INTO ... DEFAULT VALUES on tables with numeric constants in CHECK constraints. (check-in: 79ec485b user: drh tags: expr-codegen-enhancement)
15:52
Improvements to the Expr comparison routine to make it more general. Improvements to unary-minus code generation so that it can make use of a global constant register with a zero value. (check-in: 835be656 user: drh tags: expr-codegen-enhancement)
13:12
Add the --query option to the wordcount test program. (check-in: 5960d11e user: drh tags: trunk)
12:41
Simplify the range scan code generate while also avoiding an unnecessary OP_Affinity opcode. (check-in: 372686bf user: drh tags: expr-codegen-enhancement)
03:30
Merge EXPLAIN fixes from trunk. (check-in: cd579727 user: drh tags: expr-codegen-enhancement)
03:21
Fix a typo in the "synopsis" for the OP_Lt opcode that causes an incorrect comment to be added to EXPLAIN output. (check-in: d99a30a2 user: drh tags: trunk)
03:16
Another adjustment to the EXPLAIN indentation logic, in order to deal with the sorter loop on a CREATE INDEX statement. (check-in: cbe85cc2 user: drh tags: trunk)
01:10
Rework the logic that factors constant expressions out of inner loops, making it both simpler and faster. (check-in: 8dc5c76c user: drh tags: expr-codegen-enhancement)
2013-11-14
23:59
Adjust the command-line shell EXPLAIN indentation logic to handle the second loop of an UPDATE that reads out a RowSet. (check-in: ea141a9b user: drh tags: trunk)
19:34
Remove an unused local variable. (check-in: 10d59226 user: drh tags: trunk)
00:09
Simplification to the progress callback check. One branch removed. (check-in: 24ef1654 user: drh tags: trunk)
2013-11-13
23:48
Make sure the progress callback is invoked prior to an SQLITE_ROW return if it is overdue to be called. (check-in: 21f59b04 user: drh tags: trunk)
20:46
Merge the skip-scan enhancement into trunk. (check-in: b0bb975c user: drh tags: trunk)
19:01
Import the "PRAGMA vdbe_eqp" enhancement and the enhanced EXPLAIN formatting the shell from trunk. Fix a bug in skip-scan and add a test case to prevent a regression. (Closed-Leaf check-in: f668616a user: drh tags: skip-scan)
18:35
In the shell tool, if an "EXPLAIN" command is executed in ".explain on" mode, attempt to automatically indent the bodies of loops in the output VDBE program. (check-in: e7d34ec6 user: dan tags: trunk)
17:58
Add the "PRAGMA vdbe_eqp" command, only available with SQLITE_DEBUG. Simplify some of the other debugging logic. (check-in: 8ce33f4c user: drh tags: trunk)
17:24
Add VDBE comments to the beginning and end of skip-scan loops. (check-in: 0c85d93b user: drh tags: skip-scan)
16:58
Improve the way that skip-scan loops are constructued. Add test cases. Improved the scoring of skip-scan loops. (check-in: 5e75ab93 user: drh tags: skip-scan)
15:32
Add test cases for skip-scan. Enhance "do_test" so that if the expected result is of the form "/*..*/" or "~/*..*/" it treats the expected result as a glob pattern rather than as a regular expression. Fix a bug in ANALYZE result loading associated with WITHOUT ROWID tables. (check-in: d3e6e9b2 user: drh tags: skip-scan)
12:27
Add the ability to use an index even if the left-most columns of the index are unconstrainted, provided that the left-most columns have few distinct values. (check-in: 27dd5993 user: drh tags: skip-scan)
08:55
Avoid an unnecessary OP_IfNull while doing an indexed search. (check-in: 51960009 user: drh tags: trunk)
2013-11-12
21:37
Adjust the SQLITE_MALLOCSIZE defines, primarily to make sure _msize gets used with MSVC when appropriate. (check-in: 4e7e805e user: mistachkin tags: trunk)
21:10
Fix harmless compiler warning. (check-in: ddacd101 user: mistachkin tags: trunk)
20:18
Minor enhancements to the auxiliary information added to EXPLAIN output with SQLITE_EXPLAIN_ENABLE_COMMENTS. (check-in: 0d1328e3 user: drh tags: trunk)
18:37
Break out the structure and macro definitions of where.c into a separate header file whereInt.h for easier editing and debugging. (check-in: c4446712 user: drh tags: trunk)
17:46
When possible, have FTS use 32-bit operations to read varints from the database. (check-in: aa7ba302 user: dan tags: trunk)
15:33
A better (simpler) fix to the count(*) problem addressed in the previous check-in. (check-in: 0f924c6e user: drh tags: trunk)
14:55
Make sure the count(*) optimization works correctly on WITHOUT ROWID tables. (check-in: 91174779 user: drh tags: trunk)
12:30
Update test command [explain_i] to handle the opcodes used by virtual tables (VNext, VFilter etc.). (check-in: 1b215ee3 user: dan tags: trunk)
12:17
Fix for [4065ac8595]: Do not order CROSS or LEFT joins, even if the right-hand-side is a virtual table. (check-in: e2684ece user: dan tags: trunk)
01:11
Fix an error message in the spellfix extension so that it conforms to the style of error messages in the core. (check-in: b896ae3d user: drh tags: trunk)
2013-11-11
23:26
Add a comment to the sqlite3_index_info structure indicating that the new field is only available in SQLite 3.8.2 or later. (check-in: 239648f8 user: drh tags: trunk)
19:56
Fix typos in compile and run-time tests of the sqlite library version number in rtree.c. (check-in: f58d5701 user: dan tags: trunk)
19:01
Add a way for virtual tables to return the expected number of rows for a scan (not just the overall cost) to SQLite. Have the rtree module make use of this. (check-in: 5a3cfd74 user: dan tags: trunk)
16:55
Remove unreachable code, replacing it in most cases with assert() or NEVER() macros. (check-in: 924d63b2 user: drh tags: trunk)
03:37
Fix issue with several memory allocation tests due to KeyInfo allocations now being shared. (check-in: 569fedd6 user: mistachkin tags: trunk)
03:24
Convert several ALWAYS() macros in vdbe.c into assert() statements. (check-in: acc40ff6 user: drh tags: trunk)
02:46
Fix several harmless compiler warnings. (check-in: e6ff492f user: mistachkin tags: trunk)
01:42
Modify a HeapValidate assert in the Win32 native allocator. (check-in: aaed7d1d user: mistachkin tags: trunk)
00:43
Fix a problem in OP_IdxDelete as used by REPLACE conflict resolution that comes up due to recent enhancements that reduce the work required for UNIQUE NOT NULL indices. (check-in: 61d7d475 user: drh tags: trunk)
2013-11-10
00:03
Fix typo in comment and remove superfluous blank line. No changes to code. (check-in: 023233f1 user: mistachkin tags: trunk)
2013-11-09
23:55
Fix compilation errors with some compilers that do not reference recent Windows SDK header files. (check-in: a5805976 user: mistachkin tags: trunk)
23:44
Fix memory type mismatch when compiled with MEMDEBUG. (check-in: 2c32bd6d user: mistachkin tags: trunk)
22:08
Add the sqlite3_win32_compact_heap() function for cleaning up memory allocations on Win32 system. Also cleanup the winGetTempname() function. Changes to the Win32 VFS only. (check-in: d06d9fdb user: drh tags: trunk)
21:19
Updates to documentation on sqlite3_last_insert_rowid(). No changes to code. (check-in: a4c5804e user: drh tags: trunk)
21:11
Use the UNICODE_STRING_MAX_CHARS constant from WinNT.h. (Closed-Leaf check-in: 3fefe4dd user: mistachkin tags: win32heap)
21:10
Furhter cleanup of the winGetTempname function. (check-in: 674de36b user: mistachkin tags: win32heap)
19:47
Updates to requirements marks. No changes to code. (check-in: 8a036628 user: drh tags: trunk)
18:15
Throw an error if AUTOINCREMENT appears in a WITHOUT ROWID table. Updates to API documentation to discuss WITHOUT ROWID. (check-in: b1abb2b0 user: drh tags: trunk)
2013-11-08
20:10
Add more assert() statements and fix compilation issues when the Win32 native heap is not enabled. (check-in: fbf8c382 user: mistachkin tags: win32heap)
19:51
Disable use of HeapCompact on Windows CE as it is not available on all versions. (check-in: e9694b87 user: mistachkin tags: win32heap)
18:52
Adjust the winMemInit return code handling used when resetting the Win32 native heap. (check-in: 37853665 user: mistachkin tags: win32heap)
18:37
Minor corrections to logging for sqlite3_win32_compact_heap(). (check-in: 71347d02 user: mistachkin tags: win32heap)
18:13
Enhancements to the Win32 native heap integration. (check-in: c54dc967 user: mistachkin tags: win32heap)
17:13
Fix harmless compiler warnings. (check-in: 0077c077 user: drh tags: trunk)
17:03
Merge the Cygwin directory separator fix. Also fix a C++-ism in the multiplexor code so that it will compile on MSVC. (check-in: 830629d3 user: drh tags: trunk)
16:54
Performance improvement: Avoid unnecessary seeks on REPLACE INTO for a WITHOUT ROWID table. (check-in: fd11afa5 user: drh tags: trunk)
15:19
Performance improvements: Avoid unnecessary seeks when doing a single-row UPDATE on a WITHOUT ROWID table. (check-in: 6f187a0f user: drh tags: trunk)
12:14
Merge change to drop the mutex on the multiplexor before entering the xRead VFS call, in order to enhance parallelizability. (check-in: 3c566e41 user: drh tags: trunk)
01:09
Optimize out a NotExists/NotFound opcode that occurs in UPDATE processing after constraint checks if there is no possiblity that the constraint checking code might have moved the cursor. (check-in: 74e3ee2e user: drh tags: trunk)
00:16
On the --summary output of wordcount, add the a PRAGMA integrity_check and a 64-bit checksum of the entire table. (check-in: 1d1d13b8 user: drh tags: trunk)
2013-11-07
23:23
Add many new options to the wordcount test program: --delete, --pagesize, --cachesize, --commit, --nosync, and --journal. (check-in: e938112d user: drh tags: trunk)
22:11
Fix temporary directory separator handling for Cygwin. (Closed-Leaf check-in: 9d870d5f user: mistachkin tags: cygDirSep)
21:32
Fix a compiler warning introduced by the previous check-in. (check-in: 404bd98f user: drh tags: trunk)
21:25
Enable the WHERE_ONEPASS_DESIRED optimization for UPDATE operations on WITHOUT ROWID tables. (check-in: 21530798 user: drh tags: trunk)
19:43
Add the --stats and --summary options to the wordcount.c test program. (check-in: 8aa21e67 user: drh tags: trunk)
18:40
Increase the version number to 3.8.2. (check-in: 9ad5b74c user: drh tags: trunk)
18:37
Add the "wordcount.c" test program. (check-in: f02ee546 user: drh tags: trunk)
16:08
Add support for WITHOUT ROWID tables. This change also includes (1) standardization of the error message returned from run-time constraint errors, (2) improved EXPLAIN comments, (3) the SQLITE_ENABLE_EXPLAIN_COMMENTS option, (4) the SQLITE_ENABLE_MODULE_COMMENTS option, and (5) a bug fix (see [573cc27427]) in the handling of REPLACE on the rowid when secondary indices use FAIL or IGNORE. (check-in: c80e229d user: drh tags: trunk)
14:09
Make sure cached KeyInfo objects are only valid for a single database connection. Clear all cached KeyInfo objects on any collating sequence change. (Closed-Leaf check-in: 55eea178 user: drh tags: omit-rowid)
2013-11-06
19:59
Reference count the KeyInfo object. Cache a copy of an appropriate KeyInfo for each index in the Index object, and reuse that one copy as much as possible. (check-in: defd5205 user: drh tags: omit-rowid)
16:28
Have the OP_NoConflict opcode set the VdbeCursor.seekResult variable. This speeds up subsequent OP_Insert and OP_IdxInsert opcodes. (check-in: 47455500 user: dan tags: omit-rowid)
14:52
Use ansi escape codes to use different colored text for opcode names in the output of [explain_i]: Red for opcodes that insert or delete b-tree elements, blue for opcodes that move cursors and green for the ResultRow opcode. (check-in: 4be2b64b user: dan tags: omit-rowid)
14:36
Allocate extra stack space for UnpackedRecord objects, reducing the need to malloc for them as often, and thereby get a performance improvement. (check-in: a725a75f user: drh tags: omit-rowid)
14:05
Minor optimization to the OP_Halt opcode. (check-in: d70c7881 user: drh tags: omit-rowid)
12:56
Improved ORDER BY optimization for WITHOUT ROWID tables. (check-in: 8f1709ff user: drh tags: omit-rowid)
12:05
Disable the OR optimization for WITHOUT ROWID tables, since it relies on the use of rowids. (check-in: 6055dad2 user: drh tags: omit-rowid)
11:46
Remove an incorrect test case from conflict2.test. (check-in: 427612ef user: drh tags: omit-rowid)
02:36
Remove an unused variable. (check-in: e9c1e419 user: drh tags: omit-rowid)
2013-11-05
22:39
Make sure the query planner knows that the PRIMARY KEY index of a WITHOUT ROWID table is always a covering index. (check-in: 03e7019e user: drh tags: omit-rowid)
19:41
Fix conflict handling for the case when the rowid uses REPLACE but other unique constraints use FAIL or IGNORE. (check-in: 573cc274 user: drh tags: omit-rowid)
17:30
Fix a bug in secondary index initialization when the secondary index is a superset of the PRIMARY KEY for a WITHOUT ROWID table. (check-in: 52a3d885 user: drh tags: omit-rowid)
16:56
Remove an "explain" command from test script without_rowid1.test that was accidentally committed. (check-in: 4b41d989 user: dan tags: omit-rowid)
16:39
Unless the destination table is completely empty, disable the xfer optimization for WITHOUT ROWID tables. (check-in: 3877c9f5 user: dan tags: omit-rowid)
15:02
Updates to the backcompat.test test script so that it works with really old (3.6.*) versions. (check-in: ace7e7b6 user: dan tags: omit-rowid)
14:19
Add tests for updates of without-rowid tables that use non-BINARY collation sequences for the primary key columns. And a minor bugfix to the same. (check-in: 99b1fa4b user: dan tags: omit-rowid)
13:33
Standardize the error messages generated by constraint failures to a format of "$TYPE constraint failed: $DETAIL". This involves many changes to the expected output of test cases. (check-in: 54b22192 user: drh tags: omit-rowid)
01:59
Add the conflict2.test script. Fix issues discovered by this script. (check-in: 294ed337 user: drh tags: omit-rowid)
2013-11-04
22:04
Add the index7.test script for testing partial indices with WITHOUT ROWID tables. Fix bugs in ANALYZE located by that script. (check-in: 79befe3a user: drh tags: omit-rowid)
21:44
Bug fixes in the INSERT constraint checker. Refactor the Rowid handling logic for ANALYZE with STAT3/4. (check-in: 1ea43c0f user: drh tags: omit-rowid)
18:34
Add another test case file for WITHOUT ROWID and fix the bugs that the new test file uncovered. (check-in: bc2a06eb user: drh tags: omit-rowid)
17:00
Fix a problem with processing INTEGER PRIMARY KEY on a WITHOUT ROWID table. (check-in: 89098e6d user: drh tags: omit-rowid)
15:23
Correctly handle changing counting when inserting and deleting on WITHOUT ROWID tables. Add more FOREIGN KEY test cases. (check-in: d072bcd0 user: drh tags: omit-rowid)
13:56
Correctly handle self-referential foreign keys on WITHOUT ROWID tables. (check-in: af128862 user: drh tags: omit-rowid)
08:56
Fix a bug preventing FTS from correctly processing bracket tokens that are immediately preceded by characters that are neither whitespace or token characters. (check-in: 49be646c user: dan tags: trunk)
2013-11-03
02:27
Improved comments on foreign key logic. (check-in: 1315d910 user: drh tags: omit-rowid)
2013-11-02
22:29
Improved Synopsis on register comparison operators. Fix a bug on the constraint check generator. (check-in: a7a18b65 user: drh tags: omit-rowid)
22:09
Many new test cases added, that mostly work. Currently 18 errors in without_rowid3.test. Also there is a hack marked by a /*FIXME*/ comment on at fkey.c:547 that needs fixing. (check-in: 39e32187 user: drh tags: omit-rowid)
19:34
Change the "idx" name of the primary key index for WITHOUT ROWID tables in sqlite_statN statistics tables to be the name of the table rather than the fabricated index name (ex: sqlite_autoindex_xyz_1). This makes it consistent with sqlite_master table. (check-in: 4ee4d310 user: drh tags: omit-rowid)
18:46
Update the ANALYZE logic so that it works with WITHOUT ROWID tables. (check-in: 9075770e user: drh tags: omit-rowid)
14:37
Store the root page of the PRIMARY KEY index for a WITHOUT ROWID table in the sqlite_master entry for the main table and omit the sqlite_master entry for the PRIMARY KEY. (check-in: b7544bb2 user: drh tags: omit-rowid)
11:43
Import the sqlite3_analyzer fixes from trunk. (check-in: ac711459 user: drh tags: omit-rowid)
11:34
A pair of sqlite3_analyzer bug fixes: (1) quote strings in the SQL at the end of the output. (2) Fix test_stat.c so that it no longer misses some overflow pages on internal index pages. (check-in: 42a11e74 user: drh tags: trunk)
2013-11-01
22:02
Size KeyInfo objects so that IdxInserts always compare the correct number of fields. (check-in: 302a8139 user: drh tags: omit-rowid)
20:30
Fix sqlite3_analyzer so that it works with WITHOUT ROWID tables. Fix index generation for secondary indices that include fields from the PRIMARY KEY. (check-in: f9769d70 user: drh tags: omit-rowid)
18:14
Additional UPDATE test cases for WITHOUT ROWID. (check-in: 65384ae0 user: drh tags: omit-rowid)
17:59
Fix an invalid cast operation in the WITHOUT ROWID parsing logic. (check-in: 845153be user: drh tags: omit-rowid)
17:21
Merge all changes from trunk, and disable a pair of corruption tests that are no longer valid since sqlite_master.rootpage can now be NULL for tables. (check-in: dd5d57b9 user: drh tags: omit-rowid)
17:08
Change the interface to sqlite3GenerateConstraintChecks() for improved lucidity and to fix issues in dealing with UPDATEs for WITHOUT ROWID tables. Make sure iDataCur and iIdxCur are initialized when processing DELETEs of a VIEW. UPDATE processing distinguishes between changes to ROWID and PRIMARY KEY. (check-in: c525ac56 user: drh tags: omit-rowid)
14:03
Improved VDBE comments on the constraint checker. Fix a missing write lock in the UPDATE logic. (check-in: 3bed599e user: drh tags: omit-rowid)
12:42
Some UPDATE statements now working in WITHOUT ROWID tables. (check-in: 5c0eaea6 user: drh tags: omit-rowid)
01:45
A couple of bug fixes. (check-in: cdf00248 user: drh tags: omit-rowid)
2013-10-31
20:34
Fix the Synopsis on OP_Concat. Added test_addop_breakpoint() during SQLITE_DEBUG. Enhanced sqlite3VdbeChangeToNoop() to omit the instruction if it is the most recent added. Continue to fix problems with UPDATE and WITHOUT ROWID. (check-in: 9b6d9e10 user: drh tags: omit-rowid)
18:49
Fix a problem in os_unix.c causing compilation failure if SQLITE_DEBUG and SQLITE_MAX_MMAP_SIZE=0 are both defined. (check-in: 090db8c8 user: dan tags: trunk)
17:38
Fix issues with quering from an auxiliary index that must refer back to the PRIMARY KEY index of a WITHOUT ROWID table. (check-in: cff1f55c user: drh tags: omit-rowid)
15:37
Improved comments and variable names in infrastructure routines of UPDATE, DELETE, and INSERT. (check-in: ad90e762 user: drh tags: omit-rowid)
12:13
Moving UPDATE towards the iDataCur/iIdxCur representation. Still not working for WITHOUT ROWID, though. (check-in: deacbd21 user: drh tags: omit-rowid)
11:15
Refactor the INSERT, DELETE, and UPDATE code generators to distinguish between the "data cursor" and the "first index cursor", which are no longer consecutive in the case of a WITHOUT ROWID table. (check-in: 1adfca60 user: drh tags: omit-rowid)
06:39
Update comments in the MSVC batch build tool. (check-in: 0414bb73 user: mistachkin tags: trunk)
06:13
Enable some more tests on Windows. (check-in: 72389c29 user: mistachkin tags: trunk)
06:11
Fix harmless compiler warnings. (check-in: 1a0a8865 user: mistachkin tags: trunk)
2013-10-30
20:22
Continue working to get UPDATE operational for WITHOUT ROWID tables. Fix PRAGMA integrity_check so that it works on WITHOUT ROWID tables. (check-in: 0d4fea74 user: drh tags: omit-rowid)
15:52
Make sure KeyInfo objects on multi-column indices of WITHOUT ROWID tables have the correct nField and nXField values. Also, add the SQLITE_ENABLE_MODULE_COMMENT compile-time option and the VdbeModuleComment() macro and use it to label entry and exit points of some key routines. (check-in: 6d9af606 user: drh tags: omit-rowid)
13:46
In the P4 column of the EXPLAIN listing, abbreviate "keyinfo" as just "k" and "BINARY" as just "B". (check-in: 72d45eb7 user: drh tags: omit-rowid)
12:43
Enhance the timer in the shell to show wall-clock time in addition to user and kernel CPU time. (check-in: 908e2c21 user: drh tags: trunk)
03:25
Add the "Esri Spatially-Enabled Database" file format to the magic.txt file. (check-in: 8530a18f user: drh tags: trunk)
02:37
Merge EXPLAIN enhancements from trunk. (check-in: 2fcac056 user: drh tags: omit-rowid)
02:28
Add the SQLITE_ENABLE_EXPLAIN_COMMENTS compile-time option to enable extra commentary in the EXPLAIN output. Formerly, this was only available with SQLITE_DEBUG. (check-in: e1a89b56 user: drh tags: trunk)
00:25
Enhanced display of register ranges in the auxiliary comments added to EXPLAIN. (check-in: d6b0c392 user: drh tags: trunk)
2013-10-29
20:47
Import the automatic comment generating changes from trunk. (check-in: 8bb51da1 user: drh tags: omit-rowid)
20:40
Automatically generated comments on many VDBE opcodes when in SQLITE_DEBUG mode. Comments derive from the "Synopsis:" field added to each opcode definition in vdbe.c. (check-in: 5f310c6a user: drh tags: trunk)
16:14
Improved comments on the constraint checking logic. (check-in: 141a38a7 user: drh tags: omit-rowid)
2013-10-28
22:39
Merge recent fixes from trunk. (check-in: 9f8191d1 user: drh tags: omit-rowid)
22:33
Formatting improvements to the WHERE-clause constraint display in the wheretrace debugging logic. (check-in: 3a9e3ed9 user: drh tags: trunk)
20:38
Add regression tests for ticket [c620261b5b5]. (check-in: 05a35b09 user: drh tags: trunk)
20:15
Do not use transitive WHERE-clause constraints on LEFT JOINs. Fix for ticket [c620261b5b5dc]. (check-in: 9aac4e58 user: drh tags: trunk)
19:59
More wheretrace debugging support: Show a listing of all WHERE clause terms (on wheretrace bit 0x100) and include important flags such as TERM_VIRTUAL, WO_EQUIV, and EP_FromJoin. (check-in: 92ccd705 user: drh tags: trunk)
19:03
Bug fix and enhancements to the improved wheretrace logic that shows the constraint expressions. (check-in: 10f125f5 user: drh tags: trunk)
14:34
Improved "wheretrace" capabilities: Show the constraint expression if the wheretrace flag has the 0x100 bit set and if compiled with SQLITE_ENABLE_TREE_EXPLAIN. (check-in: 710a18ac user: drh tags: trunk)
2013-10-26
15:40
Work on the UPDATE and INSERT logic. This is an incremental check-in so that can switch over to trunk to work on an unrelated issue there. (check-in: 086ec2a1 user: drh tags: omit-rowid)
13:36
Replace the OP_IsUnique opcode with OP_NoConflict. This code simplification might be useful to move onto trunk even if this branch is never merged. (check-in: e6650e16 user: drh tags: omit-rowid)
00:58
Minor refactoring of variable names and fixes to comments in insert.c. (check-in: ae61a343 user: drh tags: omit-rowid)
2013-10-25
19:17
Progress toward getting UPDATE to work in WITHOUT ROWID tables. (check-in: e557b7d8 user: drh tags: omit-rowid)
14:46
Basic DELETE operations now working on WITHOUT ROWID tables. (check-in: 9eafafa3 user: drh tags: omit-rowid)
2013-10-24
19:48
Update the interface to the sqlite3GenerateRowDelete() utility so that it is able to handle WITHOUT ROWID tables. The implementation still needs to be completed. (check-in: 85daf517 user: drh tags: omit-rowid)
15:20
Add the ".open" command to the command-line shell. (check-in: 21eccb91 user: drh tags: trunk)
14:16
Delete PRIMARY KEY index entries last. Only construct the unique prefix of an index key when deleting entries from an index. (check-in: 0e56ba69 user: drh tags: omit-rowid)
11:55
Remove an obsolete comment from the VDBE. No code changes. (check-in: 53bb070c user: drh tags: omit-rowid)
00:18
Correctly handle queries that use secondary indices of WITHOUT ROWID tables. (check-in: d8bc8595 user: drh tags: omit-rowid)
2013-10-23
23:37
Change the sqlite3OpenTable() utility to open the PRIMARY KEY index when reading a WITHOUT ROWID table. (check-in: 247f3899 user: drh tags: omit-rowid)
22:23
Construct secondary indices on WITHOUT ROWID tables. (check-in: 2c028ddc user: drh tags: omit-rowid)
17:39
Report an error when trying to resolve column name "rowid" in a WITHOUT ROWID table. (check-in: 36bcc9cb user: drh tags: omit-rowid)
16:03
Get VACUUM and the xfer optimization working with WITHOUT ROWID. (check-in: 579815ff user: drh tags: omit-rowid)
13:30
Some inserts and queries working for multi-column primary keys and WITHOUT ROWID. (check-in: b21d831b user: drh tags: omit-rowid)
01:57
Some simple inserts and queries working on WITHOUT ROWID tables. (check-in: 3f8016de user: drh tags: omit-rowid)
00:32
Build internal data structures appropriately for WITHOUT ROWID tables. (check-in: 35a36060 user: drh tags: omit-rowid)
2013-10-22
18:01
The Index object now has nKeyCol and nColumn. nColumn is the total number of columns and nKeyCol is the number of key columns. Currently these always differ by one. Refactor aiColumn[] to be of type i16 instead of int. (check-in: a106ce86 user: drh tags: omit-rowid)
14:28
Add a procedure to handle the messy details of allocating an Index object from the heap. (check-in: 45efc94f user: drh tags: omit-rowid)
10:23
Extra backwards-compatibility tests verify that UNIQUE and PRIMARY KEY indices are created in the correct order. Other backwards-compatibility tests already cover this, but it does not hurt to double up. (check-in: 5ca0ea2e user: drh tags: omit-rowid)
01:18
Previous refactor is not going to be helpful because implied indices must be created in the same order that they appear in the CREATE TABLE statement for backwards compatibility. This is a much smaller change to clean up a few loose ends. (check-in: 824b549f user: drh tags: omit-rowid)
2013-10-21
23:17
Improve support for the SQLITE_OMIT_FLAG_PRAGMAS compile-time option. (check-in: f1d8c3b0 user: mistachkin tags: trunk)
13:15
Drop the mutex on the multiplexor before entering the xRead VFS call. (Closed-Leaf check-in: a00d2ed4 user: drh tags: multiplex-parallel-read)
02:14
Simplification of the syntax: Merely append "WITHOUT rowid" to the end of the table definition. (check-in: 131cc6e1 user: drh tags: omit-rowid)
2013-10-19
23:31
Experimental changes toward "index only" tables. Add the ability to specify options on CREATE TABLE statements using the WITH clause modeled after PostgreSQL and SQL Server. Only the "omit_rowid" option is currently recognized and that option is currently a no-op. (check-in: 0248ec5e user: drh tags: omit-rowid)
16:51
Improved header comment with better instructions on the vfslog.c extension. (check-in: 4bd592c8 user: drh tags: trunk)
15:07
Fix a bug causing an "malformed database schema error" error if a temp table with the same name as an existing table that has at least one temp trigger attached to it is created. (check-in: 56dca4a6 user: dan tags: trunk)
2013-10-18
20:03
Add the SQLITE_FCNTL_TRACE file control and generate it for OP_Trace when compiled with SQLITE_USE_FCNTL_TRACE. Update vfslog.c to make use of the new file control. Also update vfslog.c to log UNLOCK events before the fact, rather than afterwards. (check-in: e801f35a user: drh tags: trunk)
17:42
Further enhance the vfslog extension to record the number of freelist pages and the first freelist page in CHNGCTR-READ and CHNGCTR-WRITE records. (check-in: 08157524 user: drh tags: trunk)
14:37
In the vfslog extension for FILECONTROL records, show the pragma name for SQLITE_FCNTL_PRAGMAs and the requested size for SQLITE_FCNTL_SIZE_HINT. (check-in: f0629695 user: drh tags: trunk)
2013-10-17
12:57
Version 3.8.1 (check-in: c78be6d7 user: drh tags: trunk, release, version-3.8.1)
2013-10-16
23:58
Fix a typo in a requirements mark comment. No changes to code. (check-in: e5a439cf user: drh tags: trunk)
11:39
Clear a valgrind error by zeroing the first 4 bytes of the temp-space allocation used by the b-tree module. (check-in: 8651aba1 user: dan tags: trunk)
11:31
Fix memory and resource leaks for WinCE and Cygwin, and a compiler warning on windows with SQLITE_THREADSAFE=0. (check-in: 9905cea9 user: drh tags: trunk)
09:49
Fix memory/resource leaks for WinCE and Cygwin. (Closed-Leaf check-in: 2470d1bb user: mistachkin tags: wince-fixes)
2013-10-15
19:06
Add the "languageid" hidden column to fts4aux. (check-in: 891df358 user: dan tags: trunk)
15:35
Changes to test code to make sure no server threads are left running after server1.test finishes. (check-in: 1086e00b user: dan tags: trunk)
14:29
Fix an 8-byte alignment problem on the "crash test" harness (test code, not in the core) that causes problems on Sparc. (check-in: bcbc6503 user: drh tags: trunk)
11:58
Fix harmless macro redefinition warnings in the totype extension. (check-in: c9c1f8d6 user: drh tags: trunk)
10:43
Fix harmless macro redefinition warnings in the totype extension. (Closed-Leaf check-in: a38adeb7 user: mistachkin tags: noWarnings)
2013-10-14
22:35
Fix harmless compiler warning in the totype extension. Include all standard whitespace characters in totypeIsspace. Minor adjustments to style and comments. (check-in: 73238f65 user: mistachkin tags: trunk)
21:14
Move the tointeger() and toreal() functions out of core and make them into a run-time loadable extension. (check-in: 9f66dd7e user: drh tags: trunk)
20:30
Fix a crash in FTS incremental phrase processing that can occur if the second or subsequent token is much more common in the dataset than the first. (check-in: 0bf438fc user: dan tags: trunk)
19:35
Add implementations for the toInteger() and toReal() SQL functions. (check-in: a0f7cbc0 user: drh tags: trunk)
15:41
Fix for building with SQLITE_OMIT_FOREIGN_KEY. (check-in: b8b5f6c8 user: dan tags: trunk)
14:30
Update the foreign_key_check pragma so that when a parent table is undefined it is treated as an empty table. (check-in: 208b259a user: drh tags: trunk)
14:21
Corrects to comments on the STAT4 implementation. (check-in: e06f74d3 user: drh tags: trunk)
13:21
Make subroutines sampleCopy() and valueFromExpr() have file scope. (check-in: 1660efbe user: drh tags: trunk)
10:46
Add a new application_id for GeoPackage version 1.0. (check-in: 98ddfe45 user: drh tags: trunk)
2013-10-12
23:39
Merge updates from trunk. (Closed-Leaf check-in: a88b5be0 user: mistachkin tags: toTypeFuncs)
20:22
Restore the index_list pragma back to its former operation. Create a new PRAGMA stats used to access the table and index widths and heights. (check-in: f0cf8c85 user: drh tags: trunk)
19:06
In "PRAGMA foreign_key_check", treat missing parent tables as empty (instead of as errors). (Closed-Leaf check-in: 8c13a7fd user: dan tags: fkc-missing-parent-tables)
15:12
Fix handling of "DROP TABLE" commands when "PRAGMA defer_foreign_keys=1" is set. (check-in: 27001356 user: dan tags: trunk)
13:16
Add tests that demonstrate that PRAGMA defer_foreign_keys will reset to off at the conclusion of the next transaction. (check-in: 67e28a11 user: drh tags: trunk)
02:33
Fix harmless compiler warning. (check-in: 4b130f88 user: mistachkin tags: trunk)
02:31
Permit the creation of VSIX packages for Win32. (check-in: 035d03e9 user: mistachkin tags: trunk)
00:56
Fix Unicode character encoding issues on Windows in the fts4unicode test file. (check-in: c9310c9a user: mistachkin tags: trunk)
2013-10-11
23:37
Identify requirements text in the SQLITE_CONFIG_ documentation. Fix a typo (a duplicated word) in part of that documentation. Add some requirements marks for DETACH to the test scripts. No code changes. (check-in: 1be0a3ad user: drh tags: trunk)
23:02
The split amalgamation option should be disabled by default. (check-in: 7c24d22f user: mistachkin tags: trunk)
23:01
Enhance debugging support for the split amalgamation files when compiling with MSVC. (check-in: 8ff17c55 user: mistachkin tags: trunk)
23:01
Fix a harmless compiler warning in lemon.c. (check-in: 62959c0c user: drh tags: trunk)
22:19
Add -no-undefined option when linking the shared libraries. (check-in: 977d2b12 user: mistachkin tags: trunk)
22:17
Fix test numbering. (check-in: cef39f69 user: mistachkin tags: trunk)
20:14
Add requirements marks. No code changes. (check-in: 5e0d43ab user: drh tags: trunk)
16:35
Additional test cases and requirements marks for the unlikely(), likelihood() and instr() functions. (check-in: 5f01cd36 user: drh tags: trunk)
15:05
Fix various harmless compiler warnings. Change the "warnings.sh" script to work with STAT4 instead of STAT3. (check-in: 7df06684 user: drh tags: trunk)
13:27
Make sure the sqlite3.h file occurs at the very top of the sqlite3.c amalgamation. (check-in: 03593817 user: drh tags: trunk)
05:51
Fix compilation issue for WinRT. (check-in: 7a2006ca user: mistachkin tags: trunk)
2013-10-10
17:33
Add a rule to the main.mk makefile for building showdb. (check-in: fc5552da user: drh tags: trunk)
15:04
Enhancements to the vfslog.c module to show all change-counter changes and to show the hostname and pid of the process that creates each log file. (check-in: af7abebe user: drh tags: trunk)
13:41
Another fix to the hash signature algorithm in vfslog.c. (check-in: 34212aa8 user: drh tags: trunk)
13:38
Fix the hash signature algorithm in vfslog.c. Add a utility program to show the hash signatures for every page of a database file. (check-in: eaf4de13 user: drh tags: trunk)
13:04
Add ext/misc/vfslog.c, a VFS shim for unix that keeps a log of method calls made by SQLite. (check-in: 24a827b8 user: dan tags: trunk)
12:38
Estimate row sizes for tables and indices and use those estimates during query planning. Enhance the index_info pragma to show the estimated row sizes and to show the estimated row size for the main table as well. Allow an alternative row size estimate to be specified in the sqlite_stat1 table. (check-in: d27b88b8 user: drh tags: trunk)
2013-10-09
19:07
Make sure the correct printf format is used for type tRowcnt regardless of whether 32-bit or 64-bit row counts are specified at compile-time. (Closed-Leaf check-in: e97d7d30 user: drh tags: row-size-est)
2013-10-08
23:16
Move a conditional inside of an #ifdef in order to make all branches reachable regardless of compile-time options used. (check-in: f7cc30d4 user: drh tags: row-size-est)
22:25
Fix test cases for the new information in PRAGMA index_list. (check-in: dd03be10 user: drh tags: row-size-est)
20:42
Rollback some of the previous changes in the branch such that the estimated row sizes are now only used as a tie-breaker for index scans. (check-in: 65553ff3 user: drh tags: row-size-est)
20:01
Use #ifdefs to omit unused code in the columnType() routine depending on compile-time options. (check-in: 3fd5e332 user: drh tags: row-size-est)
18:40
Further refinement of the idea of multiplying run-time cost estimates by the estimated row size. (check-in: 18bd6ba9 user: drh tags: row-size-est)
2013-10-07
21:49
Fix compilation issue with MSVC. (check-in: 36d64dc3 user: mistachkin tags: trunk)
17:32
Multiply all cursor step cost estimates by the estimated size of the row in bytes, in order to get the query planner ot make use of estimated row sizes. This check-in uses magic numbers in a few places (for example, estimates of the size of output rows) and needs lots of refinement. Consider this a proof-of-concept only. (check-in: cb34cfe5 user: drh tags: row-size-est)
10:48
Merge bug fixes from trunk. (check-in: 1d7b2dc0 user: drh tags: row-size-est)
00:36
Restore the hexrekey pragma which was accidently deleted during the pragma refactoring. Make sure the hexkey and hexrekey pragmas do not overflow buffers with a over-length key. (check-in: 0aca31e1 user: drh tags: trunk)
2013-10-06
22:52
Remove an incorrect debugging assert() that was accidently added during the STAT4 enhancement. (check-in: 2bb7f74b user: drh tags: trunk)
22:12
Accept the sz=N parameter on table-only lines of sqlite_stat1. (check-in: e9e932aa user: drh tags: row-size-est)
2013-10-05
20:18
Fix an issue in the test8.c test module that arises because of the change to PRAGMA index_list(). Remove an unused local variable. (check-in: 029430c5 user: drh tags: row-size-est)
19:18
Completely remove the iScanRatio field. The PRAGMA index_list(TABLE) command shows the estimated row size in the forth column. It also generates a row for the table with an index name of NULL. The query planner still does not take row size estimates into account - that is the next step. (check-in: 8b4aa0c7 user: drh tags: row-size-est)
18:32
Improvements to the LogEst command-line tool used to convert between ordinary numbers and the LogEst representation. (check-in: 5252aeb6 user: drh tags: row-size-est)
18:16
Begin an experimental refactoring to estimate the average number of bytes in table and index rows and to use that information in query planner. Begin by renaming WhereCost to LogEst and making that type and its conversion routines available outside of where.c. (check-in: 66c4a251 user: drh tags: row-size-est)
02:56
In the index_list pragma, make sure the "r" column is the same on output as it was on input in the sqlite_stat1 table. (Closed-Leaf check-in: de78250a user: drh tags: index-scan-rate)
2013-10-04
20:39
Merge trunk changes. (check-in: c6ac80ed user: drh tags: index-scan-rate)
18:29
Further refinements of the index scanning speed logic. (check-in: e5d9371d user: drh tags: index-scan-rate)
18:17
If an "INSERT INTO ... SELECT" can use the xfer optimization, pass the OPFLAG_BULKCSR hint to btree cursors used to update indices. This results in a tighter key packing. (check-in: 087af29e user: dan tags: trunk)
15:58
Fix test cases so that they work when the query planner uses index size estimates to determine whether or not to try an covering index scan. (check-in: 2f394de8 user: drh tags: index-scan-rate)
15:30
Improved estimates of the relative speed of index scans based on declared datatypes of columns in the table. Add "r" column to PRAGMA index_info, showing the estimated relative scan rate. (check-in: 07462bb6 user: drh tags: index-scan-rate)
02:36
Progress toward using the iScanRatio information on indices. Many tests are still failing. (check-in: 6c352edb user: drh tags: index-scan-rate)
00:00
Make sure the count(*) optimization works correctly even when partial indices are present. Ticket [a5c8ed66cae]. (check-in: 9f2f4c0a user: drh tags: trunk)
2013-10-03
20:41
Have FTS take advantage of "docid<?" constraints when they are present. Extend the FTS "incremental doclist" optimization so that it is used for tokens within multi-token phrases. (check-in: baf8ce59 user: dan tags: trunk)
20:28
Merge latest trunk changes. (Closed-Leaf check-in: 24aa20da user: dan tags: fts4-docid-range-constraints)
19:27
Allow FTS4 multi-token phrases to use a combination of in-memory and incrementally loaded doclists. This allows phrases to (partially) benefit from incremental doclists without disabling the deferred token optimization. (check-in: f6819c5f user: dan tags: fts4-docid-range-constraints)
19:21
Experimental branch allowing different postulated scan rates for each index. (check-in: d59d97b0 user: drh tags: index-scan-rate)
15:39
The sqlite3FixInit() routine cannot fail. So change the return type from "int" to "void". (check-in: 500c5932 user: drh tags: trunk)
14:08
Rework the PRAGMA implementation to only call sqlite3ReadSchema() from a single place, based on a flag in the pragma table, rather than separately from each case which needs the schema. (check-in: 8338232a user: drh tags: trunk)
12:29
Return an error if an attempt is made to create a trigger with an SQL variable embedded within it. If such a variable reference is found within a trigger definition loaded from the sqlite_master table, silently replace it with a NULL. (check-in: f35f6ae3 user: dan tags: trunk)
11:27
Remove unnecessary memset() calls from test code. (check-in: eec3187b user: drh tags: trunk)
2013-10-02
20:46
In the lemon parser generator, change all hashes to unsigned to avoid potential problems with signed integer overflow. (check-in: 8d399a03 user: drh tags: trunk)
08:04
Add a test to check that the new multi-token phrase optimization is actually helping. (check-in: bc3a2ed5 user: dan tags: fts4-docid-range-constraints)
2013-10-01
20:29
Bring some file format comments in btreeInt.h up to date. (check-in: 012d54d0 user: drh tags: trunk)
20:10
Merge trunk changes with this branch. (check-in: 65d9c6fa user: dan tags: fts4-docid-range-constraints)
20:02
Allow multi-token phrases to load doclists from the database incrementally. This allows queries that feature such phrases to benefit from the "docid<?" optimization. (check-in: ea543f08 user: dan tags: fts4-docid-range-constraints)
19:36
Fix comments in the fast_vacuum.c demonstration program. (check-in: e0db7b38 user: drh tags: trunk)
19:02
Add the "fast_vacuum.c" demonstration program to the tool/ subdirectgory. (check-in: 2b60320d user: drh tags: trunk)
15:30
Change the ".dump" command in the command-line shell so that it COMMITs if there are database corruption errors but invokes ROLLBACK on any other kind of error. (check-in: 47323463 user: drh tags: trunk)
2013-09-30
19:33
Fix a minor typo in a comment in where.c. (check-in: 9c9fa151 user: drh tags: trunk)
19:05
Add some timing tests to the amatch test script. (check-in: ad71c72b user: drh tags: trunk)
18:16
Merge trunk changes with this branch. (check-in: e294a9c7 user: dan tags: fts4-docid-range-constraints)
18:14
Fix a performance problem in the FTS4 auxiliary functions triggered by an OR clause in the full-text query. (check-in: fa0f2f0e user: dan tags: trunk)
17:37
Fix memory leaks in the amatch extension. Add a few simple test cases. (check-in: 60413473 user: drh tags: trunk)
11:42
Have fts4 full-text queries consider "docid<?" and similar constraints. (check-in: 6622424a user: dan tags: fts4-docid-range-constraints)
11:01
Update and modernize an obsolete comment associated with VACUUM. No changes to code. (check-in: 94c914e3 user: drh tags: trunk)
2013-09-29
04:56
Fix typo in comment. No changes to code. (check-in: 0b7bd468 user: mistachkin tags: trunk)
2013-09-28
16:43
Add new test file fts3defer3.test. (check-in: a6cd14ef user: dan tags: trunk)
13:28
In the nextchar.c extension, allow the second argument to the next_char() function to be a subquery. (check-in: 59b9fa22 user: drh tags: trunk)
12:40
Updates to the sqlite3_analyzer utility: Change the names of some labels, especially change "Fragmentation" to "Non-sequential pages". Revise the computation of non-sequential pages so that it ignores itercalated non-leaf pages (overflow and index pages). (check-in: 3e5c7771 user: drh tags: trunk)
2013-09-26
15:21
Obtain the required shared-cache write-lock when executing "DELETE FROM tbl" statements. Fix for [1e1321ee98]. (check-in: 1f8f4fdf user: dan tags: trunk)
11:04
Fix a faulty assert() in sqlite3BtreeBeginTrans() that may fail in shared-cache mode. (check-in: 1e1321ee user: dan tags: trunk)
2013-09-24
19:07
Merge updates from trunk. (check-in: 435ce3b3 user: mistachkin tags: toTypeFuncs)
2013-09-18
11:16
Test that the unicode61 tokenchars= and separators= options work with the fts3tokenize virtual table. (check-in: ed240514 user: dan tags: trunk)
2013-09-17
23:36
Clear the current time value on prepared statements when the prepared statement is reset. (check-in: cebd6fc5 user: drh tags: trunk)
2013-09-16
20:46
Readability improvements to the Win32 RC file. (check-in: e6459062 user: mistachkin tags: trunk)
19:27
Minor consistency fixes to the Win32 RC file. (check-in: 619c5211 user: mistachkin tags: trunk)
12:57
The date and time functions use the exact same notion of "now" for every invocation within the same call to sqlite3_step(). (check-in: daf6ba41 user: drh tags: trunk)
2013-09-13
23:27
Fix Windows SDK compiler warning. (check-in: d5fc3f1d user: mistachkin tags: trunk)
23:26
Fix test issues for Windows portability. (check-in: 650b3282 user: mistachkin tags: trunk)
22:38
VSIX tooling changes to support Visual Studio 2013. (check-in: d56fac40 user: mistachkin tags: trunk)
21:03
Fix the "const" qualifiers on the pragma name table. (check-in: b74e6be8 user: drh tags: trunk)
21:01
Add the soft_heap_limit pragma. (check-in: c326356f user: drh tags: trunk)
19:00
Tweak the new PRAGMA name parser to achieve full branch test coverage. (check-in: c82e05c4 user: drh tags: trunk)
18:15
Remove one unreachable branch and add asserts() to dupedExprStructSize(). New asserts verify that removed branch is unused and that constants that are ORed together in the output do not overlap. (check-in: 86ad358b user: drh tags: trunk)
17:47
Adjust the query planner to take into account WHERE clause terms that do not drive indices. Add the unlikely() and likelihood() functions used to give hints to the query planner about the selectivity of WHERE clause terms. (check-in: bc446449 user: drh tags: trunk)
16:56
Enhance the pragma lookup table generator script to output a comment that gives the number of pragmas. (check-in: ca052050 user: drh tags: trunk)
16:36
Change the PRAGMA parser to use a binary search for the pragma name. Also: Minor performance enhancement to sqlite3DbFree() and to the token dequoter. (check-in: 870c030b user: drh tags: trunk)
12:10
Add tests for the fts4 unicode61 tokenchars and separators options. (check-in: 9ce6f40d user: dan tags: trunk)
2013-09-12
23:42
Refactor the ExprSetIrreducible() macro into ExprSetVVAProperty(*,EP_NoReduce). This is a naming change only. The logic is the same. (Closed-Leaf check-in: 695aee46 user: drh tags: unlikely-func)
23:12
Fix typo in a macro name: "GlogUpperToLower" should be "GlobUpperToLower" (check-in: 73634ca4 user: drh tags: trunk)
17:29
Merge in the Expr.flags expansion to 32-bits. Use an extra bit to help optimize the sqlite3ExprSkipCollate() routine. (check-in: 4c84d1b4 user: drh tags: unlikely-func)
16:50
Increase the number of bits available in Expr.flags. Other tweaks aimed at making expression processing more robust. (Closed-Leaf check-in: 579a5125 user: drh tags: expr-tuning)
02:09
For error log messages generated by the Win32 native allocator, make sure the correct format specifier is used for the value returned by GetLastError(). (check-in: 75a8a8c1 user: mistachkin tags: trunk)
01:47
Fix a couple more harmless compiler warnings. (check-in: 59708674 user: mistachkin tags: trunk)
01:33
Remove two obsolete fields from the sqlite3 object. (check-in: 117fa5fb user: drh tags: trunk)
00:54
Fix harmless compiler warning. (check-in: 2b510614 user: mistachkin tags: trunk)
00:40
Merge updates from trunk. (Closed-Leaf check-in: fca799f0 user: mistachkin tags: vsix2013)
2013-09-11
17:39
Improvements to likelihood processing so that commuting an unindexed term in the WHERE clause does not change the query plan. (check-in: 6e6bded0 user: drh tags: unlikely-func)
14:57
Add test cases to cover TPC-H Q8. (check-in: eb5cef83 user: drh tags: trunk)
14:34
Additional unlikely() test cases. Logic tweaks to support test coverage. (check-in: 5d00cce7 user: drh tags: unlikely-func)
11:38
Change the name of the two-argument unlikely() function to likelihood(). Add test cases. (check-in: 29a359b8 user: drh tags: unlikely-func)
03:53
Tweaks to the index selection logic. (check-in: 52d52688 user: drh tags: unlikely-func)
2013-09-10
01:53
Merge trunk fixes into the unlikely-func branch. (check-in: a51d7515 user: drh tags: unlikely-func)
01:41
Deterministically initialize the PRNG used as a tie-breaker in the ANALYZE command, so that the analysis is always the same given the same database. This simplifies testing. (check-in: 48ed8b56 user: drh tags: trunk)
2013-09-09
19:37
Make sure that the transitive constraint optimization does not cause WHERE clause terms to be disabled prematurely. We are unable to find a test case that fails because of this, but it seems prudent to make this preventative change nevertheless. (check-in: d6e361d7 user: drh tags: trunk)
2013-09-07
00:29
Continuing refinements of the logic to take WHERE clause terms not used for indexing into account when computing the number of output rows from each table. (check-in: b65dc534 user: drh tags: unlikely-func)
2013-09-06
22:27
Merge updates from trunk. (check-in: 8922be1a user: mistachkin tags: toTypeFuncs)
21:41
Add the ability to generate assembly listing files using the MSVC makefile. (check-in: 6caa2cd1 user: mistachkin tags: toTypeFuncs)
20:30
When converting from a BLOB value in the tointeger() and toreal() SQL functions, make sure that endianness of the machine does not matter. (check-in: 94c4cdc5 user: mistachkin tags: toTypeFuncs)
17:45
Enhance the plan solver to take into account the number of output rows when computing the set of paths to retain for the next cycle. (check-in: 1a46a724 user: drh tags: unlikely-func)
15:23
Initial implementation of the unlikely() SQL function used as a hint to the query planner. (check-in: 036fc37a user: drh tags: unlikely-func)
13:10
Combine the FuncDef.iPrefEnc and FuncDef.flags fields into a single new FuncDef.funcFlags field. (check-in: 97b10e66 user: drh tags: trunk)
00:40
Make sure the destination WhereLoop is left in a sane state when an OOM fault occurs inside of whereLoopXfer(). (check-in: a99a53b8 user: drh tags: trunk)
2013-09-05
18:40
When preparing an UPDATE statement, avoid generating VDBE code for those foreign key related actions and constraint checks that may be seen to be unnecessary by considering the subset of table columns potentially modified by the UPDATE. (check-in: e940b5de user: dan tags: trunk)
2013-09-04
18:14
Rearrange the order of conditions in an "if" statement to facilitate testing. (check-in: 8462fb43 user: drh tags: trunk)
16:38
Add tests to improve coverage when SQLITE_ENABLE_STAT3 is defined. (check-in: f929e9b4 user: dan tags: trunk)
16:08
Fix a bug in the command-line shell for ".mode insert" on UTF16 databases with BLOB values. (check-in: d8fdc782 user: drh tags: trunk)
15:15
The sqlite3Stat4ProbeSetValue() routine should always return results using the database encoding. (check-in: eb216632 user: drh tags: trunk)
04:04
Fix out-of-order variable declaration. Fix harmless compiler warning. (check-in: 8df95bb0 user: mistachkin tags: trunk)
02:07
Conditionally exclude code from analyze.c that is not used by STAT3. (check-in: a48948a1 user: drh tags: trunk)
00:58
Additional test cases for the tointeger() and toreal() SQL functions when converting from a BLOB. (check-in: e1814452 user: mistachkin tags: toTypeFuncs)
2013-09-03
19:26
Harden the STAT4 logic in where.c against OOM faults. (check-in: 91d2cfbc user: drh tags: trunk)
14:43
Fix another problem in stat4 sample selection. (check-in: d59f5809 user: dan tags: trunk)
14:03
Make sure the omit-noop-left-join optimization is not applied if columns of the LEFT JOIN are used in the ORDER BY clause. Ticket [be84e357c035] (check-in: 0303d6bc user: drh tags: trunk)
2013-09-02
20:22
Simplify branch coverage testing by interchanging the order of two tests in the whereLoopInsert() function. (check-in: f7079b53 user: drh tags: trunk)
18:58
Further stat4 related tests. (check-in: 0a702c4b user: dan tags: trunk)
11:52
Add tests to check if ANALYZE is choosing common non-periodic samples for the stat4 table. (check-in: 17584299 user: dan tags: trunk)
07:16
Fix a problem with using stat4 data to estimate the number of rows scanned by a range constraint on the second or subsequent column of any index where an affinity transformation must be applied to the constraint argument. (check-in: c21f58d8 user: dan tags: trunk)
2013-09-01
23:36
Merge updates from trunk. (check-in: 2982725e user: mistachkin tags: toTypeFuncs)
2013-08-31
21:41
Handle BLOBs specially, treating them as binary, in the tointeger() and toreal() SQL functions. (check-in: c4c53acb user: mistachkin tags: toTypeFuncs)
18:36
Cleanup of the windows VFS, including added support for Cygwin, fixes for compiler warnings under unusual configurations, and improved diagnostic error messages. (check-in: c94933f1 user: drh tags: trunk)
18:06
Revise the amalgamation tool to allow 'duplicate' include files to be retained manually while still preserving the existing line numbers. (Closed-Leaf check-in: aa482846 user: mistachkin tags: cygwinTempPath)
17:21
Fix a problem causing SQLite not to use stat4 or stat3 data to analyze constraints of the form "column = expr COLLATE collation" (those with an explicit COLLATE on the non-column side of the comparison operator). (check-in: 1e86d81d user: dan tags: trunk)
17:01
Enhancements to the Win32 API definition macros. (check-in: b1811baa user: mistachkin tags: cygwinTempPath)
14:56
Reenable a test accidentally disabled when the stat4 branch was merged. (check-in: d9fadc8f user: dan tags: trunk)
05:46
Avoid commenting out #include statements when building the amalgamation source code file. (check-in: 2fca6d78 user: mistachkin tags: cygwinTempPath)
05:13
Fix harmless MSVC compiler warning with MEMDEBUG defined. (check-in: b48cfd2d user: mistachkin tags: cygwinTempPath)
02:48
Improve the consistency of the diagnostic messages on Windows. (check-in: c6f174a0 user: mistachkin tags: cygwinTempPath)
2013-08-30
21:52
Add support for Cygwin when handling temporary file names. Improve error codes and diagnostic messages for temporary file name handling on Windows. Rename winConvertUtf8Filename to winConvertFromUtf8Filename. Improve placement and comments for forward function declarations. (check-in: a411df72 user: mistachkin tags: cygwinTempPath)
20:19
Fix compiler warnings in analyze.c. (check-in: 5bbd2ccb user: dan tags: trunk)
19:59
Fix comment typo in analyze.c. No changes to code. (check-in: dbc31750 user: mistachkin tags: trunk)
17:50
Fix comment typos in the where.c module. No code changes. (check-in: 1e0b77cf user: drh tags: trunk)
17:35
If the cost of two whereLoop objects is the same in every way except that one has fewer expected output rows than the other, then choose the one with fewer output rows. (check-in: 79e458ef user: drh tags: trunk)
14:24
Add the SQLITE_MINIMUM_FILE_DESCRIPTOR compile-time option, for control over exactly which low-numbered file descriptors SQLite will use. (check-in: ba519053 user: drh tags: trunk)
13:29
Add a test for fts4 unicode61 option remove_diacritics=0. (check-in: 6bf7ae6f user: dan tags: trunk)
06:20
Improvements to the robust_open() logic in the unix VFS so that if an attempt is made to open a repository on file descriptors 0, 1, or 2, and blocking that file descriptor by opening it on /dev/null fails, then the open will fail. (check-in: d9c018f8 user: drh tags: trunk)
2013-08-29
23:36
Make the unix VFS defensive against the error of having a database file open on file descriptors 1 or 2, as an error message might easily be written onto those file descriptors and thus overwrite and corrupt the database. (check-in: 30d38cc4 user: drh tags: trunk)
23:34
Change the unix VFS so that it refuses to open a database file using a file descriptor less than 3. (Closed-Leaf check-in: 66dddda0 user: drh tags: overwrite-avoidance)
21:26
Never leave an open file descriptor pointing into the middle of the database file if the file descriptor number is 2 or less. (check-in: 3426673e user: drh tags: overwrite-avoidance)
14:56
Restore fix [f15591f802], which was accidentally clobbered by the stat4 merge. (check-in: d4b6ad33 user: dan tags: trunk)
10:46
Candidate fix for [9f2eb3abac]: Have the whereShortCut() planner ignore indexes with more than four columns. (check-in: c1152bdc user: dan tags: trunk)
02:27
Disable several toreal() tests that require high floating point precision when it is unavailable. (check-in: b724219b user: mistachkin tags: toTypeFuncs)
01:17
Prevent the implementation of the toreal() SQL function from being 'optimized' by MSVC. (check-in: 047bd1c2 user: mistachkin tags: toTypeFuncs)
01:11
Merge updates from trunk. (check-in: 375dfe28 user: mistachkin tags: toTypeFuncs)
01:09
Small enhancements to unit testing infrastructure. (check-in: 9229aeb3 user: mistachkin tags: trunk)
01:03
Enable finer control of optimizations when compiling with the MSVC makefile. Also, several modularity enhancements to the MSVC makefile. (check-in: 6c709338 user: mistachkin tags: trunk)
01:01
Fix boundary case for the toreal() SQL function. (check-in: abe82c63 user: mistachkin tags: toTypeFuncs)
2013-08-28
19:01
Re-enable test file wild001.test. (check-in: 4f182ddc user: dan tags: trunk)
18:56
Merge updates from trunk. (check-in: ffc6e682 user: mistachkin tags: toTypeFuncs)
18:18
Add the win32-longpath VFS allowing windows filenames up to 32K characters in length. Remove unused code when -DSQLITE_MAX_MMAP_SIZE=0. Fix some compiler warnings on windows. (check-in: 12d0a885 user: drh tags: trunk)
18:06
Update list of supported Tcl shells to include 8.6. Remove stray OS2 references. (Closed-Leaf check-in: ecd52ccf user: mistachkin tags: mmapDisabled)
17:59
Fix a couple comments. (check-in: 945cb89e user: mistachkin tags: mmapDisabled)
16:27
In the query optimizer, when converting BETWEEN and LIKE/GLOB expressions into simpler forms for processing, be sure to transfer the LEFT JOIN markings. Fix for ticket [bc878246eafe0f52c]. (check-in: caab361e user: drh tags: trunk)
13:46
Increase the version number to 3.8.1 due to the addition of STAT4 support. (check-in: 41c089e2 user: drh tags: trunk)
13:33
Fix an off-by-one error that causes a quoted empty string at the end of a CRNL-terminated line of CSV input to be misread by the shell. (check-in: b5617e4f user: drh tags: trunk)
11:57
Add a test case for empty quoted field in CSV import in the shell. (check-in: 3df56e84 user: drh tags: trunk)
11:43
Label a certain branch as NEVER() only for non-STAT3/4 builds. (check-in: b5ccf6e9 user: drh tags: trunk)
07:42
In the win32longpath test, move the journal mode change down where it was intended to be. (check-in: 5cead293 user: mistachkin tags: mmapDisabled)
05:49
Support database file names longer than 260 characters using the new 'win32-longpath' VFS variant. (check-in: 37e85e44 user: mistachkin tags: mmapDisabled)
02:37
Make names of private functions in the Win32 VFS consistent. Fix comment typo in Win32 mutex implementation. (check-in: c3b82c5b user: mistachkin tags: mmapDisabled)
02:26
Remove hard-coding of the directory separator in the Win32 VFS. Fixes to OSTRACE macros. (check-in: fc98092f user: mistachkin tags: mmapDisabled)
01:54
Fix several harmless compiler warnings. Fix a couple compiler issues with the shell. (check-in: 8917e9f9 user: mistachkin tags: mmapDisabled)
2013-08-27
23:15
Adjust ANALYZE for improved test coverage. Use the SQLITE_ENABLE_STAT3_OR_STAT4 macro (created in sqliteInt.h) to conditionally include code, instead of a boolean specifying both macros separately. (check-in: 67a9a392 user: drh tags: trunk)
20:16
Reduce the amount of code run and memory used for ANALYZE in the common case where neither STAT3 and STAT4 are enabled. (check-in: 9d1424c9 user: drh tags: trunk)
15:41
Update sqlite3.pc.in to use @PACKAGE_VERSION@ instead of @RELEASE@. (check-in: 2460dfd8 user: dan tags: trunk)
14:14
In the ANALYZE command implementation make statInit() a 2-value function since the 3rd parameter was always the same constant. (check-in: 959bb5ac user: drh tags: trunk)
2013-08-26
23:18
Preparation for further Windows path name handling changes. (check-in: ec99224b user: mistachkin tags: mmapDisabled)
23:18
Merge the STAT4 capability into trunk. (check-in: a32af0ab user: drh tags: trunk)
20:45
Change MAX_PATH related defines to use character lengths where WCHARs are used. (check-in: 0a497083 user: mistachkin tags: mmapDisabled)
19:36
Merge updates from trunk. (check-in: 9d686009 user: mistachkin tags: mmapDisabled)
14:30
Fix for builds with both SQLITE_OMIT_WAL and SQLITE_MAX_MMAP_SIZE=0 defined. (check-in: edd5dbdc user: dan tags: trunk)
04:50
Version 3.8.0 (check-in: f64cd21e user: drh tags: trunk, release, version-3.8.0)
2013-08-24
23:55
Several modifications to the use of the MAX_PATH macro on Windows to improve consistency. (check-in: bda4c47d user: mistachkin tags: mmapDisabled)
01:12
Fix a couple compilation issues on Unix. (check-in: 25b029d8 user: mistachkin tags: mmapDisabled)
00:59
Unify the result of PRAGMA mmap_size when mmap support is disabled. (check-in: 032c3159 user: mistachkin tags: mmapDisabled)
2013-08-23
17:33
Adjust #ifdefs to get SQLITE_OMIT_AUTOMATIC_INDEX and SQLITE_OMIT_PAGER_PRAGMAS to build. (check-in: ed310201 user: drh tags: trunk)
16:47
Fix a requirements comment in a test case. No changes to the testcase itself nor to any code. (check-in: 3ad1f998 user: drh tags: trunk)
12:04
Modify script mkautoconfamal.sh to use the download.html naming convention for the tar.gz it creates. (check-in: 375b4e3d user: dan tags: trunk)
2013-08-22
02:56
Defer the creation of automatic indices until the index is actually used. (check-in: 0775501a user: drh tags: trunk)
2013-08-21
23:42
Simplify the btreeGetPage() routine so that it uses a single flag parameter in place of two boolean parameters. (check-in: 617e23ec user: drh tags: trunk)
22:54
Minor performance tweaks to the pager. (check-in: 9ae1f9ce user: drh tags: trunk)
22:09
Refactor the sqlite3_randomness() implementation for improved performance. (check-in: 4144dffb user: drh tags: trunk)
21:12
Simplification to the StrAccum object and the sqlite3StrAccumAppend() method that also results in slightly better performance. (check-in: 700dbbea user: drh tags: trunk)
20:04
Minor fixes for test cases. No code changes. (check-in: ef2a6a37 user: dan tags: trunk)
19:59
Fix typo in test. (check-in: f9859fe9 user: mistachkin tags: trunk)
19:13
Update sqlite3MemCompare() to try common cases first, for a modest speed improvement. (check-in: b25bac79 user: drh tags: trunk)
17:35
If a virtual table xSync() returns an error message, copy it into a buffer allocated by sqlite3DbMalloc() before transfering it to Vdbe.zErrMsg. (check-in: 854ba304 user: dan tags: trunk)
15:52
Performance enhancement in btreeParseCellPtr(). (check-in: a17190a2 user: drh tags: trunk)
15:45
Fix an FTS4 problem introduced by [361084e1eb]. (check-in: 5f35c8cb user: dan tags: trunk)
12:04
Candidate fix for [d666d600a6]. (check-in: 781592f3 user: dan tags: trunk)
07:25
Fix a minor problem in progress.test. No code changes. (check-in: a95ae93b user: dan tags: trunk)
2013-08-20
20:25
Fix a couple of test scripts to work with DEFAULT_AUTOVACUUM and OMIT_VIRTUALTABLE. (check-in: 356c6c59 user: dan tags: trunk)
17:14
Fix an invalid assert() in where.c. Also a crash that can occur in the EXPLAIN QUERY PLAN code under obscure circumstances. (check-in: ef192abb user: dan tags: trunk)
17:00
Ignore IS NOT NULL and NOT NULL constraints on NOT NULL columns. (check-in: e476408e user: drh tags: trunk)
16:08
Test script changes to support testing sqlite3_interrupt(). (check-in: 0cede9f8 user: dan tags: trunk)
09:26
Add test cases for tointeger() and toreal() functions. Fixes for several tests. (check-in: 5e1e9fd5 user: mistachkin tags: toTypeFuncs)
03:13
Performance optimizations in the VDBE and especially to the OP_Next and related opcodes and in the sqlite3BtreeNext() and sqlite3BtreePrevious() routines. This is a cherrypick of [6f99b54aedeb], [d2efea1682a7], and [d78c5d89de4b]. (check-in: 7f72fc4f user: drh tags: trunk)
02:07
Fix compiler warnings and boundary cases for the tointeger() and toreal() functions. (check-in: 4438b986 user: drh tags: toTypeFuncs)
00:42
Performance optimizations in the VDBE and especially to the OP_Next and related opcodes. (check-in: d78c5d89 user: drh tags: toTypeFuncs)
2013-08-19
23:18
Performance improvement to SQL function calls in the VDBE. (check-in: d2efea16 user: drh tags: toTypeFuncs)
22:22
Additional performance improvements in sqlite3BtreeNext() and sqlite3BtreePrevious(). (check-in: 6f99b54a user: drh tags: toTypeFuncs)
21:15
Add tointeger() and toreal() SQL functions. (check-in: af497072 user: mistachkin tags: toTypeFuncs)
20:04
Performance improvement in sqlite3BtreeNext() and sqlite3BtreePrevious() for the common case of a valid cursor. (check-in: dc65ad8c user: drh tags: trunk)
19:29
Initialize a variable in fts3_write.c on the grounds that the argument required to show that it does not require initialization with is complicated. Add an assert() to where.c to silence a clang scan-build warning. (check-in: d6c4d48a user: dan tags: trunk)
18:37
Fix test script pragma2.test so that it works with ENABLE_MEMORY_MANAGEMENT. (check-in: 6acf7281 user: dan tags: trunk)
18:17
Add some extra assert() statements to silence a few clang warnings. (check-in: 1c63e951 user: dan tags: trunk)
14:23
Remove unused variables from the command-line shell sources. (check-in: 753a402e user: drh tags: trunk)
14:19
Fix a potential reference off the end of an array in the query planner. (check-in: f15591f8 user: drh tags: trunk)
11:15
Fixes for harmless compiler warnings. (check-in: a0d9ca4f user: drh tags: trunk)
2013-08-17
18:57
Adjustments to #ifdefs in analyze.c to all a clean compile with no extra code with both ENABLE_STAT3 and ENABLE_STAT4 and with neither. (Closed-Leaf check-in: f86b75b6 user: drh tags: sqlite_stat4)
16:37
Add the cache_spill pragma. Change the fullfsync and checkpoint_fullfsync pragmas to apply to all attached databases. (check-in: 65a85a15 user: drh tags: trunk)
15:42
The fullfsync, checkpoint_fullfsync, and cache_spill pragmas apply to all files of a database connection, including those opened by future ATTACH statements. (Closed-Leaf check-in: d07c4331 user: drh tags: cache_spill)
00:25
Test cases for the cache_spill pragma. (check-in: b85c9ec5 user: drh tags: cache_spill)
2013-08-16
20:42
Add the cache_spill pragma. (check-in: cdb181c0 user: drh tags: cache_spill)
17:46
Add a test for the problem fixed by [91733bc485]. (check-in: 5c591104 user: dan tags: sqlite_stat4)
17:18
In sqlite3Stat4ProbeSetValue() change a local variable name iVar to iBindVar to avoid confusion with iVal, and fix a place where the name was actually confused. (check-in: 91733bc4 user: drh tags: sqlite_stat4)
14:51
Merge the fork that resulted from a check-in race. (check-in: b7fe4f36 user: drh tags: sqlite_stat4)
14:49
Fix valueFromExpr() so that it returns SQLITE_NOMEM following an OOM when changing text encodings. Also fix some asserts to accommodate OOM errors. (check-in: dc1ccd09 user: drh tags: sqlite_stat4)
14:48
Fixes for test code that was not working with utf16 databases. Run the analyze*.test scripts as part of the 'utf16' permutation test. (check-in: fe99494d user: dan tags: sqlite_stat4)
14:23
Add extra tests. No code changes. (check-in: 949127d5 user: dan tags: sqlite_stat4)
14:09
Avoid buffer overreads and false OOM error reports that could be caused by corrupted sample records in the sqlite_stat4 table. (check-in: 9f85b6a5 user: dan tags: sqlite_stat4)
13:34
Fix a potential segfault following an OOM while running ANALYZE. (check-in: 01187978 user: drh tags: sqlite_stat4)
12:26
Merge recent trunk changes into the STAT4 branch. (check-in: c69b512a user: drh tags: sqlite_stat4)
2013-08-15
22:40
Make sure that GROUP BY terms select input column names in preference to output column names, in compliance with the SQL standard. Ticket [1c69be2dafc28]. (check-in: f2d175f9 user: drh tags: trunk)
20:24
Bare identifiers in ORDER BY clauses bind more tightly to output column name, but identifiers in expressions bind more tightly to input column names. This is a compromise between SQL92 and SQL99 behavior and is what PostgreSQL and MS-SQL do. Ticket [f617ea3125e9c]. (check-in: c78b357c user: drh tags: trunk)
20:05
Make it easy to attach a debugger the test fixture process prior to any tests being run. (check-in: 53cd9ebf user: mistachkin tags: trunk)
19:56
Fix a crash that can occur if the sqlite_stat3 or sqlite_stat4 table is corrupt. (check-in: d51df8a8 user: dan tags: sqlite_stat4)
18:43
Fix a crash that can occur following an OOM fault. (check-in: 9f80b268 user: dan tags: sqlite_stat4)
16:18
Change some assert() statements in vdbe.c to ensure that a memory cell used to store a VdbeCursor object is not also used for some other purpose. (check-in: 71070c9f user: dan tags: sqlite_stat4)
16:15
Make sure the ANALYZE command allocates enough VDBE registers. (check-in: 46fec9b1 user: drh tags: sqlite_stat4)
14:39
Add tests for sqlite_stat4 sample selection. And a fix for the same. (check-in: 1fb4d9d6 user: dan tags: sqlite_stat4)
14:27
Clarification and typo fixes in comments related to name resolution. No changes to code. (check-in: f30abdf9 user: drh tags: trunk)
08:06
Make it easy to attach a debugger the test fixture process prior to any tests being run. (Closed-Leaf check-in: c23acba1 user: mistachkin tags: dbgTestFixture)
2013-08-14
19:54
Change the way ANALYZE works to use a single cursor when scanning indices. (check-in: bdce612b user: dan tags: sqlite_stat4)
00:20
Fix a few more minor comment typos. No changes to code. (check-in: 9e999081 user: mistachkin tags: trunk)
2013-08-13
22:33
Fix an outdated comment and a comment typo. No changes to code. (check-in: ac336959 user: mistachkin tags: trunk)
2013-08-12
20:14
If ENABLE_STAT3 is defined but ENABLE_STAT4 is not, have ANALYZE create and populate the sqlite_stat3 table instead of sqlite_stat4. (check-in: cca8bf43 user: dan tags: sqlite_stat4)
17:31
If there is data in both the sqlite_stat4 and sqlite_stat3 tables for a single index, ignore the sqlite_stat3 records. (check-in: 2a417367 user: dan tags: sqlite_stat4)
17:00
Handle a NULL input to decodeIntArray() that can result from a prior OOM. (check-in: fa1588ad user: drh tags: sqlite_stat4)
16:34
Re-enable reading from the sqlite_stat3 table (as well as sqlite_stat4). (check-in: 6d45078e user: dan tags: sqlite_stat4)
11:21
Fix a bug in calculating the average number of entries for keys not present in the sqlite_stat4 table. (check-in: ec3ffb17 user: dan tags: sqlite_stat4)
09:29
Fix minor problems caused by adding the rowid to the records in stat4. (check-in: 088d1ff9 user: dan tags: sqlite_stat4)
2013-08-10
19:08
Add the rowid field to the end of sample records stored in the sqlite_stat4 table. (check-in: 3a5e8ab7 user: dan tags: sqlite_stat4)
2013-08-09
19:04
Fix a couple of typos in a comment in analyze.c. No code changes. (check-in: 5bcccb93 user: dan tags: sqlite_stat4)
14:07
Update the header comment on analyze.c to describe the sqlite_stat4 table format. (check-in: 4d97809d user: drh tags: sqlite_stat4)
2013-08-08
19:38
Fix problems in estimating the number of rows visited by a range query using sqlite_stat4 data when the column subject to the range query is not the leftmost of the index. (check-in: 9228aaf5 user: dan tags: sqlite_stat4)
16:17
Use a binary search instead of a linear scan when comparing a sample key against data from the sqlite_stat4 table. (check-in: e50dc305 user: dan tags: sqlite_stat4)
14:38
If the SQLITE_EXTRA_INIT function is defined, make sure it is called only once by the effective sqlite3_initialize() call. (check-in: e2b597ca user: drh tags: trunk)
12:21
Fix a segfault in "ALTER TABLE t1 ADD COLUMN b DEFAULT (-+1)". Also an assert() failure that could occur if SQLITE_ENABLE_STAT4 were not defined. (check-in: 9fec3e38 user: dan tags: sqlite_stat4)
11:48
Fix a bug in using stat4 data to estimate the number of rows selected by a range constraint. (check-in: f783938e user: dan tags: sqlite_stat4)
2013-08-07
23:15
If the SQLITE_ALLOW_URI_AUTHORITY compile-time option is set, then allow non-localhost authorities on URI filenames and pass them through as a UNC to the underlying VFS. (check-in: 3adb6c1b user: drh tags: trunk)
19:46
Replace variable Index.avgEq (average number of rows in keys for which there is no sample in sqlite_stat4) with vector Index.aAvgEq. (check-in: 7b70b419 user: dan tags: sqlite_stat4)
18:42
Merge latest trunk changes with this branch. (check-in: 08f74c45 user: dan tags: sqlite_stat4)
16:38
Fix typos in a comment in analyze.c. No code changes. (check-in: 812ed0c5 user: dan tags: sqlite_stat4)
16:15
Change the way samples for the sqlite_stat4 table are collected. (check-in: 13ed5ac1 user: dan tags: sqlite_stat4)
16:04
Fix the ".dump" command on the command-line shell so that it works for "sqlite_stat4" in addition to "sqlite_stat1". (check-in: 1e80c4b1 user: drh tags: sqlite_stat4)
15:57
Remove the unused sqlite3Utf8to16() utility function. (check-in: 9159b43e user: drh tags: sqlite_stat4)
15:52
When estimating the number of rows scanned using data from the sqlite_stat4 table, avoid allocating UnpackedRecord and KeyInfo structures until they are definitely required. (check-in: 353950a5 user: dan tags: sqlite_stat4)
14:18
Add a guard #ifndef to test_intarray.h to prevent harm if it is #included more than once. Add a comment on the closing #endif of the guards on sqlite3.h and test_multiplex.h. (check-in: 0ad83ceb user: drh tags: trunk)
01:18
Fix typos and add clarification to comments in where.c. No code changes. (check-in: f8d8790e user: drh tags: trunk)
2013-08-06
20:15
Fixes for builds without SQLITE_ENABLE_STAT4. (check-in: 84999e27 user: dan tags: sqlite_stat4)
20:01
When possible, use the multi-column samples in sqlite_stat4 to estimate the number of index rows scanned by a query plan. (check-in: 2973f5ca user: dan tags: sqlite_stat4)
19:18
Fix a test case related to partial indices so that it works even if STAT3 is disabled. (check-in: 153c6450 user: drh tags: trunk)
18:35
Adjust #ifdefs in test_autoext.c so that it compiles with SQLITE_OMIT_LOAD_EXTENSION. Fix compiler warnings in two other test modules. No changes to the core. (check-in: 89930ea3 user: drh tags: trunk)
18:21
Update the configure script to use the latest version number (3.8.0). (check-in: 52e8ec5e user: drh tags: trunk)
17:24
Add a testcase() macro to verify OOM coverage. (check-in: d43dcbc4 user: drh tags: trunk)
16:56
Remove unreachable branches in expr.c, replacing them with assert() and testcase() statements. (check-in: 9103c27c user: drh tags: trunk)
14:36
For the ".import" command of the command-line shell, start a transaction if there is not one active already. (check-in: 5dcc2d91 user: drh tags: trunk)
14:01
Clean up the input reader in the command-line shell for improved legibility and performance. (check-in: 2b1743d6 user: drh tags: trunk)
07:45
More than double the speed of the resolveP2Values() routine in vdbeaux.c by moving from an extended if-else on every opcode to a switch. Opcodes are reordered in mkopcodesh.awk to put the switched opcodes close together, for additional performance and to reduce code footprint. (check-in: 924f7e4d user: drh tags: trunk)
2013-08-05
22:05
Performance optimization: Avoid calling convertCompoundSelecctToSubquery() on queries that do not use the UNION, EXCEPT, or INTERSECT operators. (check-in: c589b2fe user: drh tags: trunk)
21:54
For the vtshim module, always zero out the xChildDestroy function pointer after calling it. (check-in: 240f7252 user: mistachkin tags: trunk)
19:11
Factor all KeyInfo object allocations into a single function: sqlite3KeyInfoAlloc(). Always allocate enough space so that sqlite3VdbeRecordCompare() can avoid checking boundaries and hence run faster. (check-in: 7301bedd user: drh tags: trunk)
19:04
Modify the vdbe code generated by ANALYZE to use fewer memory cells and cursor slots. (check-in: 4a51cf28 user: dan tags: sqlite_stat4)
18:00
Use N separate cursors when scanning an index with N columns to collect sqlite_stat4 data. This fixes a problem with collecting incorrect nEq values from multi-column indexes. (check-in: 3a71afe6 user: dan tags: sqlite_stat4)
15:32
Improve performance of sqlite3VdbeRecordCompare() by using an approximation that might give false negatives and only running the more expensive exact subexpression if the approximation fails. (check-in: 28979dcd user: drh tags: trunk)
12:31
Add a missing '#include "tcl.h"' to test_rtree.c. (check-in: 4b8b426f user: drh tags: trunk)
05:34
Fix a couple of problems in code related to sqlite_stat4. (check-in: badd24d9 user: dan tags: sqlite_stat4)
2013-08-03
20:24
Begin adding experimental sqlite_stat4 table. This commit is buggy. (check-in: 2beea303 user: dan tags: sqlite_stat4)
2013-08-02
23:40
Updates to requirements marks. No code changes. (check-in: 21302076 user: drh tags: trunk)
20:11
Add NEVER() and ALWAYS() macros on some unreachable yet prudent branches. (check-in: c5c0a8ab user: drh tags: trunk)
16:41
Add support for partial indices. (check-in: 478113f1 user: drh tags: trunk)
14:18
Silently ignore database name qualifiers in CHECK constraints and in partial index WHERE clauses. (Closed-Leaf check-in: 2e8c845e user: drh tags: partial-indices)
13:31
Fix typos in documentation for SQLITE_DBSTATUS_DEFERRED_FKS . No changes to code. (check-in: f3efbfcd user: drh tags: trunk)
2013-08-01
22:27
Fix the CREATE INDEX statement so that trying to create a TEMP index on a non-TEMP table throws an error rather than segfaulting. (check-in: e3c8935f user: drh tags: trunk)
22:26
Fix an incorrect expected result in a test case in corruptG.test. (check-in: 6913831a user: drh tags: trunk)
20:26
Fix a potential buffer overread in sqlite3VdbeRecordCompare() when a serial_type specifies a field that starts in bounds but is much too large for the allocated buffer. Mostly harmless. The overread is unlikely to go more than one or two bytes past the end of the buffer. (check-in: e436b2f4 user: drh tags: trunk)
19:17
Make sure signed integer overflow does not cause a segfault while attempting to read a corrupt database where the header size varint on a record is larger than the maximum 32-bit signed integer. (check-in: c3baca99 user: drh tags: trunk)
17:43
Add test case for the problem fixed by [127a5b776d]. (check-in: 65816718 user: dan tags: trunk)
17:21
An improved method for avoiding the use of the STAT3 samples to compute the estimated number of outputs when the left-most index is equality constrained. This check-in undoes the previous fix and applies a new one. (check-in: 127a5b77 user: drh tags: trunk)
16:52
Avoid using left-most column STAT3 samples if the left-most column has an equality constrain and there are inequality constraints on the second column. (check-in: 31b4e63b user: drh tags: trunk)
16:02
Fix bug in the logic that determines the end of a CREATE INDEX statement. Added a VACUUM test case that exposed the bug. (check-in: 2e3df0bc user: drh tags: partial-indices)
15:09
More test cases and corresponding bug fixes. (check-in: 0c8cfdfa user: drh tags: partial-indices)
13:04
Fill out an initial implementation of the sqlite3ExprImpliesExpr() function. (check-in: 8e07aa2a user: drh tags: partial-indices)
12:21
Refactor internal function name sqlite3VdbeGetValue() to sqlite3VdbeGetBoundValue(). (check-in: 81834c30 user: drh tags: partial-indices)
04:39
Fix the ANALYZE command to work with partial indices. (check-in: 60353124 user: drh tags: partial-indices)
03:36
Test cases and bug fixes for the partial index logic. (check-in: 6b73ae7c user: drh tags: partial-indices)
01:14
Add the logic to keep partial indices up to date through DML statements and when new partial indices are created. This new logic is untested except to verify that it does not interfere with full indices. (check-in: fb9044d1 user: drh tags: partial-indices)
2013-07-31
23:28
Limit the number of memset() calls used when determining a temporary file name on Windows. Also, fix a harmless compiler warning. (check-in: 136fc293 user: mistachkin tags: trunk)
23:22
Add logic to the query planner to only use partial indices if the WHERE clause constrains the search to rows covered by the partial index. This is just infrastructure. The key routine, sqlite3ExprImpliesExpr(), is currently a no-op so that partial indices will never be used. (check-in: 8ca3eac1 user: drh tags: partial-indices)
22:39
Slight modifications to path name translation handling for Cygwin. (check-in: 33ba1f4c user: mistachkin tags: trunk)
22:27
Use a new error code to represent a failure to get the configured temporary directory on Windows. (check-in: c93d891b user: mistachkin tags: trunk)
19:55
The MAX_PATH constant in windows is measured in characters, so multiple by 3 to get the number of bytes assuming worst-case UTF8 pathnames. (check-in: bb06e157 user: drh tags: trunk)
19:05
Resolve names in CREATE INDEX WHERE clauses and detect errors. Disallow expressions that contain variables, subqueries, or functions. The expression is still not used for anything, however. still unused. (check-in: f2aa7842 user: drh tags: partial-indices)
18:12
Here begins an experimental branch for exploring the idea of a partial index. This check-in is able to parse a WHERE clause on a CREATE INDEX statement, but does not actually do anythingn with that WHERE clause yet. (check-in: 6794b2dc user: drh tags: partial-indices)
2013-07-30
15:10
Reduce the size of the stack required by the codeOneLoopStart() function in where.c. (check-in: eb6d4278 user: drh tags: trunk)
2013-07-29
19:03
For the MSVC makefile, recompile vdbe.lo and parse.lo first. (check-in: 9e819f0f user: mistachkin tags: trunk)
15:54
Comment and preprocessor macro cleanup. (check-in: c0809b5e user: drh tags: trunk)
13:51
In main.mk, always recompile vdbe.o and parse.o first, since changes to either parse.y or vdbe.c will cause all files to be recompiled and if there are syntax errors in vdbe.c or parse.y we want to hit them early in the compile process. (check-in: a94a66d1 user: drh tags: trunk)
2013-07-25
17:07
In the command-line shell, work around the fact that popen() and pclose() are not defined in stdio.h. in C89 and later. (check-in: 8bcbb33f user: drh tags: trunk)
16:41
Fix a typo in main.c: SQLITE_DEAULT_AUTOMATIC_INDEX -> SQLITE_DEFAULT_AUTOMATIC_INDEX (check-in: cc78e21c user: dan tags: trunk)
16:27
Enhance the progress handler so that it keeps track of the number of VDBE cycles across sqlite3_step() calls and issues callbacks when the cumulative instruction count reaches threshold. (check-in: 4698a82e user: drh tags: trunk)
2013-07-20
00:39
Merge updates from trunk. (check-in: dd4b77c8 user: mistachkin tags: toTypeFuncs)
00:34
Add 'queryplantest' target to the MSVC makefile. (check-in: ad0551e0 user: mistachkin tags: trunk)
2013-07-19
23:58
Fixes to test numbering. (check-in: f755b4b2 user: mistachkin tags: trunk)
2013-07-18
20:28
Remove unused "codec" code from the command-line shell. (check-in: 37abfe0c user: drh tags: trunk)
18:45
Improved documentation for sqlite3_set_auxdata(). Ticket [406d3b2ef91c]. (check-in: 62465ecb user: drh tags: trunk)
18:29
Ensure that all auxiliary data registered by calls to sqlite3_set_auxdata() is destroyed when the VM is halted. (check-in: 153deac8 user: dan tags: trunk)
18:28
Fix a typo in the previous commit. (Closed-Leaf check-in: cd9096e6 user: dan tags: typo)
17:12
Ensure that all auxiliary data registered by calls to sqlite3_set_auxdata() is destroyed when the VM is halted. Partial fix for [406d3b2ef9]. DRH adds: Stray text accidentally inserted into vdbe.c just prior to the commit breaks the build. (check-in: 71effa59 user: dan tags: typo)
14:50
Fix a 8-byte alignment problem in the query planner that might cause problems on sparc when compiled with -m32. (check-in: 5dcffa67 user: drh tags: trunk)
14:16
Documentation changes to warn that sqlite3_set_auxdata() might call the destructor even before it returns. Also fix the regexp extension to deal with that case. Ticket [406d3b2ef91c]. (check-in: 7acc8cd3 user: drh tags: trunk)
2013-07-17
21:08
Fix copy/paste errors in comments in the transitive_closure virtual table. No changes to code. (check-in: b1b0de29 user: drh tags: trunk)
18:12
Enhance the sqlite3_analyzer tool to give reports on the sizes of individual indices. (check-in: 3b4096cc user: drh tags: trunk)
11:54
Clear the error string pointer in sqlite3_vtab object after the error string is transferred to SQLite. Ticket [78588b938a11]. (check-in: 64bf8148 user: drh tags: trunk)
2013-07-16
23:26
Make sure the sqlite3_prepare16 and sqlite3_prepare16_v2 interfaces do not read past a zero-terminator if the nBytes parameter is too large. (check-in: 20dba3a7 user: drh tags: trunk)
21:31
Enhance the query planner so that it looks at multiple solutions to OR expressions in the WHERE clause. (check-in: 5e19d054 user: drh tags: trunk)
2013-07-15
17:02
Add the sqlite3_cancel_auto_extension(X) interface which will undo a prior call to sqlite3_auto_extension(X). (check-in: cdce87eb user: drh tags: trunk)
2013-07-12
21:09
Make sure the shell does not try to put a zero terminator on the end of an unallocated zero-length string when running ".import" on an empty file. (check-in: 92adaee5 user: drh tags: trunk)
2013-07-11
19:04
Change the description of how sqlite3_progress_handler() works so that the N parameter is "approximate". This aligns with the current implementation. This is a documentation change only. No changes to code. (check-in: 7d829bde user: drh tags: trunk)
15:22
Add the experimental "query_only" pragma. (check-in: 6557c407 user: drh tags: trunk)
15:03
Add the "defer_foreign_keys" pragma and the SQLITE_DBSTATUS_DEFERRED_FKS value for sqlite3_db_status(). This is a cherry-pick of a sequence of five checkins in the sessions branch between [1d44e5d3c2] and [d39e65fe70]. (check-in: 527121ac user: drh tags: trunk)
03:09
Environment variable names in nmake must be in all uppercase. (check-in: 0328e873 user: mistachkin tags: vsix2013)
2013-07-10
21:33
More corrections to VS 2013 integration. (check-in: 7a8b0e36 user: mistachkin tags: vsix2013)
19:53
Use the VisualStudioVersion variable instead of _MSC_VER. (check-in: 603e9db8 user: mistachkin tags: vsix2013)
19:39
More changes to support MSVC 18. (check-in: 29c458e2 user: mistachkin tags: vsix2013)
18:14
Fix harmless compiler warnings in the progress callback logic. (check-in: 908141d5 user: drh tags: trunk)
13:33
Experimental "PRAGMA query_only=BOOLEAN" statement that is able to turn write capabilities on and off. (Closed-Leaf check-in: ece960c4 user: drh tags: query_only)
03:05
Run progress callback checks less frequently in the main VDBE evaluation loop. This makes up for the extra CPU cycles used to increment the cycle counter for SQLITE_STMTSTATUS_VM_STEP. (check-in: 3e8b0201 user: drh tags: trunk)
2013-07-09
15:56
Adjust the costs in the xBestIndex function of the spellfix1 virtual table to force the use of the MATCH term if it is available. (check-in: f003bea9 user: drh tags: trunk)
12:36
Modify several extensions to use the new exported function naming. Fix some shared library compilation issues. (check-in: 1e39f850 user: drh tags: trunk)
03:04
Make sure the schema is verified prior to processing a "WHERE 0" on the first term of a compound SELECT statement. Fix for ticket [490a4b723562429] (check-in: 52a49cbc user: drh tags: trunk)
2013-07-08
22:33
Make sure an adequate number of digits are shown for binary-to-text rendering of very small floating point values. (check-in: 776e65f9 user: drh tags: trunk)
21:12
Fix an adverse interaction between the IS NOT NULL optimization (available only with SQLITE_ENABLE_STAT3) and the transitive constraint processing. Fix for ticket [d805526eae253] (check-in: 3b30b75b user: drh tags: trunk)
01:27
Add an optional 5th parameter to the next_char() function that is the collating sequence to use for comparison. (check-in: 9415db6e user: drh tags: trunk)
2013-07-06
18:07
Fixes for test cases running in the "mmap" permutation. (check-in: cdb97d41 user: dan tags: trunk)
17:57
Drop any existing mapping of the database file when exiting the pager "error state", as it may at this point be too large for the database file. Do not invoke file-control MMAP_SIZE if the database file handle does not support xFetch and xUnfetch (on the grounds that xUnfetch(0) calls to invalidate the mapping cannot be made). (check-in: 0ae7e75b user: dan tags: trunk)
2013-07-05
19:16
Fix two test script problems revealed by permutations.test. (check-in: 60cf7e44 user: dan tags: trunk)
16:54
Replace an erroneous SQLITE_OMIT_VIRTUAL_TABLE in vdbeaux.c with SQLITE_OMIT_WAL. Also fix some test script problems. (check-in: ff8c3f78 user: dan tags: trunk)
11:10
Add missing "static" qualifier to functions in where.c. (check-in: 5c906e91 user: dan tags: trunk)
10:46
Make a couple of implicit casts explicit to fix compiler warnings. (check-in: 9676280a user: dan tags: trunk)
2013-07-04
23:53
Modify several extensions to use the new exported function naming. Fix some shared library compilation issues. (Closed-Leaf check-in: f2ab8747 user: mistachkin tags: extRefactor)
2013-07-02
15:25
Remove a surplus local variable (check-in: 91bc840e user: drh tags: trunk)
10:06
Fix a minor typo in a comment in where.c. (check-in: 4a9d51e7 user: dan tags: trunk)
00:06
Fix harmless typos in comments of two extensions. (check-in: 1c3ed47b user: drh tags: trunk)
2013-07-01
20:02
Add a query planner test case submitted by Elan Feingold and based on the Plex project. (check-in: 3d49c593 user: drh tags: trunk)
17:27
Add a missing test that prevented double LEFT JOINs with transitive constraints from working correctly. Fix for ticket [868145d012]. (check-in: 72919ec3 user: drh tags: trunk)
11:05
Further minor comment corrections and enhancements in where.c. (check-in: 0d68d4d0 user: drh tags: trunk)
10:38
Make a trivial comment fix in where.c. (check-in: 0ffaab3b user: drh tags: trunk)
2013-06-30
20:24
Fix an issue in the command-line shell with CSV import of rows with empty columns. (check-in: 60b65e5e user: drh tags: trunk)
2013-06-29
15:40
Fix the build of the command-line shell on windows. Windows uses "_pclose" rather than "pclose" as the pointer to the function that closes a popen pipe. (check-in: b003b2b2 user: drh tags: trunk)
2013-06-28
23:55
Issue the new SQLITE_WARNING_AUTOINDEX warning on the SQLite log whenever an automatic index is created. (check-in: 338826ef user: drh tags: trunk)
21:12
Add the SQLITE_DEFAULT_AUTOMATIC_INDEX compile-time option, which if set to zero turns automatic indices off by default. Increase the estimated cost of an automatic index. Additional minor refactoring of the automatic index code. (check-in: 459b3179 user: drh tags: trunk)
19:41
Allow read transactions to be freely opened and closed by SQL statements run from within the implementation of user-functions if the user-function is called by a SELECT statement that does not access any database tables (e.g. "SELECT user_function();"). (check-in: f308c485 user: dan tags: trunk)
17:29
Add a bit to the SQLITE_TESTCTRL_OPTIMIZATIONS option for sqlite3_file_control() that will disable the use of SQLITE_STAT3 information in the query planner. (check-in: 60c19b86 user: drh tags: trunk)
13:43
Fix an issue with the OmitNoopJoin optimization and add test cases that are specifically for that optimization. (check-in: 5480d124 user: drh tags: trunk)
01:24
Refactor the Vdbe.noIO field as Vdbe.bIsReader. The meaning is inverted. (check-in: 59f98c5c user: drh tags: trunk)
2013-06-27
23:54
Refactor names of fields in the sqlite3 object: "activeVdbeCnt" becomes "nVdbeActive". Related fields becomes "nVdbeRead", "nVdbeWrite", and "nVdbeExec". (check-in: 14f79696 user: drh tags: trunk)
19:12
Fix an error in e_expr.test. (check-in: fd4ece18 user: dan tags: trunk)
17:40
Make sure that sqlite3_stmt_readonly reports false for PRAGMA journal_mode and PRAGMA wal_checkpoint. Ticket [a589ec069e3]. Also keep track of whether a prepared statement does no reading or writing. (check-in: 1937fd8e user: drh tags: trunk)
14:24
Add a test to ensure that if BEGIN IMMEDIATE fails with SQLITE_BUSY, it does not leave the user with an open read transaction (unless one was already open). (check-in: 22bced36 user: dan tags: trunk)
14:07
If the filename argument to the ".import" command in the command-line shell begins with '|' then treat it as an input pipe rather than a file. (check-in: 4c02b344 user: drh tags: trunk)
13:26
Improved handling of backslash escapes on double-quoted arguments to dot-commands in the command-line shell. (check-in: 656a1fe5 user: drh tags: trunk)
13:01
The undocumented and unsupported ".selftest" command in the command-line shell utility is now only available if compiled with SQLITE_DEBUG. Also fix a windows compiler warning in that command. (check-in: e88fd5b2 user: drh tags: trunk)
11:46
Add extended error code SQLITE_BUSY_SNAPSHOT - returned in WAL mode when a read-transaction cannot be upgraded to a write-transaction because it is reading from a snapshot other than the most recently committed. (check-in: 361c2296 user: dan tags: trunk)
2013-06-26
22:46
Update the ".import" command of the command-line shell so that it can accept field values that span multiple lines and so that it issues error messages if the input text does not strictly conform to RFC4180. (check-in: 93f63215 user: drh tags: trunk)
18:04
Add the "vtshim" extension, implementing a wrapper around the virtual table interface to make it Disposable for the CLR. No changes to the core. (check-in: 6c3839ef user: drh tags: trunk)
16:30
Update the boundary3.tcl script so that it can be run with tcl 8.5 or 8.6 to regenerate boundary3.test. (check-in: ebac5afa user: dan tags: trunk)
13:22
Add the SQLITE_STMTSTATUS_VM_STEPS option for sqlite3_stmt_status(). (check-in: bd4267f1 user: drh tags: trunk)
11:49
Omit tables from the FROM clause of a join if their presence makes no difference in the final output. (check-in: 6505e2ab user: drh tags: trunk)
11:43
Cut over the next generation query planner. Increase the version number to 3.8.0. (check-in: 0fe31f60 user: drh tags: trunk)
00:34
Fix an uninitialized variable detected by valgrind. Unclear whether or not this should apply to trunk. (Closed-Leaf check-in: 19ab4811 user: drh tags: nextgen-query-plan-exp)
2013-06-25
22:01
Add a new (experimental) sqlite3_stmt_status() verb that returns the number of VM steps. (Closed-Leaf check-in: f1366bab user: drh tags: status-vm-step)
2013-06-22
15:44
Add the ability to disable the omit-join-table optimization for testing purposes. (Closed-Leaf check-in: d929df9b user: drh tags: omit-join-table-opt)
2013-06-21
19:39
Enhance error message handling for the vtshim module. (Closed-Leaf check-in: b4a0d532 user: mistachkin tags: disposable-vtable)
19:29
Merge in the latest changes from trunk. Simplify the implementation of the tointeger() and toreal() functions. Fix test cases and put unambiguous labels on all testcase names. (check-in: 9b837b05 user: drh tags: toTypeFuncs)
18:36
Remove an unused function declaration from the FTS3 source code. (check-in: 096ae1d8 user: drh tags: trunk)
18:32
Merge updates from trunk. (check-in: fa2a91e6 user: mistachkin tags: toTypeFuncs)
18:29
Merge the fts4-notindexed branch with the trunk. (check-in: 361084e1 user: dan tags: trunk)
18:18
Add a few more tests for the fts4 notindexed option. (Closed-Leaf check-in: b53c0c41 user: dan tags: fts4-notindexed)
17:30
Add the "notindexed" option to fts4. (check-in: 8ff2b8f5 user: dan tags: fts4-notindexed)
07:54