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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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100 ancestors of [3e0590de]

2015-03-16
16:28
When estimating the number of rows visited by a range scan for which the keys consist of more than one field, consider prefixes of stat4 samples as well as the full samples. This generates more accurate estimates. check-in: 3e0590de user: dan tags: trunk
13:48
Use #ifdef to omit code that is only used for STAT3 and STAT4. check-in: f2c9c5b5 user: drh tags: trunk
09:21
Another test case for the planner change on this branch. Closed-Leaf check-in: f2207a06 user: dan tags: stat4-change
2015-03-14
18:59
When estimating the number of rows visited by a range scan for which the keys consist of more than one field, consider prefixes of stat4 samples as well as the full samples. check-in: e1caf93c user: dan tags: stat4-change
2015-03-13
15:44
Add tests to ensure "PRAGMA incremental_vacuum" and "PRAGMA auto_vacuum = incremental" handle corrupt databases correctly. check-in: 1c2166cb user: dan tags: trunk
08:31
Extra tests for commit [0f250957]. check-in: 5aa522dc user: dan tags: trunk
00:11
Remove debugging logic accidently included in the previous check-in. check-in: 2887fb38 user: drh tags: trunk
2015-03-12
23:48
Fix the "now" option for date-time functions for cases when STAT4 is disabled. check-in: 3ac1f6a3 user: drh tags: trunk
21:22
When STAT4 is enabled, allow probes of the STAT4 table using the value of constant functions computed at compile-time. check-in: 0f250957 user: drh tags: trunk
21:02
Always disallow functions as the DEFAULT of a column. Add assert()s and Closed-Leaf check-in: a991bb1a user: drh tags: stat4-function
19:12
Disable multiplexing of master-journal files in the test_multiplex.c module. check-in: b8684df3 user: dan tags: trunk
18:38
If an error occurs in the compile-time evaluation of an application-defined function, then propagate back out the exact error code, not just the generic SQLITE_ERROR. check-in: 93f42586 user: drh tags: stat4-function
06:46
The valueFromFunction() routine is better able to handle OOM errors. Omit unreachable branches. check-in: 8fb6bd9b user: drh tags: stat4-function
05:08
Improve the text on one of the opcode documentation comments in vdbe.c. check-in: 08958f57 user: drh tags: trunk
2015-03-11
20:59
Allow the default value for columns added using ALTER TABLE ADD COLUMN to be a function in existing schemas loaded from disk. But prevent this version of SQLite from being used to create such a column. check-in: ff868e22 user: dan tags: stat4-function
20:06
Allow the query planner to evaluate deterministic scalar SQL functions used in WHERE constraints if all arguments are SQL literals in order to compare the results with sqlite_stat4 sample data. check-in: b7f1fc26 user: dan tags: stat4-function
14:34
Expand the multi-process test cases to repeat each case 20 times and to repeat tests using different journal modes. check-in: a2715b04 user: drh tags: trunk
2015-03-10
15:34
Fix an incrblob2 test case so that it works on 32-bit systems. check-in: 8d0b11c9 user: drh tags: trunk
13:50
Revise test cases in malloc5.test to accommodate varying allocation sizes returned by some system malloc() implementations. check-in: fbae6baf user: drh tags: trunk
2015-03-09
13:01
Fix the LIKE optimization so that it works even if there are additional range contraints on the column that is subject to the LIKE or GLOB. check-in: 984c3fd5 user: drh tags: trunk
12:11
Always use LIKE optimization range constraints in pairs. Closed-Leaf check-in: 0e02dc94 user: drh tags: like-opt-fix
10:40
Increase the version number to 3.8.9 check-in: e5da5e7d user: drh tags: trunk
2015-03-07
20:32
Fix another problem with the LIKE optimization. check-in: 465bfc72 user: drh tags: like-opt-fix
13:56
Fix the LIKE optimization so that it finds BLOB entries in addition to text entries. Ticket [05f43be8fdda9f]. check-in: 74cb0b03 user: drh tags: trunk
12:58
New test cases for LIKE and GLOB with BLOB left-hand side values. Closed-Leaf check-in: 50fa3c5f user: drh tags: like-opt-fix
03:02
Remove some code that is commented out. check-in: 55ff4291 user: drh tags: like-opt-fix
02:51
Fix problems with reverse order sorting and indexes in the LIKE optimization. check-in: 564b8fe7 user: drh tags: like-opt-fix
00:57
Refactor some jump opcodes in the VDBE. Add JumpZeroIncr and DecrJumpZero. Fix the LIKE optimization to work with DESC sort order. check-in: 26cb5145 user: drh tags: like-opt-fix
2015-03-06
20:49
Test cases added. Comments fixed. Proposed solution for ticket [05f43be8fdda9fbd9]. check-in: 6b993bd5 user: drh tags: like-opt-fix
19:47
Fix the LIKE optimization even when comparing mixed-case BLOBs. check-in: a58aafdb user: drh tags: like-opt-fix
16:45
The LIKE optimization must be applied twice, once for strings and a second time for BLOBs. Ticket [05f43be8fdda9f]. This check-in is a proof-of-concept of how that might be done. check-in: 5757e803 user: drh tags: like-opt-fix
04:37
Clearification of some documentation text. Added requirements marks. check-in: 8c1e85aa user: drh tags: trunk
03:31
Clarification of documentation on sqlite3_backup. check-in: 31d5e9b4 user: drh tags: trunk
2015-03-05
15:34
New test cases and requirements marks for PRAGMA index_info, index_xinfo, and index_list. check-in: e5b13634 user: drh tags: trunk
14:29
Revert "PRAGMA index_info" to output only three columns, for complete compatibility with prior versions. The new "PRAGMA index_xinfo" can be used to get the extra information in 4th, 5th, and 6th columns. check-in: fc543c2c user: drh tags: trunk
01:29
New requirements marks on compound SELECT statements. check-in: e7991bc5 user: drh tags: trunk
2015-03-04
23:14
New requirements marks on INSERT and INDEXED BY and on some sqlite3_config() options. check-in: c298ea0b user: drh tags: trunk
20:18
Fix harmless compiler warning. check-in: 580dae46 user: mistachkin tags: trunk
15:35
Refinement to the wording of the documentation on depreciated functions. check-in: 04a59d6f user: drh tags: trunk
15:25
Remove a surplus </dl> mark in the documentation. No changes to code. check-in: 5450e465 user: drh tags: trunk
2015-03-03
20:42
Clean up #ifdef logic dealing with VxWorks in os_unix.c. On VxWorks, automatically use posix advisory locking if it is available or fall back to named semaphore locking if not. check-in: ac8c7ca3 user: drh tags: trunk
19:56
Fix compiler warnings when compiling under VxWorks 7. check-in: 55c21521 user: drh tags: trunk
16:58
Enhance SQLITE_ALLOW_URI_AUTHORITITY to elide //localhost/ and to deal with dodgy URIs that contain too many "/" characters. check-in: 39b566a2 user: drh tags: trunk
14:00
Fix over-length source code lines in the main.c source file. check-in: debba6f1 user: drh tags: trunk
2015-03-02
22:06
Changes so that the amalgamation and the command-line shell build without modifications on VxWorks 7. Still gives a few compiler warnings, and still mostly untested on that platform. check-in: 7d92f1f1 user: drh tags: trunk
17:25
Ensure that automatic indexes are *not* considered when doing the the subqueries of the OR-optimization. check-in: 17890292 user: drh tags: trunk
2015-02-28
14:03
In the command-line shell, the inability to read ~/.sqliterc is no longer a fatal error. A warning is issued, but processing continues. check-in: 6bf62463 user: drh tags: trunk
01:04
More test cases and requirements marks for pragmas. check-in: fc51037c user: drh tags: trunk
2015-02-27
21:53
Remove all references to SQLITE_DEFAULT_TEMP_CACHE_SIZE. Add requirements marks related to cache_size changing. check-in: 766ad650 user: drh tags: trunk
20:28
New requirements marks and a few new test cases to go with them. No changes to code. check-in: 8c2b29d9 user: drh tags: trunk
00:33
Add a couple of requirements marks. check-in: d70b0fd4 user: drh tags: trunk
2015-02-26
21:04
Fix potential memory leaks in the misc 'compress' extension. check-in: 3bc34fd4 user: mistachkin tags: trunk
16:40
Update a requirements mark to reflect a change of wording in the documentation. No changes to code. check-in: 3038d016 user: drh tags: trunk
16:32
Fix a real bug (in test code) that was introduced while trying to eliminate harmless compiler warnings from OpenBSD (see check-in [10321910990195878c]). check-in: a62ba58c user: drh tags: trunk
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