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2013-08-29
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
17:35
Version 3.8.0.1 check-in: 352362bc user: drh tags: release, version-3.8.0.1, branch-3.8.0
15:08
Merge from trunk: (1) Recent bug fixes (2) STAT4 support (3) win32-longpath support. check-in: e7ebc8f7 user: drh tags: sessions
14:56
Restore fix [f15591f802], which was accidentally clobbered by the stat4 merge. check-in: d4b6ad33 user: dan tags: trunk
13:47
Update sqlite3.pc.in to use @PACKAGE_VERSION@ instead of @RELEASE@. Cherrypick of [2460dfd8825d25]. check-in: c5857808 user: drh tags: branch-3.8.0
13:27
Increase the version number to 3.8.0.1. check-in: 125b04de user: drh tags: branch-3.8.0
13:23
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. Cherrypick of [b5617e4fdadc4c]. check-in: 43aa7d23 user: drh tags: branch-3.8.0
13:21
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]. Cherrypick of [caab361ebe]. check-in: cb667449 user: drh tags: branch-3.8.0
13:15
Cherrypick of [c1152bdcbb] and fix for [9f2eb3abac]: Have the whereShortCut() planner ignore indexes with more than four columns. check-in: c3f75941 user: drh tags: branch-3.8.0
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
17:54
Merge recent trunk changes. check-in: 6cc54de8 user: dan tags: sessions
17:43
Add the sqlite3session_table_filter API to the sessions extension. check-in: b7e4dd88 user: dan tags: sessions
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
15:07
Merge in minor bug fixes and performance tweaks from trunk leading up to the version 3.8.0 release. check-in: 831492dc user: drh tags: sessions
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
13:02
Merge performance enhancements and compiler warning fixes from trunk. check-in: 3e403328 user: drh tags: sessions
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
12:49
Merge in all the latest updates and enhancements from trunk. check-in: 67587a33 user: drh tags: sessions
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
18:07
Merge in the latest changes from trunk. Closed-Leaf check-in: c78b0d30 user: drh tags: uri-enhancement
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
14:52
Merge in the latest changes from trunk. check-in: 69d5bed0 user: drh tags: sessions
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
20:44
Merge in the latest trunk changes, including partial indexes, the MAX_PATH fix in os_win.c, and the sqlite3_cancel_auto_extension() API. check-in: 7e1acb39 user: drh tags: sessions
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
2013-07-24
14:54
Another attempt at generalizing the URI parsing so that it works with a wider variety of file URIs and yet remains backwards compatible. check-in: de05eb75 user: drh tags: uri-enhancement
2013-07-23
22:28
Get the new URI logic working for Windows. Closed-Leaf check-in: 0165789f user: drh tags: uri-enhancement
20:54
Update the URI filename parser to allow (and ignore) authority names in unix and to pass the authority through to the OS on windows, as this appears to be what web-browsers are doing. check-in: 74c12dee user: drh tags: uri-enhancement
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
2013-07-10
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
18:36
Remove an unused function declaration from the FTS3 source code. check-in: 096ae1d8 user: drh tags: trunk
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
02:15
Only eliminate inner loops of a JOIN if they are the RHS of a LEFT JOIN and if they give no more than a single result. This appears to give correct answers in all cases. check-in: d7a25cc7 user: drh tags: omit-join-table-opt
02:05
Attempt to disable inner loops of a join that do not generate output. This does not work, since the inner loops might run zero times and thus inhibit all output. Needs to be enhanced to work only for LEFT JOINs or when we know that the inner loop will always run at least once. check-in: ca839723 user: drh tags: omit-join-table-opt
00:35
Modify the query planner interface so that it always passes in the result set. This is the first step toward adding an optimization that will omit tables from a join that do not contribute to the result. check-in: 2c2577e6 user: drh tags: omit-join-table-opt
2013-06-20
17:32
Add a NEVER() macro and an explanation comment around an unreachable branch in the STAT3 logic. check-in: 604c3c5d user: drh tags: nextgen-query-plan-exp
14:17
Pull in the posix_fallocate() change from trunk. check-in: d94db3fd user: drh tags: nextgen-query-plan-exp
14:07
Disable posix_fallocate() for all systems, all the time, unless the HAVE_POSIX_FALLOCATE compile-time macro is supplied. check-in: b6744622 user: drh tags: trunk
01:27
The vtshim xCreate and xConnect functions need to store the pAux pointer into the newly created vtable object. Style fixes. check-in: 43913c7b user: mistachkin tags: disposable-vtable
00:20
Integration adjustments for the vtshim module. check-in: bf2e28dd user: mistachkin tags: disposable-vtable
2013-06-19
23:48
Merge in trunk changes to os_unix.c that allow the code to build on unix platforms that lack posix_fallocate(). check-in: bf576406 user: drh tags: nextgen-query-plan-exp
18:01
Add in the cost of doing a table lookup on OR searches. Make test case changes to deal with difference in STAT3 behavior. check-in: d97898e8 user: drh tags: nextgen-query-plan-exp
14:49
Only default HAVE_POSIX_FALLOCATE on for linux, and then only if it is not previously defined. check-in: 2b2ade92 user: drh tags: trunk
14:28
Only enable posix_fallocate by default on linux and mac. check-in: b9b30d4f user: drh tags: trunk
13:59
Additional compiler warning fixes. check-in: 8d2ae8e2 user: drh tags: nextgen-query-plan-exp
13:32
Fix a harmless uninitialized variable warning. check-in: 9d3ef3bd user: drh tags: nextgen-query-plan-exp
12:34
Simplify and add invariants to the WhereLoop merging logic inside of whereLoopInsert(). check-in: 8f27f35f user: drh tags: nextgen-query-plan-exp
03:27
Fix compiler warnings. Fix a harmless off-by-one error in the solver. check-in: 10021941 user: drh tags: nextgen-query-plan-exp
2013-06-18
20:06
Adjustments to testcase() macros for improved testability. check-in: 4fbb0c4d user: drh tags: nextgen-query-plan-exp
01:52
Remove some redundant and unreachable code. check-in: 4c6d58d7 user: drh tags: nextgen-query-plan-exp
2013-06-17
21:37
Add more testcase() macros. Fix a memory leak following OOM in the virtual table analysis logic. check-in: b61402af user: drh tags: nextgen-query-plan-exp
18:20
Simplifications to the NGQP. Add the queryplantest makefile target. Add testcase() macros in the NGQP. check-in: eaf1f1b4 user: drh tags: nextgen-query-plan-exp
14:18
Use automatic indices on subqueries of the FROM clause when appropriate. check-in: e8f12428 user: drh tags: nextgen-query-plan-exp
2013-06-15
15:11
Fix compiler warnings. check-in: 3e8ac469 user: drh tags: nextgen-query-plan-exp
2013-06-14
13:27
Comment tweaks in where.c. No changes to code. check-in: cecc5fdd user: drh tags: nextgen-query-plan-exp
02:51
Add a new ORDER BY optimization that bypasses ORDER BY terms that are constrained by == and IS NULL terms of the WHERE clause. check-in: b920bb70 user: drh tags: nextgen-query-plan-exp
2013-06-13
17:58
An index might be useful for ORDER BY if any indexed column is in the ORDER BY clause, not just the first indexed column. check-in: ade473b5 user: drh tags: nextgen-query-plan-exp
17:28
Make sure that disabling the covering index scan optimization does not prevent a covering index from being used to satisfy an ORDER BY clause. check-in: e8b7ea82 user: drh tags: nextgen-query-plan-exp
15:50
Restore the ability to do a BETWEEN query on the rowid. Also fix a nearby comment. check-in: 459a7b90 user: drh tags: nextgen-query-plan-exp
15:16
Make the MIN() and MAX() macros available in sqliteInt.h. Add TUNING comments to the NGQP and adjust costs slightly. check-in: 3a72af2a user: drh tags: nextgen-query-plan-exp
14:51
Fix an off-by-one error in the WhereCost to integer conversion. check-in: b5ca80d9 user: drh tags: nextgen-query-plan-exp
00:32
Add a prototype for an extension that sits in between the SQLite native code virtual table interface and a CLR IDisposable object. check-in: 10bba8d0 user: drh tags: disposable-vtable
2013-06-12
20:18
Activate the one-pass optimization. Update comments, especially the descriptions of the various objects. check-in: e120c558 user: drh tags: nextgen-query-plan-exp
17:55
Bug fixes in the handling of virtual tables. check-in: 25c0f729 user: drh tags: nextgen-query-plan-exp
17:17
Merge all changes from trunk. check-in: f2e15b19 user: drh tags: nextgen-query-plan-exp
17:08
"make test" now passing. check-in: addd7f46 user: drh tags: nextgen-query-plan-exp
14:52
Add the "queryplanner" test permutation. Continuing refinements to NGQP. check-in: 25e2cde1 user: drh tags: nextgen-query-plan-exp
03:48
Continue refining the NGQP check-in: 40567fdd user: drh tags: nextgen-query-plan-exp
2013-06-11
18:59
Improved processing of DISTINCT. check-in: ba897100 user: drh tags: nextgen-query-plan-exp
14:22
Add the SQLITE_FTS3_MAX_EXPR_DEPTH compile time option. check-in: 24fc9d44 user: dan tags: trunk
13:30
Fix the Parse.nQueryLoop state variable to work with NGQP. check-in: f1cac24f user: drh tags: nextgen-query-plan-exp
02:36
Use a logarithmic rather than linear cost and row-count measures. Do not report row count estimates in EQP output. check-in: b777b109 user: drh tags: nextgen-query-plan-exp
02:32
Fixes to EXPLAIN QUERY PLAN output. Change weights back to something closer to what they are in legacy. More test case fixes. Closed-Leaf check-in: 36373b85 user: drh tags: nextgen-query-plan-logcost
01:50
Handle virtual tables correctly when using logarithmic costs. Fixes to test cases. check-in: e612664a user: drh tags: nextgen-query-plan-logcost
2013-06-10
23:30
Fix test cases for the new EXPLAIN QUERY PLAN format. Add the wherecosttest tool. Other fixes to logarithm cost. check-in: aa580e36 user: drh tags: nextgen-query-plan-logcost
20:46
Fix some minor issues with logarithmic cost in NGQP. check-in: 69cf8772 user: drh tags: nextgen-query-plan-logcost
19:12
First attempt to store costs and row counts as a logarithm. check-in: 9e810967 user: drh tags: nextgen-query-plan-logcost
14:56
Simplification and performance tweak to the high-speed NGQP bypass. check-in: 0f8a38ee user: drh tags: nextgen-query-plan-exp
12:34
Performance improvements for whereScan methods. check-in: aae14350 user: drh tags: nextgen-query-plan-exp
12:17
Add a high-speed bypass for the NGQP for the common case of a simply query with quality constraints that outputs a single row. check-in: 8d1ba309 user: drh tags: nextgen-query-plan-exp
12:15
Minor problems in the high-speed NGQP fixed. Closed-Leaf check-in: 20eeccf1 user: drh tags: nextgen-query-plan-fast
2013-06-09
20:22
Fix the memory leak in CREATE TABLE that occurs if there are two or more COLLATE clauses on the same column. check-in: 7e3820e5 user: drh tags: trunk
20:16
Add test cases to demonstrate the memory leak on the COLLATE clause. Closed-Leaf check-in: 0a60212c user: drh tags: memleak
17:21
High-speed version of NGQP. Still has some minor problems. check-in: db2415fa user: drh tags: nextgen-query-plan-fast
2013-06-08
19:58
Candidate fix for a memory leak that occurs if a CREATE TABLE statement contains two or more COLLATE clauses on the same column definition. check-in: 60fc77bc user: drh tags: memleak
2013-06-07
22:12
Improve manual cleaning step performed by the multi-platform build tool for MSVC. check-in: d5bc1fe1 user: mistachkin tags: trunk
02:04
Must faster computation of estimated logarithm. check-in: dfbca3ac user: drh tags: nextgen-query-plan-exp
00:29
Further prepare-time performance improvements. check-in: 02741d17 user: drh tags: nextgen-query-plan-exp
2013-06-06
23:44
Performance improvements. check-in: 9f8e84ab user: drh tags: nextgen-query-plan-exp
23:02
Improved management of the space to hold WhereLoop.aLTerm[]. check-in: d4141ecb user: drh tags: nextgen-query-plan-exp
19:25
Remove some commented-out code that was mistakenly left in the previous check-in. check-in: b4a5dbad user: drh tags: nextgen-query-plan-exp
19:16
Clean up and reorganize the elements of the various objects in the analysis tree for the NGQP. check-in: bfc76ae1 user: drh tags: nextgen-query-plan-exp
2013-06-05
23:39
Move the definitions of the WhereLevel and WhereInfo objects out of sqliteInt.h and into where.c. This will facilitate future refactoring of the internal query planner data structures. check-in: 1574653b user: drh tags: nextgen-query-plan-exp
17:53
Performance improvement for the OR-clause analysis in the NGQP. check-in: 9b1c4954 user: drh tags: nextgen-query-plan-exp
16:19
Minor performance tuning of the NGQP. check-in: cbef38c2 user: drh tags: nextgen-query-plan-exp
16:17
Up until now the fts4 "unicode61" tokenizer has treated all private use codepoints except the first and last of each of the three ranges as alphanumeric (eligible to be part of tokens). This commit fixes this so that all private use codepoints are considered alphanumeric. In other words, it fixes the handling of codepoints 0xE000, 0xF8FF, 0xF0000, 0xFFFFD, 0x100000 and 0x10FFFD. check-in: 6cfd9af5 user: dan tags: trunk
12:47
Performance tweak to whereLoopInsert(). check-in: 1c4a7880 user: drh tags: nextgen-query-plan-exp
12:18
Add a test case contributed on the mailing list that works in NGQP but fails in legacy. check-in: 96afe508 user: drh tags: nextgen-query-plan-exp
2013-06-04
23:40
Update some variable names and comments in the ORDER BY optimizer. Fix a bug in the ORDER BY optimizer dealing with IS NULL constraints. Updates to test cases. check-in: cf96eb59 user: drh tags: nextgen-query-plan-exp
18:27
Restore the PRAGMA reverse_unordered_selects behavior. check-in: f49cd6c4 user: drh tags: nextgen-query-plan-exp
18:03
Get the index-only optimization working for OR queries. check-in: 774d5ff8 user: drh tags: nextgen-query-plan-exp
15:31
Test case updates. check-in: 0360fec7 user: drh tags: nextgen-query-plan-exp
13:37
Better determination of when an index is UNIQUE. check-in: 63fd025a user: drh tags: nextgen-query-plan-exp
13:07
Increase the estimated full-scan cost for an FTS3 table. check-in: 8d9f29f8 user: drh tags: nextgen-query-plan-exp
12:58
Fix a display issue with EXPLAIN QUERY PLAN. check-in: ff2fa407 user: drh tags: nextgen-query-plan-exp
12:42
Refactor the ORDER BY optimizer in the NGQP so that it is easier to maintain and so that it can support optimizing out GROUP BY and DISTINCT clauses. check-in: e605c468 user: drh tags: nextgen-query-plan-exp
2013-06-03
22:08
Remove more vestiges of sqlite_query_plan from the test cases. check-in: eb27086e user: drh tags: nextgen-query-plan-exp
21:25
Adjust the xBestIndex methods on both the fuzzer and transitive_closure virtual tables so that an unused MATCH operator gets a really large cost. Remove ambiguities from the fuzzer test cases. check-in: e2c1af78 user: drh tags: nextgen-query-plan-exp
20:46
Pull in recent trunk changes. Fix the ORDER BY optimizer so that it is better able to deal with COLLATE clauses. Clean up ambiguities in the descidx1.test script. check-in: 6bc71dfc user: drh tags: nextgen-query-plan-exp
20:39
Fix a typo in a collating function inside the e_reindex.test script. check-in: 4d74fccf user: drh tags: trunk
19:17
Do not use an index fullscan for an UPDATE or DELETE or if disabled by sqlite3_test_control() or sqlite3_config(). check-in: fabb2185 user: drh tags: nextgen-query-plan-exp
19:01
Resolve ambiguities in test cases in collate2.test. check-in: dcbbcb2e user: drh tags: nextgen-query-plan-exp
18:50
Fix a bug in the transitive_closure virtual table that NGQP exposes. Update between.test module to avoid using sqlite_query_plan. check-in: aa66b864 user: drh tags: nextgen-query-plan-exp
18:14
Fix EXPLAIN QUERY PLAN row counts for the rtree virtual table tests. check-in: 15328987 user: drh tags: nextgen-query-plan-exp
17:35
Update the NGQP to make use of STAT3 information if it is available. check-in: ff134e6e user: drh tags: nextgen-query-plan-exp
16:56
Honor the orderByConsumed boolean returned from virtual table query planner. check-in: aaf7f589 user: drh tags: nextgen-query-plan-exp
16:03
Fix to the logic that disables constraints on virtual tables. check-in: 62d38240 user: drh tags: nextgen-query-plan-exp
15:34
Fix an issue that was causing ORDER BY DESC to come out in ascending order. check-in: 02984012 user: drh tags: nextgen-query-plan-exp
15:24
Virtual tables now always report 25 rows instead of 0 rows in the EXPLAIN QUERY PLAN output. Adjust tests accordingly. check-in: 7d91f688 user: drh tags: nextgen-query-plan-exp
15:07
Set the WHERE_UNIQUE flag on loops that can only run once. check-in: 510f4d8e user: drh tags: nextgen-query-plan-exp
14:15
Add test cases to verify that ticket [bc1aea7b725f2761] has been fixed in the NGQP. check-in: 9b97af94 user: drh tags: nextgen-query-plan-exp
12:47
Enhance the shell to provide more flexibility when entering numeric arguments on dot-commands. In particular, allow hexadecimal arguments to .wheretrace and .testctrl commands. Cherrypick from [b9578c371ee5]. check-in: 3bd5ad09 user: drh tags: trunk
12:34
Further improvements to error handling of the run-time loading of SQLite into TCL. check-in: 7cc0c4ee user: drh tags: trunk
2013-05-31
20:43
The NGQP might not find a solution if INDEXED BY constraints on the query are set wrong. If that is the case, print a "no query solution" error and abort before trying to use the non-existant solution. check-in: 42511a7e user: drh tags: nextgen-query-plan-exp
20:28
Do not search using ON clause constraints of LEFT JOINs to the right of the table. check-in: 723f901a user: drh tags: nextgen-query-plan-exp
20:00
Make sure a unique cursor number is allocated for automatic indices. check-in: 433d1aec user: drh tags: nextgen-query-plan-exp
19:14
Do not attempt to generate code in the NGQP if there have been prior errors, since with prior errors some of the expressions might not be fully named resolved. check-in: 665e4291 user: drh tags: nextgen-query-plan-exp
18:20
Fix a problem with code generation on LEFT JOIN of tables without an index. check-in: 0b1bee92 user: drh tags: nextgen-query-plan-exp
18:13
Another virtual table fix in NGQP. check-in: 2f2ce416 user: drh tags: nextgen-query-plan-exp
17:55
Fix problems in the virtual table logic for NGQP. check-in: 23af28e2 user: drh tags: nextgen-query-plan-exp
15:50
Remove the definitions of objects that are no longer used: WhereCost, WherePlan, and WhereBestIdx. check-in: 816f8add user: drh tags: nextgen-query-plan-exp
15:36
Improved handling of errors when doing run-time loading of an SQLite shared-library into TCL. check-in: b3f23d18 user: drh tags: trunk
15:18
Allow tracing of whereLoopInsert() when the 0x8 bit is set on ".wheretrace". Remove the use of sqlite_query_plan from where2.test. Fix a bug in the code generator for OR clause optimizations. check-in: 707f0323 user: drh tags: nextgen-query-plan-exp
14:31
Enhance the shell to provide more flexibility when entering numeric arguments on dot-commands. In particular, allow hex arguments to .wheretrace. check-in: b9578c37 user: drh tags: nextgen-query-plan-exp
13:36
Futher enhancements to the ORDER BY optimizer. check-in: d8efa5f8 user: drh tags: nextgen-query-plan-exp
12:43
Improved detection of unnecessary ORDER BY clauses. check-in: 58805eb3 user: drh tags: nextgen-query-plan-exp
11:57
Fix the constructAutomaticIndex() routine so that it works with NGQP. check-in: 5e1e6139 user: drh tags: nextgen-query-plan-exp
2013-05-30
23:21
Improvements to the ORDER BY suppressor in the NGQP. check-in: 24a2e9dd user: drh tags: nextgen-query-plan-exp
22:27
Incremental check-in with various NGQP fixes. Many tests still fail. check-in: a51d8c92 user: drh tags: nextgen-query-plan-exp
19:29
Futher simplifications to the NGQP. Fix some test cases to use EXPLAIN QUERY PLAN rather than the (now obsolete) sqlite_query_plan global variable. check-in: ae985db4 user: drh tags: nextgen-query-plan-exp
19:28
The expected result in a test case can be of the form "*glob*" or "~*glob*" to match or not match the GLOB pattern. This is useful for matching EXPLAIN QUERY PLAN output that contains regular expression syntax characters like "?", "(", and ")". check-in: a3b4e261 user: drh tags: nextgen-query-plan-exp
17:43
Cut over the NGQP query planner. Remove lots of legacy code. This check-in compiles but does not work. The test suite gets incorrect answers and crashes. check-in: 001539df user: drh tags: nextgen-query-plan-exp
11:48
Merge recent trunk changes into the NGQP branch. check-in: aebe1f26 user: drh tags: nextgen-query-plan-exp
2013-05-29
17:48
Updates to the Codec interface to support codecs on attached databases and to allow rekeying in the middle of a transaction. These changes are only applicable if SQLite is compiled with SQLITE_HAS_CODEC. check-in: d5b084e9 user: drh tags: trunk
14:22
Add tests for running FTS 'merge' and 'optimize' commands in shared cache mode. check-in: 09e5a7ad user: dan tags: trunk
2013-05-28
20:25
Add the percentile() SQL function as a loadable extension in the ext/misc directory. check-in: a64d760d user: drh tags: trunk
17:30
Finish removing the sqlite3.inTrans field. In the previous check-in, it was merely commented out because I failed to select File->Save on my text editor. check-in: 2f97e38a user: drh tags: trunk
17:25
Remove the obsolete and unused sqlite3.inTrans field. check-in: c3381cd4 user: drh tags: trunk
12:11
Many small harmless comment changes. Removal of obsolete comments and fixing misspelled words. No changes to code. check-in: a0d5cc93 user: drh tags: trunk
10:52
Merge autoconf-package branch with trunk. check-in: a72f50ef user: dan tags: trunk
2013-05-27
18:37
Add the "dist" target to main.mk. For building the amalgamation autoconf package. Closed-Leaf check-in: 3fdc8b56 user: dan tags: autoconf-package
17:59
Update the NGQP to record which loops need be run in reverse order to satisfy ORDER BY clauses. check-in: 211f7a53 user: drh tags: nextgen-query-plan-exp
17:19
Add the files used to build the amalgamation-autoconf package. check-in: 048865e8 user: dan tags: autoconf-package
10:11
When writing to an FTS table, take an exclusive shared-cache lock on the %_segdir table before writing. Otherwise, an xCommit() call may report an SQLITE_LOCKED error. check-in: 3cd2da42 user: dan tags: trunk
2013-05-24
14:52
Record in the WhereLoop object the set of virtual table constraints that need not be separately checked. check-in: b49fa745 user: drh tags: nextgen-query-plan-exp
13:55
Merge the latest trunk changes into the NGQP branch. check-in: 7c8f992c user: drh tags: nextgen-query-plan-exp
12:47
Set _XOPEN_SOURCE to 600 so that fchmod() will (hopefully) work on FreeBSD. check-in: 61a10452 user: drh tags: trunk
11:57
Fix harmless compiler warnings in the shell. check-in: 9e2c17c5 user: drh tags: trunk
2013-05-23
20:52
Add OGC GeoPackage files to the magic.txt database. check-in: dab6a328 user: drh tags: trunk
10:15
Have the "make fulltest" command run the "mmap" permutation test. check-in: 82ad373f user: dan tags: trunk
10:13
Avoid unnecessary calls to FCNTL_SIZE_HINT. Return an error to the user if the file-control invoked by "PRAGMA mmap_size" returns a value other than SQLITE_OK or SQLITE_NOTFOUND. check-in: 40cfde8b user: dan tags: trunk
01:40
Cause the mmap_size PRAGMA to immediately change the mmap space if the database connection is already active. In particular, reducing mmap_size will immediately free up process address space. check-in: 76117792 user: drh tags: trunk
2013-05-22
20:49
Use the NGQP plan for EXPLAIN QUERY PLAN output. This change causes 207 errors in veryquick.test, many of which are benign. check-in: f783e8e6 user: drh tags: nextgen-query-plan-exp
17:01
Allow the rowid at the end of an index to be used in a constraint on that index. check-in: 9bf0524d user: drh tags: nextgen-query-plan-exp
02:06
Improvements to ORDER BY handling in the NGQP. Fix an "exit" mistakenly left in a test script during the previous check-in. check-in: 12c709b4 user: drh tags: nextgen-query-plan-exp
2013-05-21
19:23
Enhanced "wheretrace" output in the NGQP solver routine. check-in: 04dfb85a user: drh tags: nextgen-query-plan-exp
15:52
Work toward improving the NGQP's ability to optimize out ORDER BY clauses. check-in: 67367f1e user: drh tags: nextgen-query-plan-exp