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100 check-ins occurring around 8b651d4d6cde7efb.

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
20:07
Fix fts5_index.c to use doclist-indexes when possible. Only some cases work so far. check-in: 90b82d3e user: dan tags: fts5
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
15:12
Changed my mind: This opcode name changes mere creates unnecessary diff marks between older and newer versions without significantly improving readability. Was: Rename the IsNull opcode to IfNull and rename the NotNull opcode to IfNotNull. Closed-Leaf check-in: 2f724cba user: drh tags: deadend
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
20:49
Start changing things to use doclist indexes as required. code is not activated yet. check-in: b8864da9 user: dan tags: fts5
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
20:13
Add a special case to the integrity-check code to check that the final integer in a doclist index is as expected. check-in: c9893415 user: dan tags: fts5
19:27
Have the fts5 integrity-check verify that doclist indexes match the contents of the leaf pages that they index. check-in: 37a7d303 user: dan tags: fts5
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
11:16
Add "doclist index" records to the database. These are to make navigating within very large doclists faster. They are not yet used by queries. check-in: 89377421 user: dan tags: fts5
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
17:53
Add a comment explaining why fts5 cannot cache "sorter statements". check-in: e6af3b7a user: dan tags: fts5
17:47
Try to reuse sorter statements in fts5. Does not work due to circular references on VTable object. Leaf check-in: bc14e64b user: dan tags: save_sorter_stmt
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
11:57
Add further tests for the extension APIs with "ORDER BY rank" queries. check-in: 37a417d2 user: dan tags: fts5
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
20:26
Fix things so that the fts5 extension API works with "ORDER BY rank" queries. check-in: f1b4e1a9 user: dan tags: fts5
19:41
Add hidden column "rank". Currently this always returns the same value as the bm25() function. check-in: 4cc048c3 user: dan tags: fts5
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
14:57
Merge in the CREATE UNIQUE INDEX fix of ticket [9a6daf340df99ba93c53bcf]. check-in: fa791232 user: drh tags: apple-osx
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
14:29
Merge the fix for the CREATE UNIQUE INDEX problem into the sessions branch. check-in: 43401ee6 user: drh tags: sessions
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
11:49
Merge all recent trunk changes, and especially the R-Tree IN operator fix of ticket [d2889096e7bdeac]. check-in: 654c6c65 user: drh tags: apple-osx
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
12:40
Merge recent trunk changes, and especially the fix for the R-Tree problem described in ticket [d2889096e7bdeac6]. check-in: 8f1beead user: drh tags: sessions
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
20:14
Add the "loadfts" program, for performance testing the loading of data into fts3/fts4/fts5 tables. check-in: 770b9540 user: dan tags: fts5
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
18:38
Add tests and fixes for bm25() function. check-in: 71d32f53 user: dan tags: fts5
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
20:30
Add extension apis xRowCount, xQueryPhrase, xSetAuxdata and xGetAuxdata. And a ranking function that uses all of the above. check-in: c4d50428 user: dan tags: fts5
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
16:43
Merge recent trunk changes into the apple-osx branch. check-in: 3810dc62 user: drh tags: apple-osx
16:23
Merge recent trunk changes into the sessions branch. check-in: a9db017e user: drh tags: sessions
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
19:31
Add a snippet() function to fts5. check-in: bdc58fd2 user: dan tags: fts5
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