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100 descendants and 100 ancestors of 1c086deebd0eb442
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2014-06-06
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| 20:20 | Make sure the estLog() routine in the query planner handles negative values correctly (always returning 1). Prior to this change, estLog(-1) would return a large number which could throw off the cost computations in the query planner in obscure circumstances. (check-in: 75437bee49 user: drh tags: trunk) | |
| 17:09 | Fix an obsolete comment on the whereRangeScanEst() routine. No changes to code. (check-in: b16bf8518b user: drh tags: trunk) | |
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2014-06-05
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| 13:22 | Bring the threads branch up-to-date with the 3.8.5 release. (check-in: e4b01676d7 user: drh tags: threads) | |
| 12:53 | Merge in the 3.8.5 release changes and the FTS integrity-check fix. (check-in: 2dbdfa5170 user: drh tags: apple-osx) | |
| 11:15 | Fix a problem that was causing the FTS4 integrity-check command to fail if the table had one or more "notindexed" columns. (check-in: 7123bb2605 user: dan tags: trunk) | |
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2014-06-04
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| 14:06 | Version 3.8.5 (check-in: b1ed4f2a34 user: drh tags: trunk, release, version-3.8.5) | |
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2014-06-03
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| 20:09 | Merge the 3.8.5 release candidate changes into the sessions branch. (check-in: 09e75d82d0 user: drh tags: sessions) | |
| 14:42 | Avoid closing a pseudo-table associated with sorting in a co-routine since that pseudo-table might be used again in an outer loop. (check-in: 6d81805298 user: drh tags: trunk) | |
| 11:32 | Add a test to double-check that [1cbe7a0883] did not affect anything. (check-in: c6b512a724 user: dan tags: trunk) | |
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2014-06-02
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| 21:00 | Remove the WHERE_LIKELIHOOD bit, as it does not seem to effect any result. (check-in: 1cbe7a0883 user: drh tags: trunk) | |
| 18:24 | Fix a typo in a requirements mark comment in a test script. No changes to code. (check-in: 75ff459b06 user: drh tags: trunk) | |
| 11:26 | Fix the query planner so that it once again knows that queries without a FROM clause will never return more than one row and hence do not require sorting. (check-in: 9f18b303cd user: drh tags: trunk) | |
| 09:39 | Add the "valgrind-nolookaside" permutation to permutations.test. (check-in: 8e8472d9b6 user: dan tags: trunk) | |
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2014-05-31
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| 15:43 | Fix a harmless "scan-build" compiler warning in the command-line shell. (check-in: 39fafe0a19 user: drh tags: trunk) | |
| 15:39 | Fix a compile of harmless static analyzer warnings. (check-in: 7e287f2055 user: drh tags: trunk) | |
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2014-05-30
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| 21:01 | Revise locking retry semantics in Win32 VFS to abort early if the file handle is reported as invalid. (check-in: a4df4a5b34 user: mistachkin tags: trunk) | |
| 16:54 | Add extra checking of the database extended error code. (Closed-Leaf check-in: f2906c4451 user: mistachkin tags: winLockHandle) | |
| 16:42 | Add tests for the invalid file handle detection logic in the winLock() function. (check-in: ed5a9eb4f3 user: mistachkin tags: winLockHandle) | |
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2014-05-29
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| 20:39 | Fix a harmless compiler warning in the command-line shell code. (check-in: a80527f60b user: drh tags: trunk) | |
| 20:36 | Merge trunk changes into the apple-osx branch. (check-in: b9fad4490c user: drh tags: apple-osx) | |
| 20:29 | Merge trunk changes into the sessions branch. (check-in: 9f18e78f03 user: drh tags: sessions) | |
| 20:24 | Merge changes from the trunk into the threads branch. (check-in: 416cb09126 user: drh tags: threads) | |
| 20:17 | Fix to the EXPLAIN indentation logic in the command-line shell. (check-in: 8f916ed1e1 user: drh tags: trunk) | |
| 12:36 | Improvements to error messages for errors in the dot-commands of the command-line shell. Add the ".once" command. The output of ".help" now goes to the designated output channel. (check-in: 48dce821a0 user: drh tags: trunk) | |
| 03:17 | Only quote the arguments to the ".shell" and ".system" commands if they contain spaces. (check-in: e58f4bd39d user: drh tags: trunk) | |
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2014-05-28
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| 20:22 | Add the ".shell" and the ".system" commands (aliases for the same thing) to the command-line shell. (check-in: d018a34a05 user: drh tags: trunk) | |
| 10:00 | Add an extra test to verify that the FTS notindexed option is working. (check-in: c461c0fe05 user: dan tags: trunk) | |
| 09:56 | Moved to "mistake" because this commit contains a typo causing a test to fail. Was: Add an extra test to further verify that the FTS notindexed option is working properly. (Leaf check-in: 7d445e593a user: dan tags: mistake) | |
| 03:27 | Revise locking retry semantics in Win32 VFS to abort early if the file handle is reported as invalid. (check-in: d43e2e59b5 user: mistachkin tags: winLockHandle) | |
| 03:23 | Revise how OSTRACE reports logically boolean results in the Win32 VFS. (check-in: c405f971cf user: mistachkin tags: trunk) | |
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2014-05-27
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| 20:19 | Remove an incorrect assert() in the sorter. (check-in: b8b66103de user: drh tags: trunk) | |
| 19:18 | Fix harmless compiler warnings. (check-in: 20b75460c0 user: drh tags: trunk) | |
| 18:18 | Change the name of the Index.autoIndex field to Index.idxType and provide symbolic names for the various values of that field rather than using magic numbers. (check-in: d16e575dac user: drh tags: trunk) | |
| 17:57 | Avoid unnecessary cursor opens and seeks when running the OR-optimization on a WITHOUT ROWID table. (check-in: 9c785c5832 user: drh tags: trunk) | |
| 16:41 | Improved comments on the OR-optimization logic in the query planner. (check-in: 77fef5a398 user: drh tags: trunk) | |
| 15:21 | Remove unused code (previously #ifdef-ed out) from btree.c. (check-in: 8bc9737112 user: drh tags: trunk) | |
| 11:54 | Fix a harmless compiler warning in the FTS4 logic. (check-in: 64a869ad23 user: drh tags: trunk) | |
| 11:42 | Add a test to whereI.test that uses a multi-column PK. (check-in: aa183e6092 user: dan tags: trunk) | |
| 10:57 | Fix for (unsupported) SQLITE_USE_FCNTL_TRACE code. (check-in: 994b2b7a59 user: drh tags: trunk) | |
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2014-05-26
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| 22:05 | Add the OR-optimization to WITHOUT ROWID tables. (check-in: 06a23b8b32 user: drh tags: trunk) | |
| 22:01 | Minor enhancements to comments and clarification of the code. (Closed-Leaf check-in: cbec30d0c4 user: drh tags: without-rowid-or-opt) | |
| 20:25 | Add a missing VdbeCoverage() macro on an OP_Found opcode added in the previous check-in. (check-in: b4980a07e2 user: drh tags: without-rowid-or-opt) | |
| 20:15 | Merge recent trunk changes into the threads branch. (check-in: 8215202759 user: drh tags: threads) | |
| 20:08 | Merge recent trunk changes into the apple-osx branch. (check-in: 54b5fa77e9 user: drh tags: apple-osx) | |
| 20:06 | Enable the OR optimization for WITHOUT ROWID tables. Use a temp table instead of the RowSet object to track the rows that have already been included in the result set. (check-in: 2c7e277bbe user: dan tags: without-rowid-or-opt) | |
| 20:00 | Merge recent trunk changes into the sessions branch. (check-in: a769c7e03e user: drh tags: sessions) | |
| 18:27 | Fix a problem in the shell when importing CSV files. If the leftmost field of the first row in the CSV file was both zero bytes in size and unquoted, no data was imported. (check-in: 856d44a206 user: dan tags: trunk) | |
| 16:40 | Fix a problem in FTS4 where columns with names that are prefixes of any notindexed column were also being (incorrectly) marked as not indexed. For example in "CREATE ... t1(abc, bc, abcd, notindexed=abcd)", both abc and abcd were being treated as notindexed. (check-in: d90c4964fc user: dan tags: trunk) | |
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2014-05-24
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| 17:15 | Remove references in comments to VDBE opcodes that no longer exist. This is a documentation change only; no changes to code. (check-in: ebfb51fe40 user: drh tags: trunk) | |
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2014-05-23
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| 17:17 | Changes to the output of EXPLAIN QUERY PLAN to make it clearer when a query uses the PRIMARY KEY index of a WITHOUT ROWID table. (check-in: 9268df305b user: dan tags: trunk) | |
| 12:03 | In the command-line shell, if three or more interrupt signals (control-c) are received in a row without a response from sqlite3_interrupt() then call exit(1) immediately. This allows control-C to interrupt the shell even if it is stuck in a computation or loop that does not involve the VDBE. (check-in: b5cde57166 user: drh tags: trunk) | |
| 11:48 | Make sure sufficient VDBE registers are allocated for an INSERT...SELECT when there is an idlist on the insert table that includes an explicit rowid. Ticket [e9654505cfda93610585fde5a9bbf2e730c8a8d5] (check-in: 9a2dd18776 user: drh tags: trunk) | |
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2014-05-22
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| 09:58 | Add a test for the EQP output of a skip-scan query that uses the PK index of a WITHOUT ROWID table. (check-in: 10238fad94 user: dan tags: trunk) | |
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2014-05-21
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| 08:48 | Do not burn memory remembering CHECK constraints in a read-only database. (check-in: 34ddf02d3d user: drh tags: trunk) | |
| 08:21 | Fix the sqlite3_db_readonly() API so that it reports true if the database is readonly because the file format write version (byte 18 of the header) is too large. (check-in: 8d8af114da user: drh tags: trunk) | |
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2014-05-20
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| 19:11 | Improvements to the testability of the threads.c module. (check-in: 386e088868 user: drh tags: threads) | |
| 11:03 | In vdbesort.c, change the names of PmaReader variables "pIter" to "pReadr". Other related comment changes. The generated object code should be the same. (check-in: 99efb235a0 user: drh tags: threads) | |
| 00:27 | Merge all recent trunk changes into the apple-osx branch. (check-in: 23722be49a user: drh tags: apple-osx) | |
| 00:20 | Merge recent trunk changes into the sessions branch. (check-in: 2d33afe0c4 user: drh tags: sessions) | |
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2014-05-19
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| 23:17 | Merge recent changes from trunk. (check-in: 6eefdad946 user: drh tags: threads) | |
| 19:26 | Fix harmless compiler warnings in MSVC. (Leaf check-in: aa7e2041a3 user: drh tags: safer-malloc) | |
| 15:16 | Changes to help ensure that a multiplication does not overflow when computing the number of bytes needed for a memory allocation, and cause a malfunction. No problems existing problems were discovered. However, these changes should help to ensure that no problems arise in the future. (check-in: 17349a49d2 user: drh tags: safer-malloc) | |
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2014-05-17
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| 16:56 | Internally, use a 64-bit integers for segment level numbers. (check-in: 8180e320ee user: dan tags: trunk) | |
| 15:10 | Fix a broken test case in fts4growth2.test. (check-in: 9fde5b960a user: dan tags: trunk) | |
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2014-05-16
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| 23:38 | Fix harmless compiler warnings. (Closed-Leaf check-in: 7e60347e21 user: mistachkin tags: ftsWarnings) | |
| 23:15 | Work around compilation issue with MSVC. (check-in: 9623a29c11 user: mistachkin tags: trunk) | |
| 20:24 | Rearrange some conditionals and add #if statements to make the code more testable. (check-in: 17afd77057 user: drh tags: threads) | |
| 17:31 | Add a pair of sqlite3FaultSim(100) calls to vdbesort.c to facilitate testing of obscure and hard to reach error conditions. (check-in: cceac14fd8 user: drh tags: threads) | |
| 16:16 | Fixes to prevent an FTS index from growing indefinitely as the corresponding table is updated. Change the FTS 'automerge' option to allow the user to specify the number of segments that should be merged simultaneously by auto-merges. (check-in: a75f180002 user: dan tags: trunk) | |
| 15:48 | Add extra test to backcompat.test to ensure that old and new versions of FTS may work together on the same incremental merge operation. (Closed-Leaf check-in: 3997d47bb9 user: dan tags: fts4-experimental) | |
| 14:27 | Merge all recent changes from trunk, and especially the new sqlite3FaultSim() interface. (check-in: 43fcbd9116 user: drh tags: threads) | |
| 14:17 | Repurpose the SQLITE_TESTCTRL_FAULT_INSTALL test-control to register a callback to be invoked by sqlite3FaultSim(). That test-control has been unused since 2008-06-20 and was never used in any official release. (check-in: 0d43a7ad9a user: drh tags: trunk) | |
| 12:18 | Use #ifdef logic to avoid an always-true branch when SQLITE_MAX_WORKER_THREADS=0 (check-in: 88cfe6d7de user: drh tags: threads) | |
| 10:30 | Fix a bug causing an incorrect segment size value to be stored if both an old and new FTS version performed work on the same incremental merge operation. (check-in: a9a2aeab29 user: dan tags: fts4-experimental) | |
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2014-05-15
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| 19:05 | Merge latest trunk changes with this branch. (check-in: 5809986ffc user: dan tags: fts4-experimental) | |
| 18:36 | Fix a problem with the handling of delete markers by automerge on large databases. (check-in: 2b09bd17eb user: dan tags: fts4-experimental) | |
| 16:56 | Use #ifdef to omit code that is not used when SQLITE_MAX_WORKER_THREADS is zero. (check-in: 2e8d287d4f user: drh tags: threads) | |
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2014-05-14
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| 19:49 | Do not search for promotable segments following an FTS 'optimize' operation or creation of a new segment on the oldest existing level. (check-in: 34f6b4b8e4 user: dan tags: fts4-experimental) | |
| 18:45 | Fix a problem to do with loading the value of the FTS automerge setting from the database. (check-in: 7268119f74 user: dan tags: fts4-experimental) | |
| 15:58 | Fix various problems to do with segment promotion. Add test file fts4growth2.test, containing tests to check that the FTS index does not grow indefinitely as the table is updated. Allow the user to configure the number of segments merged simultaneously by the automerge option. (check-in: 21491a9bc6 user: dan tags: fts4-experimental) | |
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2014-05-13
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| 20:11 | Fix a problem preventing delete markers from ever being removed from the FTS index. (check-in: 7f47ae5c5d user: dan tags: fts4-experimental) | |
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2014-05-12
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| 22:36 | Improve a comment in the MSVC makefile. No changes to code. (check-in: 0901dcceda user: mistachkin tags: trunk) | |
| 21:12 | Add VSIX packaging support for Windows Phone 8.1 using Visual Studio 2013 Update 2. (check-in: 013738f3d5 user: mistachkin tags: trunk) | |
| 20:04 | Experimental code to prevent FTS indexes from growing indefinitely as the table is updated. (check-in: b3b505a4dd user: dan tags: fts4-experimental) | |
| 15:37 | In mutex_w32.c, make inclusion of the Windows header file dependent on SQLITE_OS_WIN, not SQLITE_MUTEX_W32. (check-in: 93ffbcc0b1 user: mistachkin tags: trunk) | |
| 15:30 | In the sorter, only use large memory allocations if scratch memory has not been configured. Add #ifdefs to disable unused code when SQLITE_MAX_WORKER_THREADS is zero. Other sorter changes in support of testability. (check-in: d7e2b0d9cb user: drh tags: threads) | |
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2014-05-10
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| 17:33 | Merge updates from trunk. Emit the AppliesTo and DependsOn SDK manifest attributes when building the VSIX for Windows Phone 8.1. (Closed-Leaf check-in: f6237a5f19 user: mistachkin tags: vsixWinPhone81) | |
| 17:28 | When using Visual Studio 2013, add the appropriate MaxPlatformVersion attribute to the VSIX SDK manifest. (check-in: 0a4f59676b user: mistachkin tags: trunk) | |
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2014-05-09
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| 23:31 | Further MSVC makefile changes to support Windows Phone 8.1. (check-in: a9c81815e1 user: mistachkin tags: vsixWinPhone81) | |
| 20:54 | Merge updates from trunk. (check-in: f4fea7bb8a user: mistachkin tags: vsixWinPhone81) | |
| 20:51 | When cross-compiling with the MSVC makefile, make sure the correct library path is used. Also, keep track of the required compilation options separately. (check-in: c3dce2e739 user: mistachkin tags: trunk) | |
| 17:17 | Merge recent trunk changes into the orderby-planning branch. (Leaf check-in: 8d8609d6c6 user: drh tags: orderby-planning) | |
| 15:00 | Merge the latest trunk changes into the threads branch. (check-in: 9ac8f1e711 user: dan tags: threads) | |
| 14:56 | Fix a misplaced #endif and a C99-ism in the unix VFS. (check-in: c8d384d146 user: drh tags: apple-osx) | |
| 13:27 | Fix compiler warnings. When forcing the delete of a WAL file, do not fail if the WAL files does not exist. All "veryquick.tcl" tests are now passing on Linux under the standard compile-time options. (check-in: eafd8aa186 user: drh tags: apple-osx) | |
| 12:18 | Fix an incorrect check for API misuse. (check-in: 856400dc20 user: drh tags: apple-osx) | |
| 11:45 | Bring the PRAGMA logic into closer alignment with trunk, and in the process fix a couple of crashes. (check-in: d66fe706da user: drh tags: apple-osx) | |
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2014-05-08
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| 23:01 | Initial attempt to merge in all trunk changes over the previous 1.5 years. This check-in compiles but there are compiler warnings and "make test" segfaults after only running a few test modules. (check-in: 9411d7dc6f user: drh tags: apple-osx) | |
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2014-05-07
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| 21:16 | Include sqlite3rtree.h in the tsrc/ pile of source files during target_source in the main.mk makefile. (check-in: 116bed5af6 user: drh tags: trunk) | |
| 20:33 | Remove a superfluous variable initialization. (check-in: 68766f8374 user: drh tags: trunk) | |
| 20:24 | A better fix for the group_concat() problem. (check-in: 1c086deebd user: drh tags: trunk) | |
| 19:59 | Fix the way parenthesis in MATCH expressions are handled by FTS if the tokenizer considers them to be token characters. (check-in: e21bf7a2ad user: dan tags: trunk) | |
| 18:23 | Make sure the group_concat() function returns an empty string, not a NULL, if it has at least one input row. Fix for ticket [55746f9e65f8587]. (check-in: d01cedaa73 user: drh tags: trunk) | |
| 18:21 | Ensure that the sqlite3StrAccumAppend() routine is never called with a NULL second argument. Doing so is harmless when N==0, but it causes an assert() to fail that was placed to quiet static analyzers. (Closed-Leaf check-in: f03fbf3700 user: drh tags: tkt-55746f9e) | |
| 17:19 | Make sure the group_concat() function returns an empty string, not a NULL, if it has at least one input row. Fix for ticket [55746f9e65f8587]. (check-in: 0deac87375 user: drh tags: tkt-55746f9e) | |
| 15:46 | Add the SQLITE_IOCAP_IMMUTABLE bit as a possible return value from the xDeviceCharacteristics method in the VFS. Add the "nolock" and "immutable" query parameters to URI filenames. (check-in: 1a0d7d3d9d user: drh tags: trunk) | |
| 15:32 | Fix nolock and immutable so that they work even if READONLY is requested. (Closed-Leaf check-in: e193aced29 user: drh tags: win32-none) | |
| 15:09 | Add test cases and documentation for the nolock and immutable query parameters. (check-in: 19d56cbaca user: drh tags: win32-none) | |
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2014-05-06
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| 21:37 | Update the template VSIX package file as well. (check-in: 99d96765cc user: mistachkin tags: trunk) | |
| 21:26 | Enhance the VSIX package creation tool to better support Visual Studio 2013. (check-in: c1fb04f61e user: mistachkin tags: trunk) | |
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2014-05-05
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| 22:43 | When building for Windows 8.0 using Visual Studio 2013, make sure the cross-compilation native library path is set correctly. (check-in: c1ab9092e2 user: mistachkin tags: trunk) | |
| 21:08 | More modularization work on the MSVC batch build tool. (check-in: 9a06773acc user: mistachkin tags: trunk) | |
| 20:32 | Create new header file "os_setup.h" used to detect the operating system at compile-time, and "os_win.h" that contains windows-specific header in formation. (check-in: bd92e0f80c user: drh tags: trunk) | |
| 20:24 | Work on cleaning up the MSVC batch build tool integration with Visual Studio 2013. (check-in: b5a72dfd59 user: mistachkin tags: trunk) | |
| 20:21 | Attempt to fix the build on beagleboard. (Closed-Leaf check-in: 3ac75725a6 user: drh tags: winHdr) | |
| 18:24 | Centralize and reform use of the Win32 related include files. (check-in: 857f2baf9b user: mistachkin tags: winHdr) | |
| 17:45 | Merge updates from trunk. (check-in: a3cfd81339 user: mistachkin tags: winHdr) | |
| 17:43 | Fix several header file comments. No changes to code. (check-in: dd6eb5d1eb user: mistachkin tags: winHdr) | |
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2014-05-02
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| 22:39 | Enhance the Win32 VFS I/O retry logic. (check-in: 4760504396 user: mistachkin tags: trunk) | |
| 21:42 | Merge updates from trunk. (Closed-Leaf check-in: 598a3875ce user: mistachkin tags: winIoRetry) | |
| 21:38 | Merge updates from trunk. (check-in: c4d1d8a0db user: mistachkin tags: winHdr) | |
| 14:54 | Fix a broken test case in fuzz.test. (check-in: faa469355e user: dan tags: trunk) | |
| 00:09 | Add a comment explaining why WhereLoop cost adjustments are omitted for skip-scan loops. (check-in: 3bc43594aa user: drh tags: trunk) | |
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2014-05-01
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| 20:26 | Fix an obscure problem to do with temp register allocation that could occur if more than one simple SELECT within a compound SELECT uses a partial sort. (check-in: 427409ae10 user: dan tags: trunk) | |
| 20:24 | Add #ifdefs for test coverage. Add a testcase(). (check-in: be2702ce35 user: drh tags: trunk) | |
| 10:19 | Update a test case in wal2.test that explicitly corrupts a checksum in the wal file to account for the fact that the first byte of said checksum may initially be 0xFF. (check-in: 2b935bdea1 user: dan tags: trunk) | |
| 01:49 | Take out the special handling of nolock=true in os_win.c and add it to pager.c, so that it works for all VFSes. Add the pPager->noLock boolean for clarity. (check-in: 725c1c14be user: drh tags: win32-none) | |
| 01:20 | Avoid unnecessary xUnlock operations on temp file. (check-in: 1829c38c32 user: drh tags: win32-none) | |
| 01:13 | Add the immutable=TRUE query parameter and SQLITE_IOCAP_IMMUTABLE, either of which prevents locking of the database and omits tests for existance of journal files. (check-in: 71f152c85d user: drh tags: win32-none) | |
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2014-04-30
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| 20:32 | Merge in all recent changes and enhancements from trunk. (check-in: 84243f8444 user: drh tags: win32-none) | |
| 18:11 | Fix a problem in calculating the costs of "OR" scans. (check-in: 9bbca48b42 user: dan tags: trunk) | |
| 15:22 | Modify the way the costs of various query plans are estimated. If the user supplies a likelihood() value (or equivalent) on an indexed WHERE constraint, use it to estimate the number of index rows visited. (check-in: 90e3667647 user: dan tags: trunk) | |
| 15:00 | Add text to the header comment of whereLoopAddBtree() describing how the costs of various b-tree loops are estimated. (Closed-Leaf check-in: 05e6e16cb2 user: dan tags: experimental-costs) | |
| 14:53 | Update a couple of test cases to account for the fact that this branch prefers an index scan and partial sort over a full-table scan and full external sort. (check-in: 9b975bf33c user: dan tags: experimental-costs) | |
| 14:47 | Fix a couple of out-of-date comments in where.c. (check-in: eefeda32d5 user: dan tags: experimental-costs) | |
| 14:22 | Improved rendering of LogEst values corresponding to real values near 0.0 in the tool/logest.c utility program. (check-in: 32910c8c59 user: drh tags: experimental-costs) | |
| 13:19 | Fix long-standing typos in comments. (check-in: b9f91317c3 user: drh tags: experimental-costs) | |
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2014-04-29
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| 19:01 | Test that the default values used when sqlite_stat1 data is not available are calculated correctly. Fixes for the same. (check-in: e2d42f909d user: dan tags: experimental-costs) | |
| 16:46 | Merge trunk changes into this branch. (check-in: d74299f037 user: dan tags: experimental-costs) | |
| 16:10 | Ignore likelihood() values on indexed IPK lookups. (check-in: 5bb7757a7b user: dan tags: experimental-costs) | |
| 12:01 | Fix a test case so that it updates sqlite_stat1 consistently. (check-in: 2dc5a0b555 user: dan tags: experimental-costs) | |
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2014-04-28
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| 20:11 | Do not reduce the number of rows scanned at all for "IS NOT NULL" constraints. Fix a bug in calculating the number of rows visited by scans of partial indicies. (check-in: a8ae93f0cf user: dan tags: experimental-costs) | |
| 19:34 | The trunk assumes that an open range constraint on an indexed term (col>?) term matches 1/4 of the indexed rows, and that a closed constraint (col BETWEEN ? AND ?) matches 1/64. Change this branch to do the same. (check-in: 4047ac75e2 user: dan tags: experimental-costs) | |
| 17:56 | Add the sqlite3_rtree_query_callback() API to the RTree virtual table. (Cherrypick from the sessions branch.) (check-in: af2cbe64ad user: drh tags: trunk) | |
| 17:51 | Add the sqlite3_rtree_query_callback() API to the RTree virtual table. (check-in: 3dca280935 user: drh tags: sessions) | |
| 15:11 | Update unordered.test to take into account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. (check-in: 20f468dfbc user: dan tags: experimental-costs) | |
| 12:08 | Add an extra column to a table in analyze9.test to give the planner a little more reason to select an index. (check-in: 1b95544f84 user: dan tags: experimental-costs) | |
| 10:00 | Update test script analyze3.test to account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. (check-in: 35f46a55d8 user: dan tags: experimental-costs) | |
| 09:35 | Modify internal function whereLoopAdjustCost() so that it does not prefer a skip-scan over a regular index scan even if the regular scan uses a subset of the WHERE terms used by the skip-scan. (check-in: 88a5758dcc user: dan tags: experimental-costs) | |
| 08:49 | Fix an error in estimating of the number of rows visited by a range scan. (check-in: d491de62fc user: dan tags: experimental-costs) | |
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2014-04-26
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| 20:21 | Fix an sqlite3_stmt_status() problem caused by recent changs on this branch. (check-in: dee2040924 user: dan tags: experimental-costs) | |
| 19:23 | Update requirements marks to fix typos in the requirements text. No changes to code. (check-in: f5a2636581 user: drh tags: trunk) | |
| 17:52 | Allow the xfer optimization to proceed if the DEFAULT on the very first column of the two tables is different. This is a refinement of the fix for ticket [f67b41381a]. (check-in: 349f483499 user: drh tags: trunk) | |
| 14:07 | Avoid transfering records between tables unless the default values for all columns are the same. Fix for [f67b41381a]. (check-in: f8c4c495e6 user: dan tags: trunk) | |
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2014-04-25
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| 20:22 | If the user provides likelihood() data for a WHERE clause term used as part of an index key, have the planner use it when calculating the expected number of rows visited by the loop. (check-in: c51efaa5d2 user: dan tags: experimental-costs) | |
| 17:37 | Add test cases to ensure correct operation of joins with a virtual table that include DISTINCT and ORDER BY clauses. Verification for ticket [388d01d4bb8f9]. (check-in: 5ada136f43 user: drh tags: trunk) | |
| 15:01 | Store values loaded from the stat1 table as logarithmic values in memory. (check-in: 1bd74c49dd user: dan tags: experimental-costs) | |
| 14:42 | Make sure ORDER BY clauses on joins that involve virtual tables and that have a DISTINCT clause work correctly. This is a candidate fix for ticket [388d01d4bb8f9]. Test cases for that ticket will be checked in separately. (check-in: 1711381226 user: drh tags: trunk) | |
| 12:35 | When VDBE_PROFILE is enabled, ignore negative opcode times, which sometimes occur, perhaps due to context swaps. (check-in: 4e88042f9d user: drh tags: trunk) | |
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2014-04-24
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| 20:04 | Changes to the way the planner calculates the costs of various table and index scans. Some test cases still failing. (check-in: c5a6ec0a88 user: dan tags: experimental-costs) | |
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2014-04-22
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| 19:42 | Change from using the win32-none VFS to just a query parameter. (check-in: ffceacf619 user: drh tags: win32-none) | |
| 19:34 | Add some OSTRACE calls for consistency. (check-in: be292d5597 user: mistachkin tags: win32-none) | |
| 19:30 | Add the win32-none VFS which omits rollback-journal locking. (check-in: 03e3c5a8b1 user: drh tags: win32-none) | |
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2014-04-21
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| 13:36 | Comment tweaks on the test case for the [b75a9ca6b0] bug fix. (check-in: 65d2544af9 user: drh tags: trunk) | |
| 13:21 | Avoid discarding an ORDER BY clause in the case where an identical GROUP BY clauses uses an index to group, but not sort, the rows. Fix for [b75a9ca6b0]. (check-in: de9a490f59 user: dan tags: trunk) | |
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2014-04-18
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| 22:20 | Clean up the proper-subset cost adjustment logic to make it more compact and easier to read and so that full branch test coverage is more easily obtained. (check-in: 9a5d38c79d user: drh tags: trunk) | |
| 00:49 | Add the SQLITE_RUNTIME_BYTEORDER compile-time option to force SQLite to check the processor byte-order at run-time. Add additional compile-time byte order checks for ARM, PPC, and SPARC. (check-in: 2c5363873a user: drh tags: trunk) | |
| 00:06 | Add the SQLITE_TESTCTRL_BYTEORDER test control to interrogate SQLite's notion of the processor byte order and whether the byte order is known at compile-time or determined at run-time. (check-in: 9c6961967a user: drh tags: trunk) | |
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2014-04-14
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| 19:48 | Make sure the undocumented sqlite_rename_parent() function does not crash even if it is invoked with NULL arguments. Ticket [264b970c4379fd4b94] (check-in: c6fa8d0d82 user: drh tags: trunk) | |
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2014-04-13
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| 19:28 | Remove the unused second argument from sqlite3ExprCachePop(). Add an ALWAYS() on an always-true conditional in sqlite3VdbeResolveLabel(). (check-in: ab23abf392 user: drh tags: trunk) | |
| 19:15 | Make sure column cache elements are cleared correctly when jumping over code for key generation in a partial index. Fix for ticket [2ea3e9fe6379fc3f6]. (check-in: 3122b83640 user: drh tags: trunk) | |
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2014-04-10
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| 02:24 | Modify the OR-clause handling so that it can safely deal with OR-clause with 17 or more terms. Fix for ticket [10fb063b1179be53ea0b53bb]. (check-in: a67b5312f6 user: drh tags: trunk) | |
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2014-04-04
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| 18:49 | Performance improvements when reading large blobs, especially if SQLITE_DIRECT_OVERFLOW_READ is defined. (check-in: 2312eb6a9e user: drh tags: trunk) | |
| 18:20 | Merge changes to the query planner that strive to ensure that any index usage that is a proper subset of some other index usage always has a slightly higher cost. (check-in: 683dd379a2 user: drh tags: trunk) | |
| 14:12 | Ensure the "PRAGMA journal_mode=WAL" works coming from any other journal_mode with ATTACH-ed databases. (check-in: e54330b431 user: drh tags: trunk) | |
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2014-04-03
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| 16:29 | Use OP_Copy instead of OP_SCopy when moving results out of a subquery, to prevent the subquery results from changing out from under the outer query. Fix for ticket [98825a79ce1456]. Problem introduced by check-in [1e64dd782a126f48d78]. (check-in: d5513dfa23 user: drh tags: trunk) | |
| 16:16 | Use OP_Copy instead of OP_SCopy when moving results out of a subquery, to prevent the subquery results from changing out from under the outer query. Fix for ticket [98825a79ce1456]. Problem introduced by check-in [1e64dd782a126f48d78]. (check-in: ec6a06246e user: drh tags: branch-3.8.4) | |
| 14:31 | Fix a typo in the "Synopsis:" comment for the OP_VFilter opcode. (check-in: 48ecdd4aff user: drh tags: trunk) | |
| 00:32 | In the command-line shell, run set writable_schema before running the ".clone" command. (check-in: 9d2ae6342c user: drh tags: trunk) | |
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2014-04-01
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| 01:24 | Remove an unnecessary conditional, replacing it with an assert(). Improvements to comments. (Closed-Leaf check-in: 834bf1c367 user: drh tags: overflow-pgno-cache) | |
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2014-03-31
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| 23:57 | Fix a compiler warning when SQLITE_DIRECT_OVERFLOW_READ is defined. Minor performance enhancement and size reduction. (check-in: 96385dc460 user: drh tags: overflow-pgno-cache) | |
| 22:03 | Merge in the latest changes and fixes from trunk. (check-in: f6211540c9 user: drh tags: overflow-pgno-cache) | |
| 20:05 | Remove an unnecessary conditional. (Closed-Leaf check-in: 7473c4dfc1 user: drh tags: query-plan-experiments) | |
| 19:49 | Also make sure an index that is a proper subset of some other index has a higher cost than that other index. Add test cases. (check-in: b7830d232b user: drh tags: query-plan-experiments) | |
| 18:24 | Make sure that an index that covers a proper superset of the WHERE clause terms of some other index has a lower cost than the other index. (check-in: ea8b091004 user: drh tags: query-plan-experiments) | |
| 13:42 | Avoid a (harmless) buffer overread that is possible on an OOM when MEMSYS5 is engaged. (check-in: b3296267fb user: drh tags: trunk) | |
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2014-03-29
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| 21:16 | Experiments in picking better query plans, especially when the usage of one index is a subset of another. (check-in: 8f869ca7a6 user: drh tags: query-plan-experiments) | |
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2014-03-28
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| 14:41 | Disable the wal64k.test script for non-unix systems since it depends on unix-only features. (check-in: 27deb6e49b user: drh tags: trunk) | |
| 12:56 | Fix a harmless compiler warning. (check-in: a4e47150f3 user: drh tags: trunk) | |
| 03:12 | Enhance the sqlite3VdbeRecordCompare() routines so that if they encounter database corruption, they will set the UnpackedRecord.isCorrupt field and return 0. The sqlite3BtreeMovetoUnpacked() routine detects this and returns SQLITE_CORRUPT, causing the corruption to be reported back to the top-level. (check-in: 7fa85eaaaf user: drh tags: trunk) | |
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2014-03-27
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| 18:36 | Minor cleanup of the code in the query planner that computes the costs estimates for the various plans. There are no changes to the costs at this time. But the code is slightly more readable now and that might facilitate future enhancements. (check-in: 9b4d7226bc user: drh tags: trunk) | |
| 14:05 | Enhance the logest.c utility with new operators: "dup", "inv", "log", and "nlogn". Provide help on an invalid input. (check-in: b4bd2a062c user: drh tags: trunk) | |
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2014-03-26
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| 15:14 | Add an extra test case for the potential buffer overread patched by [28ddecff04]. (check-in: f585f5d7a0 user: dan tags: trunk) | |
| 15:05 | Add a test case to verify that the previous change avoids excess buffer overread in sqlite3VdbeRecordCompare(). (check-in: 2b28e8d582 user: drh tags: trunk) | |
| 14:51 | Earlier detection of corruption in sqlite3VdbeRecordCompare() in order to avoid a potential buffer overread. (check-in: 28ddecff04 user: drh tags: trunk) | |
| 12:02 | Add an assert() and a comment to clarify the operation of the vdbeRecordCompareInt() routine. (check-in: 851abdb8fd user: drh tags: trunk) | |
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2014-03-25
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| 20:28 | Adjust the repeat counts on several tests in speedtest1 so that the relative time spent on the test is roughly the same regardless of --size. (check-in: 7922809ee0 user: drh tags: trunk) | |
| 17:45 | Add another performance test case to speedtest1. This case is another ORDER BY test but this time without LIMIT. (check-in: 9ab7ffd592 user: drh tags: trunk) | |
| 14:54 | Add an ORDER BY test case to speedtest1.c (check-in: 588122641e user: drh tags: trunk) | |
| 11:00 | Detect when a VdbeCursor is still pointing at a valid row but that row has moved, and invalidated the return from prior sqlite3BtreeDataFetch() or sqlite3BtreeKeyFetch() calls. (check-in: e6798871ce user: drh tags: trunk) | |
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2014-03-24
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| 16:30 | Remove unused variables Parse.nColCache and Parse.iColCache. (check-in: 4d7551ce46 user: dan tags: trunk) | |