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100 descendants and 100 ancestors of [a9a2aeab]

2014-06-19
23:38
Add the ability to decode the headers of individual cells, byte-by-byte, in the "showdb.exe" utility. check-in: 306b461d user: drh tags: trunk
2014-06-18
18:10
Add the "LogEst" and "LogEst.exe" target to the makefiles. check-in: 7b91b058 user: drh tags: trunk
15:24
Fix a comment on the sqlite3Utf8Read() routine. No changes to code. check-in: 5e514f6a user: drh tags: trunk
15:18
Merge in all recent changes from trunk, and especially the automatic index enhancements. check-in: 0e1b7349 user: drh tags: threads
15:11
Prevent an automatic index from taking the place of a declared index. check-in: 0a52bddd user: drh tags: trunk
2014-06-17
20:16
Prevent an automatic index from taking the place of a declared index. Closed-Leaf check-in: 4ece839d user: drh tags: autoindex-improvements
17:00
Fix a missing space in a "wheretrace" comment. No changes to production code. check-in: b500f2a0 user: drh tags: trunk
16:11
Add the likely() function for symmetry with unlikely(). The likely(X) function means the same thing as likelihood(X,0.9375). check-in: 38965484 user: drh tags: trunk
15:53
Improvements to query planning, especially in regards to estimating the cost and benefit of automatic indexes. check-in: 1272fb89 user: drh tags: trunk
13:23
Add the autoindex2.test testing module. check-in: ffe3fea4 user: drh tags: autoindex-improvements
12:33
A different approach to the autoindex problem that deletes query-planner code rather than adding it. check-in: f270fb6e user: drh tags: autoindex-improvements
09:52
Simplification to the logic that prevents automatic indexes from being formed on constant expressions. check-in: 36d67e1d user: drh tags: autoindex-improvements
09:00
Allow an automatic index on a WHERE constraint where the RHS is does not reference another table as long as the RHS is not a constant. check-in: 58acc2a8 user: drh tags: autoindex-improvements
02:46
Do not attempt to create an automatic index on a constant constraint, as doing so is pointless. check-in: d6883e96 user: drh tags: autoindex-improvements
2014-06-16
22:45
Fix CSV import issue, reported via the mailing list, in the shell when the file to be imported ends with an empty line. check-in: fc918f7d user: mistachkin tags: trunk
21:30
In the "wheretrace" logic (disabled for normal builds) expand the print width of the flags field to be wide enough for all 17 bits. check-in: 3181d206 user: drh tags: trunk
18:35
Add the SQLITE_UNLINK_AFTER_CLOSE compile-time option. If enabled, the unlink of temporary files on unix is deferred until after the file is closed. check-in: e43a2f92 user: drh tags: trunk
18:17
Add an application ID for MBTiles tilesets. check-in: 837f6404 user: drh tags: trunk
16:41
Back out the unix VFS changes that seeks to avoid fstat() calls after an unlink(). That change did not clear the problem on FuseFS. check-in: 0617e20a user: drh tags: trunk
15:01
Add the ".eqp" dot-command to the ".help" output in the command-line shell. This was accidently omitted when the ".eqp" command was originally implemented for SQLite 3.8.4 (check-in [e6ecf7337658624]). check-in: b0b4c776 user: drh tags: trunk
12:51
Fix the extension01.test script so that it works on windows. Fix a harmless compiler warning in the fileio extension. check-in: baf95a19 user: drh tags: trunk
12:44
Add test cases for the fileio extension. check-in: 86343331 user: drh tags: trunk
2014-06-13
13:43
Add the fileio.c loadable extension, that implements readfile() and writefile() SQL functions. check-in: 0ca104d8 user: drh tags: trunk
13:08
Add an extension that implements compress() and uncompress() SQL functions. check-in: d5c17d1a user: drh tags: trunk
2014-06-12
17:10
Increase the WAL-mode SQLITE_PROTOCOL timeout to 10 seconds. check-in: 2aeacf81 user: drh tags: trunk
15:46
Simplify the estLog() routine. check-in: 6c68d758 user: drh tags: trunk
2014-06-10
20:18
Proposed change to the fix for ticket [1c69be2dafc28b] such that legacy applications that were exploiting the older buggy behavior in SQLite continue to work. Leaf check-in: 401a0ca3 user: drh tags: group-by-name-resolution
2014-06-09
20:39
Avoid an unnecessary initialization of the szFile field of unixFile in the unix VFS. check-in: 6484fb5a user: drh tags: trunk
20:24
Enhance the unix VFS so that it keeps track of the size of unlinked files internally and thus avoids the need to call fstat() on those files, since fstat() does not work reliably on unlinked files on some implementations of FuseFS. check-in: 10707d35 user: drh tags: trunk
20:06
Enhance the unix VFS so that it keeps track of the size of unlinked files internally and thus avoids the need to call fstat() on those files, since fstat() does not work reliably on unlinked files on some implementations of FuseFS. Closed-Leaf check-in: c41df393 user: drh tags: omit-fstat-after-unlink
13:11
Modify the %nonassoc directive in lemon so that it generates a run-time error rather than a parsing conflict. This changes is due to a bug report on the mailing list. SQLite does not use the %nonassoc directive in its grammar so this change does not affect SQLite. check-in: 1925f3a0 user: drh tags: trunk
2014-06-06
20:49
Add a test case to ensure that estLog() works for negative numbers. check-in: 813469d9 user: drh tags: trunk
20:20
Make sure the estLog() routine in the query planner handles negative values correctly (always returning 1). Prior to this change, estLog(-1) would return a large number which could throw off the cost computations in the query planner in obscure circumstances. check-in: 75437bee user: drh tags: trunk
17:09
Fix an obsolete comment on the whereRangeScanEst() routine. No changes to code. check-in: b16bf851 user: drh tags: trunk
2014-06-05
13:22
Bring the threads branch up-to-date with the 3.8.5 release. check-in: e4b01676 user: drh tags: threads
12:53
Merge in the 3.8.5 release changes and the FTS integrity-check fix. check-in: 2dbdfa51 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: 7123bb26 user: dan tags: trunk
2014-06-04
14:06
Version 3.8.5 check-in: b1ed4f2a user: drh tags: trunk, release, version-3.8.5
2014-06-03
20:09
Merge the 3.8.5 release candidate changes into the sessions branch. check-in: 09e75d82 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: 6d818052 user: drh tags: trunk
11:32
Add a test to double-check that [1cbe7a0883] did not affect anything. check-in: c6b512a7 user: dan tags: trunk
2014-06-02
21:00
Remove the WHERE_LIKELIHOOD bit, as it does not seem to effect any result. check-in: 1cbe7a08 user: drh tags: trunk
18:24
Fix a typo in a requirements mark comment in a test script. No changes to code. check-in: 75ff459b user: drh tags: trunk
11:26
Fix the query planner so that it once again knows that queries without a FROM clause will never return more than one row and hence do not require sorting. check-in: 9f18b303 user: drh tags: trunk
09:39
Add the "valgrind-nolookaside" permutation to permutations.test. check-in: 8e8472d9 user: dan tags: trunk
2014-05-31
15:43
Fix a harmless "scan-build" compiler warning in the command-line shell. check-in: 39fafe0a user: drh tags: trunk
15:39
Fix a compile of harmless static analyzer warnings. check-in: 7e287f20 user: drh tags: trunk
2014-05-30
21:01
Revise locking retry semantics in Win32 VFS to abort early if the file handle is reported as invalid. check-in: a4df4a5b user: mistachkin tags: trunk
16:54
Add extra checking of the database extended error code. Closed-Leaf check-in: f2906c44 user: mistachkin tags: winLockHandle
16:42
Add tests for the invalid file handle detection logic in the winLock() function. check-in: ed5a9eb4 user: mistachkin tags: winLockHandle
2014-05-29
20:39
Fix a harmless compiler warning in the command-line shell code. check-in: a80527f6 user: drh tags: trunk
20:36
Merge trunk changes into the apple-osx branch. check-in: b9fad449 user: drh tags: apple-osx
20:29
Merge trunk changes into the sessions branch. check-in: 9f18e78f user: drh tags: sessions
20:24
Merge changes from the trunk into the threads branch. check-in: 416cb091 user: drh tags: threads
20:17
Fix to the EXPLAIN indentation logic in the command-line shell. check-in: 8f916ed1 user: drh tags: trunk
12:36
Improvements to error messages for errors in the dot-commands of the command-line shell. Add the ".once" command. The output of ".help" now goes to the designated output channel. check-in: 48dce821 user: drh tags: trunk
03:17
Only quote the arguments to the ".shell" and ".system" commands if they contain spaces. check-in: e58f4bd3 user: drh tags: trunk
2014-05-28
20:22
Add the ".shell" and the ".system" commands (aliases for the same thing) to the command-line shell. check-in: d018a34a user: drh tags: trunk
10:00
Add an extra test to verify that the FTS notindexed option is working. check-in: c461c0fe user: dan tags: trunk
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: 7d445e59 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: d43e2e59 user: mistachkin tags: winLockHandle
03:23
Revise how OSTRACE reports logically boolean results in the Win32 VFS. check-in: c405f971 user: mistachkin tags: trunk
2014-05-27
20:19
Remove an incorrect assert() in the sorter. check-in: b8b66103 user: drh tags: trunk
19:18
Fix harmless compiler warnings. check-in: 20b75460 user: drh tags: trunk
18:18
Change the name of the Index.autoIndex field to Index.idxType and provide symbolic names for the various values of that field rather than using magic numbers. check-in: d16e575d user: drh tags: trunk
17:57
Avoid unnecessary cursor opens and seeks when running the OR-optimization on a WITHOUT ROWID table. check-in: 9c785c58 user: drh tags: trunk
16:41
Improved comments on the OR-optimization logic in the query planner. check-in: 77fef5a3 user: drh tags: trunk
15:21
Remove unused code (previously #ifdef-ed out) from btree.c. check-in: 8bc97371 user: drh tags: trunk
11:54
Fix a harmless compiler warning in the FTS4 logic. check-in: 64a869ad user: drh tags: trunk
11:42
Add a test to whereI.test that uses a multi-column PK. check-in: aa183e60 user: dan tags: trunk
10:57
Fix for (unsupported) SQLITE_USE_FCNTL_TRACE code. check-in: 994b2b7a user: drh tags: trunk
2014-05-26
22:05
Add the OR-optimization to WITHOUT ROWID tables. check-in: 06a23b8b user: drh tags: trunk
22:01
Minor enhancements to comments and clarification of the code. Closed-Leaf check-in: cbec30d0 user: drh tags: without-rowid-or-opt
20:25
Add a missing VdbeCoverage() macro on an OP_Found opcode added in the previous check-in. check-in: b4980a07 user: drh tags: without-rowid-or-opt
20:15
Merge recent trunk changes into the threads branch. check-in: 82152027 user: drh tags: threads
20:08
Merge recent trunk changes into the apple-osx branch. check-in: 54b5fa77 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: 2c7e277b user: dan tags: without-rowid-or-opt
20:00
Merge recent trunk changes into the sessions branch. check-in: a769c7e0 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: 856d44a2 user: dan tags: trunk
16:40
Fix a problem in FTS4 where columns with names that are prefixes of any notindexed column were also being (incorrectly) marked as not indexed. For example in "CREATE ... t1(abc, bc, abcd, notindexed=abcd)", both abc and abcd were being treated as notindexed. check-in: d90c4964 user: dan tags: trunk
2014-05-24
17:15
Remove references in comments to VDBE opcodes that no longer exist. This is a documentation change only; no changes to code. check-in: ebfb51fe user: drh tags: trunk
2014-05-23
17:17
Changes to the output of EXPLAIN QUERY PLAN to make it clearer when a query uses the PRIMARY KEY index of a WITHOUT ROWID table. check-in: 9268df30 user: dan tags: trunk
12:03
In the command-line shell, if three or more interrupt signals (control-c) are received in a row without a response from sqlite3_interrupt() then call exit(1) immediately. This allows control-C to interrupt the shell even if it is stuck in a computation or loop that does not involve the VDBE. check-in: b5cde571 user: drh tags: trunk
11:48
Make sure sufficient VDBE registers are allocated for an INSERT...SELECT when there is an idlist on the insert table that includes an explicit rowid. Ticket [e9654505cfda93610585fde5a9bbf2e730c8a8d5] check-in: 9a2dd187 user: drh tags: trunk
2014-05-22
09:58
Add a test for the EQP output of a skip-scan query that uses the PK index of a WITHOUT ROWID table. check-in: 10238fad user: dan tags: trunk
2014-05-21
08:48
Do not burn memory remembering CHECK constraints in a read-only database. check-in: 34ddf02d user: drh tags: trunk
08:21
Fix the sqlite3_db_readonly() API so that it reports true if the database is readonly because the file format write version (byte 18 of the header) is too large. check-in: 8d8af114 user: drh tags: trunk
2014-05-20
19:11
Improvements to the testability of the threads.c module. check-in: 386e0888 user: drh tags: threads
11:03
In vdbesort.c, change the names of PmaReader variables "pIter" to "pReadr". Other related comment changes. The generated object code should be the same. check-in: 99efb235 user: drh tags: threads
00:27
Merge all recent trunk changes into the apple-osx branch. check-in: 23722be4 user: drh tags: apple-osx
00:20
Merge recent trunk changes into the sessions branch. check-in: 2d33afe0 user: drh tags: sessions
2014-05-19
23:17
Merge recent changes from trunk. check-in: 6eefdad9 user: drh tags: threads
19:26
Fix harmless compiler warnings in MSVC. Leaf check-in: aa7e2041 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: 17349a49 user: drh tags: safer-malloc
2014-05-17
16:56
Internally, use a 64-bit integers for segment level numbers. check-in: 8180e320 user: dan tags: trunk
15:10
Fix a broken test case in fts4growth2.test. check-in: 9fde5b96 user: dan tags: trunk
2014-05-16
23:38
Fix harmless compiler warnings. Closed-Leaf check-in: 7e60347e user: mistachkin tags: ftsWarnings
23:15
Work around compilation issue with MSVC. check-in: 9623a29c user: mistachkin tags: trunk
16:16
Fixes to prevent an FTS index from growing indefinitely as the corresponding table is updated. Change the FTS 'automerge' option to allow the user to specify the number of segments that should be merged simultaneously by auto-merges. check-in: a75f1800 user: dan tags: trunk
15:48
Add extra test to backcompat.test to ensure that old and new versions of FTS may work together on the same incremental merge operation. Closed-Leaf check-in: 3997d47b user: dan tags: fts4-experimental
10:30
Fix a bug causing an incorrect segment size value to be stored if both an old and new FTS version performed work on the same incremental merge operation. check-in: a9a2aeab user: dan tags: fts4-experimental
2014-05-15
19:05
Merge latest trunk changes with this branch. check-in: 5809986f user: dan tags: fts4-experimental
18:36
Fix a problem with the handling of delete markers by automerge on large databases. check-in: 2b09bd17 user: dan tags: fts4-experimental
2014-05-14
19:49
Do not search for promotable segments following an FTS 'optimize' operation or creation of a new segment on the oldest existing level. check-in: 34f6b4b8 user: dan tags: fts4-experimental
18:45
Fix a problem to do with loading the value of the FTS automerge setting from the database. check-in: 7268119f user: dan tags: fts4-experimental
15:58
Fix various problems to do with segment promotion. Add test file fts4growth2.test, containing tests to check that the FTS index does not grow indefinitely as the table is updated. Allow the user to configure the number of segments merged simultaneously by the automerge option. check-in: 21491a9b user: dan tags: fts4-experimental
2014-05-13
20:11
Fix a problem preventing delete markers from ever being removed from the FTS index. check-in: 7f47ae5c user: dan tags: fts4-experimental
2014-05-12
22:36
Improve a comment in the MSVC makefile. No changes to code. check-in: 0901dcce user: mistachkin tags: trunk
21:12
Add VSIX packaging support for Windows Phone 8.1 using Visual Studio 2013 Update 2. check-in: 013738f3 user: mistachkin tags: trunk
20:04
Experimental code to prevent FTS indexes from growing indefinitely as the table is updated. check-in: b3b505a4 user: dan tags: fts4-experimental
15:37
In mutex_w32.c, make inclusion of the Windows header file dependent on SQLITE_OS_WIN, not SQLITE_MUTEX_W32. check-in: 93ffbcc0 user: mistachkin tags: trunk
2014-05-10
17:33
Merge updates from trunk. Emit the AppliesTo and DependsOn SDK manifest attributes when building the VSIX for Windows Phone 8.1. Closed-Leaf check-in: f6237a5f user: mistachkin tags: vsixWinPhone81
17:28
When using Visual Studio 2013, add the appropriate MaxPlatformVersion attribute to the VSIX SDK manifest. check-in: 0a4f5967 user: mistachkin tags: trunk
2014-05-09
23:31
Further MSVC makefile changes to support Windows Phone 8.1. check-in: a9c81815 user: mistachkin tags: vsixWinPhone81
20:54
Merge updates from trunk. check-in: f4fea7bb user: mistachkin tags: vsixWinPhone81
20:51
When cross-compiling with the MSVC makefile, make sure the correct library path is used. Also, keep track of the required compilation options separately. check-in: c3dce2e7 user: mistachkin tags: trunk
2014-05-07
21:16
Include sqlite3rtree.h in the tsrc/ pile of source files during target_source in the main.mk makefile. check-in: 116bed5a user: drh tags: trunk
20:33
Remove a superfluous variable initialization. check-in: 68766f83 user: drh tags: trunk
20:24
A better fix for the group_concat() problem. check-in: 1c086dee user: drh tags: trunk
19:59
Fix the way parenthesis in MATCH expressions are handled by FTS if the tokenizer considers them to be token characters. check-in: e21bf7a2 user: dan tags: trunk
18:23
Make sure the group_concat() function returns an empty string, not a NULL, if it has at least one input row. Fix for ticket [55746f9e65f8587]. check-in: d01cedaa user: drh tags: trunk
18:21
Ensure that the sqlite3StrAccumAppend() routine is never called with a NULL second argument. Doing so is harmless when N==0, but it causes an assert() to fail that was placed to quiet static analyzers. Closed-Leaf check-in: f03fbf37 user: drh tags: tkt-55746f9e
17:19
Make sure the group_concat() function returns an empty string, not a NULL, if it has at least one input row. Fix for ticket [55746f9e65f8587]. check-in: 0deac873 user: drh tags: tkt-55746f9e
15:46
Add the SQLITE_IOCAP_IMMUTABLE bit as a possible return value from the xDeviceCharacteristics method in the VFS. Add the "nolock" and "immutable" query parameters to URI filenames. check-in: 1a0d7d3d user: drh tags: trunk
15:32
Fix nolock and immutable so that they work even if READONLY is requested. Closed-Leaf check-in: e193aced user: drh tags: win32-none
15:09
Add test cases and documentation for the nolock and immutable query parameters. check-in: 19d56cba user: drh tags: win32-none
2014-05-06
21:37
Merge updates from trunk. check-in: 69698ae9 user: mistachkin tags: vsixWinPhone81
21:37
Update the template VSIX package file as well. check-in: 99d96765 user: mistachkin tags: trunk
21:30
Merge updates from trunk. check-in: 7579c44a user: mistachkin tags: vsixWinPhone81
21:26
Enhance the VSIX package creation tool to better support Visual Studio 2013. check-in: c1fb04f6 user: mistachkin tags: trunk
00:09
Refactor VSIX package creation tool to better support Visual Studio 2013. check-in: 8be166af user: mistachkin tags: vsixWinPhone81
2014-05-05
22:50
Merge updates from trunk. check-in: 668ed76a user: mistachkin tags: vsixWinPhone81
22:43
When building for Windows 8.0 using Visual Studio 2013, make sure the cross-compilation native library path is set correctly. check-in: c1ab9092 user: mistachkin tags: trunk
21:08
More modularization work on the MSVC batch build tool. check-in: 9a06773a user: mistachkin tags: trunk
20:35
Merge updates from trunk. check-in: eaa8fc81 user: mistachkin tags: vsixWinPhone81
20:32
Create new header file "os_setup.h" used to detect the operating system at compile-time, and "os_win.h" that contains windows-specific header in formation. check-in: bd92e0f8 user: drh tags: trunk
20:24
Work on cleaning up the MSVC batch build tool integration with Visual Studio 2013. check-in: b5a72dfd user: mistachkin tags: trunk
20:21
Attempt to fix the build on beagleboard. Closed-Leaf check-in: 3ac75725 user: drh tags: winHdr
18:24
Centralize and reform use of the Win32 related include files. check-in: 857f2baf user: mistachkin tags: winHdr
17:49
Merge updates from trunk. check-in: 6f07f20e user: mistachkin tags: vsixWinPhone81
17:45
Merge updates from trunk. check-in: a3cfd813 user: mistachkin tags: winHdr
17:43
Fix several header file comments. No changes to code. check-in: dd6eb5d1 user: mistachkin tags: winHdr
2014-05-02
22:39
Enhance the Win32 VFS I/O retry logic. check-in: 47605043 user: mistachkin tags: trunk
21:42
Merge updates from trunk. Closed-Leaf check-in: 598a3875 user: mistachkin tags: winIoRetry
21:38
Merge updates from trunk. check-in: c4d1d8a0 user: mistachkin tags: winHdr
14:54
Fix a broken test case in fuzz.test. check-in: faa46935 user: dan tags: trunk
00:09
Add a comment explaining why WhereLoop cost adjustments are omitted for skip-scan loops. check-in: 3bc43594 user: drh tags: trunk
2014-05-01
20:26
Fix an obscure problem to do with temp register allocation that could occur if more than one simple SELECT within a compound SELECT uses a partial sort. check-in: 427409ae user: dan tags: trunk
20:24
Add #ifdefs for test coverage. Add a testcase(). check-in: be2702ce user: drh tags: trunk
10:19
Update a test case in wal2.test that explicitly corrupts a checksum in the wal file to account for the fact that the first byte of said checksum may initially be 0xFF. check-in: 2b935bde user: dan tags: trunk
01:49
Take out the special handling of nolock=true in os_win.c and add it to pager.c, so that it works for all VFSes. Add the pPager->noLock boolean for clarity. check-in: 725c1c14 user: drh tags: win32-none
01:20
Avoid unnecessary xUnlock operations on temp file. check-in: 1829c38c user: drh tags: win32-none
01:13
Add the immutable=TRUE query parameter and SQLITE_IOCAP_IMMUTABLE, either of which prevents locking of the database and omits tests for existance of journal files. check-in: 71f152c8 user: drh tags: win32-none
2014-04-30
20:32
Merge in all recent changes and enhancements from trunk. check-in: 84243f84 user: drh tags: win32-none
18:11
Fix a problem in calculating the costs of "OR" scans. check-in: 9bbca48b user: dan tags: trunk
15:22
Modify the way the costs of various query plans are estimated. If the user supplies a likelihood() value (or equivalent) on an indexed WHERE constraint, use it to estimate the number of index rows visited. check-in: 90e36676 user: dan tags: trunk
15:00
Add text to the header comment of whereLoopAddBtree() describing how the costs of various b-tree loops are estimated. Closed-Leaf check-in: 05e6e16c user: dan tags: experimental-costs
14:53
Update a couple of test cases to account for the fact that this branch prefers an index scan and partial sort over a full-table scan and full external sort. check-in: 9b975bf3 user: dan tags: experimental-costs
14:47
Fix a couple of out-of-date comments in where.c. check-in: eefeda32 user: dan tags: experimental-costs
14:22
Improved rendering of LogEst values corresponding to real values near 0.0 in the tool/logest.c utility program. check-in: 32910c8c user: drh tags: experimental-costs
13:19
Fix long-standing typos in comments. check-in: b9f91317 user: drh tags: experimental-costs
2014-04-29
19:01
Test that the default values used when sqlite_stat1 data is not available are calculated correctly. Fixes for the same. check-in: e2d42f90 user: dan tags: experimental-costs
16:46
Merge trunk changes into this branch. check-in: d74299f0 user: dan tags: experimental-costs
16:10
Ignore likelihood() values on indexed IPK lookups. check-in: 5bb7757a user: dan tags: experimental-costs
12:01
Fix a test case so that it updates sqlite_stat1 consistently. check-in: 2dc5a0b5 user: dan tags: experimental-costs
2014-04-28
20:11
Do not reduce the number of rows scanned at all for "IS NOT NULL" constraints. Fix a bug in calculating the number of rows visited by scans of partial indicies. check-in: a8ae93f0 user: dan tags: experimental-costs
19:34
The trunk assumes that an open range constraint on an indexed term (col>?) term matches 1/4 of the indexed rows, and that a closed constraint (col BETWEEN ? AND ?) matches 1/64. Change this branch to do the same. check-in: 4047ac75 user: dan tags: experimental-costs
17:56
Add the sqlite3_rtree_query_callback() API to the RTree virtual table. (Cherrypick from the sessions branch.) check-in: af2cbe64 user: drh tags: trunk
15:11
Update unordered.test to take into account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. check-in: 20f468df user: dan tags: experimental-costs
12:08
Add an extra column to a table in analyze9.test to give the planner a little more reason to select an index. check-in: 1b95544f user: dan tags: experimental-costs
10:00
Update test script analyze3.test to account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. check-in: 35f46a55 user: dan tags: experimental-costs
09:35
Modify internal function whereLoopAdjustCost() so that it does not prefer a skip-scan over a regular index scan even if the regular scan uses a subset of the WHERE terms used by the skip-scan. check-in: 88a5758d user: dan tags: experimental-costs
08:49
Fix an error in estimating of the number of rows visited by a range scan. check-in: d491de62 user: dan tags: experimental-costs
2014-04-26
20:21
Fix an sqlite3_stmt_status() problem caused by recent changs on this branch. check-in: dee20409 user: dan tags: experimental-costs
19:23
Update requirements marks to fix typos in the requirements text. No changes to code. check-in: f5a26365 user: drh tags: trunk
17:52
Allow the xfer optimization to proceed if the DEFAULT on the very first column of the two tables is different. This is a refinement of the fix for ticket [f67b41381a]. check-in: 349f4834 user: drh tags: trunk
14:07
Avoid transfering records between tables unless the default values for all columns are the same. Fix for [f67b41381a]. check-in: f8c4c495 user: dan tags: trunk
2014-04-25
20:22
If the user provides likelihood() data for a WHERE clause term used as part of an index key, have the planner use it when calculating the expected number of rows visited by the loop. check-in: c51efaa5 user: dan tags: experimental-costs
17:37
Add test cases to ensure correct operation of joins with a virtual table that include DISTINCT and ORDER BY clauses. Verification for ticket [388d01d4bb8f9]. check-in: 5ada136f user: drh tags: trunk
15:01
Store values loaded from the stat1 table as logarithmic values in memory. check-in: 1bd74c49 user: dan tags: experimental-costs
14:42
Make sure ORDER BY clauses on joins that involve virtual tables and that have a DISTINCT clause work correctly. This is a candidate fix for ticket [388d01d4bb8f9]. Test cases for that ticket will be checked in separately. check-in: 17113812 user: drh tags: trunk
12:35
When VDBE_PROFILE is enabled, ignore negative opcode times, which sometimes occur, perhaps due to context swaps. check-in: 4e88042f user: drh tags: trunk
2014-04-24
20:04
Changes to the way the planner calculates the costs of various table and index scans. Some test cases still failing. check-in: c5a6ec0a user: dan tags: experimental-costs
2014-04-22
19:42
Change from using the win32-none VFS to just a query parameter. check-in: ffceacf6 user: drh tags: win32-none
19:34
Add some OSTRACE calls for consistency. check-in: be292d55 user: mistachkin tags: win32-none
19:30
Add the win32-none VFS which omits rollback-journal locking. check-in: 03e3c5a8 user: drh tags: win32-none
2014-04-21
18:00
Preliminary changes to support building VSIX packages for Windows 8.0 and Windows Phone 8.0 using Visual Studio 2013. check-in: 3bf97c81 user: mistachkin tags: vsixWinPhone81
13:36
Comment tweaks on the test case for the [b75a9ca6b0] bug fix. check-in: 65d2544a user: drh tags: trunk
13:21
Avoid discarding an ORDER BY clause in the case where an identical GROUP BY clauses uses an index to group, but not sort, the rows. Fix for [b75a9ca6b0]. check-in: de9a490f user: dan tags: trunk
2014-04-18
22:20
Clean up the proper-subset cost adjustment logic to make it more compact and easier to read and so that full branch test coverage is more easily obtained. check-in: 9a5d38c7 user: drh tags: trunk
00:49
Add the SQLITE_RUNTIME_BYTEORDER compile-time option to force SQLite to check the processor byte-order at run-time. Add additional compile-time byte order checks for ARM, PPC, and SPARC. check-in: 2c536387 user: drh tags: trunk
00:08
Preliminary changes to support building VSIX packages for Windows Phone 8.1. check-in: a1b2f28b user: mistachkin tags: vsixWinPhone81
00:06
Add the SQLITE_TESTCTRL_BYTEORDER test control to interrogate SQLite's notion of the processor byte order and whether the byte order is known at compile-time or determined at run-time. check-in: 9c696196 user: drh tags: trunk
2014-04-14
19:48
Make sure the undocumented sqlite_rename_parent() function does not crash even if it is invoked with NULL arguments. Ticket [264b970c4379fd4b94] check-in: c6fa8d0d user: drh tags: trunk
2014-04-13
19:28
Remove the unused second argument from sqlite3ExprCachePop(). Add an ALWAYS() on an always-true conditional in sqlite3VdbeResolveLabel(). check-in: ab23abf3 user: drh tags: trunk
19:15
Make sure column cache elements are cleared correctly when jumping over code for key generation in a partial index. Fix for ticket [2ea3e9fe6379fc3f6]. check-in: 3122b836 user: drh tags: trunk
2014-04-10
02:24
Modify the OR-clause handling so that it can safely deal with OR-clause with 17 or more terms. Fix for ticket [10fb063b1179be53ea0b53bb]. check-in: a67b5312 user: drh tags: trunk
2014-04-04
18:49
Performance improvements when reading large blobs, especially if SQLITE_DIRECT_OVERFLOW_READ is defined. check-in: 2312eb6a 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: 683dd379 user: drh tags: trunk
14:12
Ensure the "PRAGMA journal_mode=WAL" works coming from any other journal_mode with ATTACH-ed databases. check-in: e54330b4 user: drh tags: trunk
2014-04-03
16:29
Use OP_Copy instead of OP_SCopy when moving results out of a subquery, to prevent the subquery results from changing out from under the outer query. Fix for ticket [98825a79ce1456]. Problem introduced by check-in [1e64dd782a126f48d78]. check-in: d5513dfa user: drh tags: trunk