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100 check-ins occurring around f5875489810101c1.

2016-05-20
19:51
Slight performance improvement in the OP_Column opcode. check-in: 5c157474 user: drh tags: trunk
18:09
Remove the sqlite3PagerClearCache() routine, which does not accomplish anything useful. check-in: f250166b user: drh tags: trunk
15:53
Performance optimization and size reduction on the freeP4() routine. check-in: 4dc56e86 user: drh tags: trunk
15:24
Increase the version number to 3.14.0 since we are already making significant code changes. check-in: 1a0d0576 user: drh tags: trunk
15:15
Use sqlite3VdbeAddOp0() to code OP_Expire, to save a few bytes. check-in: 3d55d24d user: drh tags: trunk
14:54
Optimizations to link list merge sort code in vdbesort.c, pcache.c, and rowset.c. Resulting binaries are 10 bytes smaller and use 0.03% fewer CPU cycles. check-in: 9033afbb user: drh tags: trunk
14:11
For queries with both ORDER BY and LIMIT, if the rows of the inner loop are emitted in ORDER BY order and the LIMIT has been reached, then optimize by exiting the inner loop and continuing with the next cycle of the first outer loop. check-in: 559733b0 user: drh tags: trunk
13:44
Set the NULLEQ flag on the sequence counter comparison in the ORDER BY LIMIT optimization, to avoid coverage complaints about not testing the NULL case. Closed-Leaf check-in: ed1b30dc user: drh tags: orderby-limit
12:22
Autoconf configure.ac adjustment to try to get it to look for both editline and readline automatically. check-in: 645bd696 user: drh tags: trunk
00:21
A few simple test cases for the ORDER BY LIMIT optimization. check-in: 08849eab user: drh tags: orderby-limit
2016-05-19
22:40
Appears to work now. Needs test cases, more comments, and code optimization. check-in: 990fe50c user: drh tags: orderby-limit
22:13
In a query with both ORDER BY and LIMIT, if the inner loop satisfies the ORDER BY then try to cut short each invocation of the inner loop once the LIMIT has been satisfied. This check-in is a partial implementation only. check-in: 852d1eda user: drh tags: orderby-limit
19:31
Fixup comments on wctrlFlags value definitions. check-in: 58b516e8 user: drh tags: trunk
18:56
Clean up the WHERE_* macros used for the wctrlFlags parameter on the sqlite3WhereBegin() interface, freeing up some bits to be used for other things. check-in: d0130584 user: drh tags: trunk
17:51
Optimization marks in vdbe.c. No logic changes. check-in: cf273741 user: drh tags: trunk
16:58
Performance improvement in the OP_Column opcode. check-in: 4737cadc user: drh tags: trunk
16:21
Add test cases to test some fts3/4 edge case behaviour surrounding the '*' character. check-in: 1f577e1f user: dan tags: trunk
11:12
Small size reduction and performance improvement in the OP_Column opcode. check-in: 0d773061 user: drh tags: trunk
2016-05-18
21:03
Add the "scrub" utility program that simultaneously backs-up a live database and erases all deleted content. check-in: c981ab2a user: drh tags: trunk
21:01
Omit the unnecessary WHERE_REOPEN_IDX flag in the WHERE interface. check-in: 915416d1 user: drh tags: trunk
20:53
Merge the 3.13.0 release changes. check-in: e2e9b985 user: drh tags: apple-osx
10:57
Version 3.13.0 check-in: fc49f556 user: drh tags: trunk, release, version-3.13.0
2016-05-17
21:17
Enhance the scrub utility program so that it does a FULL checkpoint prior to starting the backup, to ensure that the database file content matches what needs to be backed up without having to look at the WAL file. Closed-Leaf check-in: ab1c5ce5 user: drh tags: scrub-backup
17:11
Merge the latest changes from trunk. check-in: 5021dfe1 user: drh tags: scrub-backup
2016-05-16
14:35
Do not run snapshot_fault.test as part of the inmemory_journal permutation. check-in: 995c084b user: dan tags: trunk
13:37
Merge recent fixes from trunk. check-in: 0d9b82af user: drh tags: apple-osx
11:55
Disable shell.exe test cases for UTF8 filenames as they do not work on MinGW. check-in: 386bcbba user: drh tags: trunk
2016-05-13
17:22
Improvements to a comment in the pcache.c file. No changes to code. check-in: b369980f user: drh tags: trunk
15:22
Remove the unused PGHDR_NEED_READ flag. Add invariant checking (during SQLITE_DEBUG builds only) for the PgHdr object. check-in: 771c5411 user: drh tags: trunk
12:12
Clarification of the pagerFlushOnCommit() logic. check-in: 3401d9dc user: drh tags: trunk
11:50
Fix pager_end_transaction() to ensure that a ROLLBACK does not clobber unwritten pages in a TEMP file pcache. check-in: 9495d338 user: drh tags: trunk
04:24
Additional debugging and tracing logic for pcache.c, turned off by default using an "#if 0". check-in: 32a62e3b user: drh tags: trunk
2016-05-12
19:17
Disable ALWAYS and NEVER when compiled with SQLITE_MUTATION_TEST. check-in: 24d9fbc1 user: drh tags: trunk
19:05
Simplification of the sqlite3FaultSim() call inside of sqlite3PagerCommitPhaseOne(). check-in: 1b0f4cc3 user: drh tags: trunk
18:38
Add an assert in pager.c to confirm that pPager->tempFile is always true for in-memory databases. check-in: 3fd71092 user: drh tags: trunk
17:06
Add extra OPTIMIZATION-IF-FALSE comments where required to pcache.c. check-in: 9d55b8f5 user: dan tags: trunk
12:08
For in-memory databases, it does not matter if pcache entries are marked "clean" or "writable". check-in: 06c1e27c user: drh tags: trunk
12:01
Remove an unnecessary call to sqlite3PcacheMakeClean() inside of the ROLLBACK logic. check-in: 0dc50d99 user: drh tags: trunk
09:48
Add a missing OPTIMIZATION-IF-FALSE comment to pcache.c. check-in: bc202e5b user: dan tags: trunk
2016-05-11
23:54
For in-memory databases, it does not matter if pcache entries are marked "clean" or "writable". Closed-Leaf check-in: ad601c79 user: drh tags: pager-dev
20:03
Remove a redundant condition from pcache.c. Add an OPTIMIZATION-IF-TRUE comment to another condition that requires it. check-in: 3bfd2621 user: dan tags: trunk
18:20
Remove a redundant condition from pcache.c. Add an OPTIMIZATION-IF-TRUE comment to another condition that requires it. Closed-Leaf check-in: 4533ed35 user: dan tags: mistake
15:41
Remove some a small amount of redundant code related to PCache.pSynced from pcache.c. check-in: 9cc8cad7 user: dan tags: trunk
12:47
Do not reset the page cache when a rollback journal truncate fails, as doing so can cause loss of information for an in-memory TEMP file. check-in: 345ce1c9 user: drh tags: trunk
11:04
Always truncate, rather than persist, the rollback journal of a TEMP database. check-in: 42fb6f1e user: drh tags: trunk
10:57
Add pcache tracing macros. Off by default. Requires changing an "#if 0" and recompiling to enable. check-in: d9313d19 user: drh tags: trunk
2016-05-10
20:16
Add another test case to temptable3.test. check-in: 22364024 user: dan tags: trunk
20:03
Fix a problem in sqlite3PagerMovepage() when working on a temp table for which pages have been spilled. check-in: 20cf8811 user: drh tags: trunk
2016-05-09
23:11
Fixes to requirements marks. No changes to code. check-in: 79ecd0ef user: drh tags: trunk
22:35
Enhancements to test/sort5.test so that it works with SEE. check-in: 8a39c8ee user: drh tags: trunk
22:32
Remove some forgotten debugging lines from test/sort5.test. check-in: f5875489 user: drh tags: trunk
19:58
Omit the unnecessary WHERE_REOPEN_IDX flag in the WHERE interface. Closed-Leaf check-in: da94a6e0 user: drh tags: dev
19:03
Update a comment in fts5.h. No changes to code. check-in: 14e53d0e user: dan tags: trunk
18:05
Fix the FTS5 xQueryPhrase() API function so that it recognizes column filters. check-in: 48505cde user: dan tags: trunk
2016-05-07
18:02
Add options to bc_test1.c to make it more flexible. check-in: ec6ef5f2 user: dan tags: begin-concurrent
12:15
Make the sqlite3DeleteTable() routine smaller and faster. check-in: d75140b8 user: drh tags: trunk
12:15
Fix typo in the intpkey-17.2 test. check-in: a45fda65 user: drh tags: trunk
2016-05-06
21:04
Add test/bc_test1.c, for testing the degree of concurrency provided by this branch under various conditions. check-in: 128c7eae user: dan tags: begin-concurrent
20:23
Simplification to the logic used to decide between OP_Seek and OP_NotExists. Use OP_NotExists for both DELETE and UPDATE. check-in: 3a695263 user: drh tags: trunk
18:47
Corrections to comments on the whereScanInit() interface. check-in: ab7ab415 user: drh tags: trunk
16:49
For DELETE operations, make sure that seeks on the main table are not deferred, since if they are and none of the indexes reference columns of the table, the seek might never occur until the OP_Delete opcode, which is too late. Fix for ticket [16c9801ceba49]. check-in: 93a2bace user: drh tags: trunk
16:30
Fix an error in main.mk causing testfixture to use individual fts5 source code files instead of fts5.c. check-in: 933a1c81 user: dan tags: trunk
16:06
In the WHERE generator, when building code for a DELETE operation, make sure that seeks to the main table are not deferred. This is a better fix for the [16c9801ceba49] bug than the previous. Closed-Leaf check-in: 150dd09e user: drh tags: ticket-16c9801ce
15:16
Fix a bug in sqlite_analyzer causing it report (slightly) incorrect values for the number of entries in indexes or WITHOUT ROWID tables. check-in: dc37750d user: dan tags: trunk
11:31
Do not scan indexes that have the integer primary key as their left-most column. This fixes the crash of ticket [16c9801ceba] but it seems like the wrong fix. More investigation needed. check-in: 50312273 user: drh tags: ticket-16c9801ce
2016-05-05
23:59
Additional error reporting. Open the source database read/write so that it can delete the WAL file when done. check-in: d2efd3c1 user: drh tags: scrub-backup
23:39
Working when run against sqlite.fossil. check-in: b0bd9dd6 user: drh tags: scrub-backup
23:09
Finished implementation compiles, but untested. check-in: aeb88bdf user: drh tags: scrub-backup
17:15
Initial check-in of the "scrub.exe" utility program prototype. Not yet fully functional. In particular, no scrubbing is done. check-in: bdf2ec77 user: drh tags: scrub-backup
11:53
Renumber internal constants in the printf() implemention for a small performance improvement. check-in: 69d11447 user: drh tags: trunk
2016-05-04
21:06
Disable the session extension API if SQLITE_ENABLE_SESSION is not defined. check-in: 71af9ac1 user: drh tags: trunk
19:04
Fix typo in comment. No changes to code. check-in: 6c43ba1c user: mistachkin tags: trunk
14:45
Only disable the one-pass DELETE optimization if the WHERE clause contains a correlated subquery. Uncorrelated subqueries are allowed. This is a refinement of check-in [3f221f592a9a1] that is the fix for ticket [dc6ebeda9396087]. check-in: aae38969 user: drh tags: trunk
14:20
Portability enhancements to the configure script on the amalgamation tarball. check-in: 7184c4b8 user: drh tags: trunk
11:28
Disable the PagerDontWrite() optimization for temp tables. It can cause database corruption if a page passed to PagerDontWrite() is dirty at the start of a transaction that is subsequently rolled back. check-in: 6341ab2f user: dan tags: trunk
2016-05-03
19:40
Minor style tweaks in the MSVC makefile. check-in: 1b43358f user: mistachkin tags: trunk
19:36
Add the experimental SQLITE_FCNTL_WIN32_GET_HANDLE file control. Leaf check-in: b6ddabe1 user: mistachkin tags: win32GetHandle
14:57
The session extension is disabled by default. To enable it using --enable-session on ./configure on unix and add SESSION=1 to the nmake on Windows. Or add -DSQLITE_ENABLE_SESSION and -DSQLITE_ENABLE_PREUPDATE_HOOK to build manually. check-in: bcaa650e user: drh tags: trunk
13:14
Turn the session extension off by default. Enable using --enable-session on configure scripts, or using the SESSION=1 argument to nmake on Windows. Closed-Leaf check-in: e462cde2 user: drh tags: session-make
02:43
Fix the build when SQLITE_ENABLE_DATA_PROTECTION is defined. check-in: 8f05e140 user: drh tags: apple-osx
00:04
Avoid left-shifts of signed integers. check-in: 0715ce16 user: drh tags: trunk
2016-05-02
19:05
Remove some randomness from test script temptable2.test. check-in: 5830cf72 user: dan tags: trunk
16:59
Fix a test case in temptable2.test so that it works on systems that lack a coherient cache (ex: OpenBSD) and thus do not support the "PRAGMA mmap_size" command. check-in: 088cf838 user: drh tags: trunk
15:00
Merge enhancements and bug fixes from trunk. check-in: f52765ee user: drh tags: apple-osx
13:57
Fix harmless LLVM compiler warnings in the srcck1.c utility program used during the build process. check-in: e4af9675 user: drh tags: trunk
12:18
Disable the multi-row one-pass DELETE optimization when the WHERE clause contains a subquery. Fix for ticket [dc6ebeda9396087]. check-in: 3f221f59 user: drh tags: trunk
10:25
Improvements to the way the LIKE optimization is implemented, resulting in slightly smaller and faster code that is easier to test. check-in: 54c63b32 user: drh tags: trunk
2016-04-30
19:23
Change the way tester.tcl handes $argv so that in "permutations.test <permutation> <filename>" <filename> may be the name of any file in the test/ directory. check-in: 820c57bb user: dan tags: trunk
18:10
Remove an unnecessary branch from the OP_String8 opcode. check-in: 459a0b45 user: drh tags: trunk
17:19
More bug fixes to Lemon identified by Kelvin Sherlock. None of these have any impact on SQLite. check-in: 762bdc55 user: drh tags: trunk
02:59
Simplifications to the OP_Halt opcode implementation. check-in: daf4630f user: drh tags: trunk
2016-04-29
20:30
Fix the temporary directory search algorithm for unix so that it fails gracefully even if all candidate directories are inaccessible. This fixes a bug that was introduced by check-in [9b8fec60d8e]. check-in: 614bb709 user: drh tags: trunk
17:07
Fix the nolock VFS so that it supports shared memory. check-in: ce11f8e8 user: drh tags: apple-osx
16:01
Merge the latest enhancements from trunk. check-in: 91e5c07e user: drh tags: begin-concurrent
15:52
Merge enhancements from trunk, and in particular the TEMP file deferred I/O enhancements. check-in: 81b76901 user: drh tags: apple-osx
15:39
Postpone I/O associated with TEMP files for as long as possible, with the hope that the I/O can ultimately be avoided completely. check-in: 9d0a5ae0 user: drh tags: trunk
14:12
Fix test script temptable2.test so that it works with the "inmemory_journal" and "journaltest" permutations. Closed-Leaf check-in: b7bec7f2 user: dan tags: tempfiles-25
11:35
Merge latest trunk changes, including test case fixes, with this branch. check-in: 99794aca user: dan tags: tempfiles-25
11:33
Modify the permutations.test script so as to set any permutation specific configuration values before running each individual test script. Fix a mostly harmless buffer overread in the sessions module. check-in: 4cbd5024 user: dan tags: trunk
11:28
Lemon bug fix: Do not merge action routines unless their destructors are also identical. Problem and suggested fix reported on the mailing list by Kelvin Sherlock. check-in: 4792d6db user: drh tags: trunk