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100 check-ins occurring around 66d5f2b767.

2013-03-27
16:42
Restore additional ORDER BY optimizations that where broken by the recent ORDER BY fix. Closed-Leaf check-in: c77ee6e2 user: drh tags: orderby-fix
16:05
Improved optimization of ORDER BY. check-in: 97e5c70f user: drh tags: orderby-fix
15:04
A fix and test-case for the ORDER BY problem identified by ticket [a179fe7465]. This change causes sorting to occur in some cases where it is not strictly necessary. Further work is needed to avoid those extra sorts. check-in: 488089e6 user: drh tags: orderby-fix
03:15
Candidate fix for ticket [6bfb98dfc0c]: Make sure invalid cursors drop all references to database pages prior to doing any insert or update. check-in: 322a5f08 user: drh tags: trunk
2013-03-26
20:32
Change os_unix.c to use either one or two mappings internally. check-in: e7698cba user: dan tags: two-mappings
18:48
Fix a comment in os_unix.c. No code changes. check-in: 72813b8e user: drh tags: experimental-mmap
14:36
Change the name of the Pager.pFree field to Pager.pMmapFreelist. check-in: 611bd824 user: drh tags: experimental-mmap
14:16
In btree.c, save the positions of any open cursors before moving any pages around to auto-vacuum the database on commit. check-in: 30c0a693 user: dan tags: experimental-mmap
01:07
Previous check-in accidently left mmap turned off by default. This checkin fixes that. Unfortunately, shared.test is now segfaulting. All other veryquick tests appear to work, however. check-in: a850c731 user: drh tags: experimental-mmap
2013-03-25
23:09
Memory-mapped I/O is now on by default. The "PRAGMA mmap_limit(N)" can be used to issue a hint to the VFS to limit mmap space to N bytes. The VFS is free to ignore that hint if desired. However, if "PRAGMA mmap_limit(0)" is used, xFetch is never called. check-in: 1b37c4ef user: drh tags: experimental-mmap
20:50
Add munmap and mremap to the set of os interfaces that can be overloaded in os_unix.c. check-in: 8776047b user: drh tags: experimental-mmap
20:30
Use mremap() on Linux. check-in: 431aecc8 user: dan tags: experimental-mmap
19:57
Merge all recent trunk changes into the experimental-mmap branch. check-in: a607d63f user: drh tags: experimental-mmap
19:05
Add a test that simulates an error in mmap(). check-in: 6ec7367d user: dan tags: experimental-mmap
18:25
Simulate OOM errors in the sqlite3OsFetch() function. Run malloc.test as part of the "mmap" permutation. check-in: 77443ef2 user: dan tags: experimental-mmap
17:00
Change the signature of the xUnfetch method to "int (*xUnfetch)(sqlite3_file*, sqlite3_int64 iOfst, void *p)". check-in: 115b8305 user: dan tags: experimental-mmap
16:28
Remove unnecessary code to round the size of a memory mapping to 4KB from os_unix.c. Rename SQLITE_IOERR_MREMAP to SQLITE_IOERR_MMAP. Fix other small issues in os_unix.c. check-in: dce35c01 user: dan tags: experimental-mmap
14:31
Do not return SQLITE_IOERR when the user attempts to open a small file that is not a database with mmap enabled. Instead return SQLITE_NOTADB. check-in: bbcaab3e user: dan tags: experimental-mmap
13:50
Fix a case in the pager where an xFetch() reference was being leaked following an OOM error. check-in: 5885ba6c user: dan tags: experimental-mmap
12:02
Add a second test for [38b1ae018f]. check-in: 5062db67 user: dan tags: trunk
11:38
In fts3, when filtering lists for hits in a specific column, edit the list in place in the same way as it is for NEAR filtering. Fix for [38b1ae018f]. check-in: f85f9103 user: dan tags: trunk
2013-03-24
22:56
Remove the SQLITE_OMIT_MERGE_SORT compile-time option and its related code. The merge sorter is now a required component. check-in: 8b44d6fb user: drh tags: trunk
2013-03-23
21:00
Replace the sqlite3_io_methods.xMremap interface with sqlite3_io_methods.xFetch and xUnfetch. check-in: 1431be95 user: dan tags: experimental-mmap
17:29
Improve a comment in wal.c. No code changes. check-in: 60b9f5e4 user: dan tags: experimental-mmap
14:20
Fix a case where a checkpoint operation could write to an invalid part of a memory mapped region. check-in: 8dbe89d0 user: dan tags: experimental-mmap
12:15
In the winMremap VFS function, unmap the region prior to attempting to truncate the file. check-in: 8870c4cc user: mistachkin tags: experimental-mmap
10:09
Do not unmap the mapped file region in winTruncate as there may be outstanding pointers to it. check-in: f57a9c91 user: mistachkin tags: experimental-mmap
09:56
Preliminary changes to support the xMremap VFS method on Windows. check-in: 75a85a1c user: mistachkin tags: experimental-mmap
2013-03-22
20:15
Update wal mode tests so that they work with the mmap test permutation. check-in: f7295872 user: dan tags: experimental-mmap
19:56
Fix a potential NULL-pointer dereference in btreeSwapOutMmap(). check-in: e81ccdcd user: drh tags: experimental-mmap
19:17
Fix a case where the mapped part of a database file may be written during a backup operation. check-in: c8d67aef user: dan tags: experimental-mmap
18:20
Allow the database file to be memory mapped in wal mode. check-in: d190ddab user: dan tags: experimental-mmap
17:46
Add a fix for the assert() statements added by the previous commit. check-in: 19345416 user: dan tags: experimental-mmap
08:58
Add assert statements to os_unix.c to ensure that any mapped region of the database file is not being read or written using the xRead() or xWrite() methods. check-in: 765615f9 user: dan tags: experimental-mmap
2013-03-21
21:20
Many spelling fixes in comments. No changes to code. check-in: 6f6e2d50 user: mistachkin tags: trunk
20:39
Fix cases where xRead() was being used to read from a memory mapped part of the database file. check-in: 5c9e9df2 user: dan tags: experimental-mmap
20:00
Avoid calling xRead() on a part of the database file that is memory mapped. check-in: c8eac290 user: dan tags: experimental-mmap
15:57
Fix a problem when opening a write-transaction while there exist read-only b-tree cursors in mmap mode. check-in: 32e0bbb7 user: dan tags: experimental-mmap
14:47
Do not use the Linux mremap() call. Use the same strategy for xMremap() as on OSX instead. check-in: 5ed8ad78 user: dan tags: experimental-mmap
2013-03-20
18:25
Optimize the xMremap method in os_unix.c some. check-in: 9529ed88 user: dan tags: experimental-mmap
14:26
When possible, use memory mapping when appending new pages to a database file. check-in: 14135da3 user: dan tags: experimental-mmap
12:04
Fix text-to-numeric type casting so that it works correctly on UTF16 strings that contain characters where the LSB is numeric but the MSB is non-zero. Ticket [689137afb6da41] check-in: 5b22053f user: drh tags: trunk
10:07
Add test file mmap1.test. check-in: aee1f53a user: dan tags: experimental-mmap
2013-03-19
19:28
Add the sqlite3_io_methods.xMremap() method to the VFS interface. Also "PRAGMA mmap_size". check-in: 6183f1bd user: dan tags: experimental-mmap
17:10
Also export the sqlite3changeset interfaces in the amalgamated version of the sessions extension. check-in: 5b399f2b user: drh tags: sessions
16:12
Bring makefiles and build scripts into alignment with the sessions branch. No changes to code. check-in: d1f41089 user: drh tags: trunk
15:23
Include the sqlite3session.h header file in with sqlite3.h. Make sure the session APIs are all public. check-in: ec490336 user: drh tags: sessions
2013-03-18
17:18
Clarifications to the documentation for the sqlite3_aggregate_context() API. Also, shorten an over-length source line in sqlite.h.in. check-in: 4fe2db1d user: drh tags: trunk
16:24
Adjust the MSVC makefile so that it correctly handles the sessions extension being included in the amalgamation. Import the test case changes that appeared in 3.7.16 final. check-in: 9bac09a9 user: drh tags: sessions
11:39
Version 3.7.16 check-in: 66d5f2b7 user: drh tags: trunk, release, version-3.7.16
2013-03-16
20:19
When possible, use memcpy() to and from the mapped region instead of xWrite() and xRead(). check-in: f8ca5622 user: dan tags: experimental-mmap
2013-03-15
19:13
Fix a dropped error code in pager.c. check-in: 022fdc98 user: dan tags: experimental-mmap
18:29
Allow read-only cursors to use mmap pages even if there is an open write transaction. check-in: b387e2f9 user: dan tags: experimental-mmap
2013-03-14
18:34
Use mmap() to read from the database file in rollback mode. This branch is unix only for now. check-in: 6f21d9cb user: dan tags: experimental-mmap
2013-03-13
20:52
Merge updates from trunk. check-in: d63fa039 user: mistachkin tags: toTypeFuncs
19:02
Fix typos in MSVC makefile. check-in: 2d15c268 user: mistachkin tags: sessions
12:20
Fix main.mk so that it builds the amalgamation correctly. check-in: 0b84e277 user: drh tags: sessions
11:42
Fix a compiler warning in sqlite3VdbePreUpdateHook(). Add sqlite3session.c to the amalgamation. Fix the Makefile.in to work with sessions. check-in: e54b0225 user: drh tags: sessions
07:02
Enhance tests for ticket [4dd95f6943]. check-in: 0b452734 user: dan tags: trunk
06:48
Rename the experimental todouble() function to toreal(), update comments. check-in: 12c318ef user: mistachkin tags: toTypeFuncs
06:34
Merge latest trunk changes into this branch. check-in: d6cd3c78 user: dan tags: sessions
00:13
Fix the ORDER BY with IN constraint logic so that it works with all combinations of DESC on the ORDER BY clause, on the RHS of the IN operator, and in the index used by ORDER BY and IN. Fix for ticket [4dd95f6943fbd18]. check-in: 839aa91f user: drh tags: trunk
2013-03-12
23:58
Add a single new test case to the ORDER BY with IN logic verify that if the RHS of the IN is a descending index that it still works. Add testcase() macros to the ORDER BY with IN logic to help verify that corner cases are tested. Closed-Leaf check-in: 7e7356f1 user: drh tags: desc-orderby-fix-1
23:03
Fix typo in sqlite3_close() function documentation reported on the mailing list. check-in: c9a75d89 user: mistachkin tags: trunk
22:13
Fix a test case that had an ambiguous result. check-in: 38c6bddf user: drh tags: desc-orderby-fix-1
20:58
Fix typo in sqlite3_close() function documentation reported on the mailing list. Closed-Leaf check-in: 7232093d user: mistachkin tags: docTypo
20:38
Fix the ORDER BY optimization with IN constraints when the RHS of the IN constraint is a descending index. check-in: 62316eba user: drh tags: desc-orderby-fix-1
18:49
Revise the patch to make it easier to understand. check-in: 3ce7eb02 user: drh tags: desc-orderby-fix-1
18:44
Add test cases for [4dd95f6943]. check-in: 723c144c user: dan tags: desc-orderby-fix-1
18:40
Revised fix for the DESC ORDER BY and IN constraint bug, ticket [4dd95f6943fbd18]. The previous check-in was incorrect. check-in: 8b2eb7a4 user: drh tags: desc-orderby-fix-1
18:34
A proposed fix for the DESC ORDER BY bug of ticket [4dd95f6943fbd18]. Seems to work, but lots more testing is needed prior to moving to trunk. check-in: 614a038a user: drh tags: desc-orderby-fix-1
11:38
Merge recent changes to trunk into sessions branch. check-in: 62adb0e0 user: dan tags: sessions
09:07
Increase strictness of the new experimental functions and add more tests. check-in: 05c4463e user: mistachkin tags: toTypeFuncs
2013-03-11
13:37
Define _BSD_SOURCE when building on OpenBSD. This is required for fchmod(). check-in: f9027cb4 user: dan tags: trunk
11:57
Fixes for compiling with SQLITE_OMIT_AUTOVACUUM and/or SQLITE_OMIT_TRIGGER defined. check-in: 1da15adb user: dan tags: trunk
11:49
Fixes for compiling with SQLITE_OMIT_AUTOVACUUM and/or SQLITE_OMIT_TRIGGER defined. Closed-Leaf check-in: 938b91e8 user: dan tags: omit-fixes
06:24
Add more tests. check-in: f9468e33 user: mistachkin tags: toTypeFuncs
01:23
Add experimental tointeger() and todouble() SQL functions. check-in: 465fd853 user: mistachkin tags: toTypeFuncs
2013-03-09
14:49
Add a test case for the problem fixed by the previous commit. check-in: e899b058 user: dan tags: trunk
14:40
Fix a problem with resolving "db.view.column" references that appear in UPDATE or DELETE statements executed against views. check-in: ddee56c9 user: dan tags: trunk
2013-03-08
18:16
If SQLITE_OMIT_UTF16 is defined, avoid setting the 'enc' field of Schema objects to any value except SQLITE_UTF8. Otherwise, assert() statements may fail or spurious SQLITE_NOMEM errors may be returned at the vdbe level later on. check-in: f2fecfb2 user: dan tags: trunk
07:10
If SQLITE_OMIT_UTF16 is defined, avoid setting the 'enc' field of Schema objects to any value except SQLITE_UTF8. Otherwise, assert() statements may fail or spurious SQLITE_NOMEM errors may be returned at the vdbe level later on. Closed-Leaf check-in: 69746ef7 user: dan tags: experimental
2013-03-07
14:00
Fix the char() function so that it works even if SQLITE_OMIT_UTF16 is defined. check-in: af542c82 user: drh tags: trunk
11:03
Avoid an assertion fault and/or freeing memory while it is still in use when an error occurs during virtual table construction. Cherrypick of [a02599ad85d]. check-in: 760072ce user: dan tags: branch-3.7.14
09:39
Skip tests that require UTF-16 support when compiled with SQLITE_OMIT_UTF16. check-in: e3939142 user: mistachkin tags: trunk
06:42
Fix two compilation issues, one warning and one error, that occur only when SQLITE_OMIT_UTF16 is defined. check-in: 10ace06b user: mistachkin tags: trunk
2013-03-06
11:44
Fix a problem in incrvacuum_ioerr.test. Do not run ioerr6.test with an in-memory journal. check-in: 66576b45 user: dan tags: trunk
02:12
Merge all the latest trunk changes into the sessions branch. check-in: d69d2190 user: drh tags: sessions
01:55
Fix a bug (ticket [fc7bd6358f59]) that caused incorrect query results in three way queries that involved comparing INTEGER and TEXT columns for equality. check-in: 7097241c user: drh tags: trunk
01:48
Add the SQLITE_READONLY_ROLLBACK extended error code. Do not try to set the permissions on journal or wal files except if the filesize is initially zero (indicating that it is a new file.) check-in: ce4ac66a user: drh tags: trunk
01:41
Fix an operator precedence problem on the [1d8086902e] check-in. Closed-Leaf check-in: 4f5f3aeb user: drh tags: ex-robust-open
2013-03-05
16:54
Failed merge experimental branch with trunk. check-in: 4e6e07a6 user: dan tags: ex-robust-open
15:27
Do not attempt to set the permissions on an existing journal or wal file. Do this only immediately after creating a new file (or opening one zero bytes in size). Closed-Leaf check-in: 1d808690 user: dan tags: experimental
15:09
Add extended error code SQLITE_READONLY_ROLLBACK. Returned if a read-only connection cannot read the database because doing so would require it to roll back a hot-journal. check-in: 39247b14 user: dan tags: experimental
11:27
Fix a bug in the recent incremental-vacuum related changes. check-in: 717863fc user: dan tags: trunk
01:46
Simplified error message on the showdb utility. check-in: 8e0ced1a user: drh tags: trunk
2013-03-04
17:41
Omit a test that uses the progress handler callback from view.test if OMIT_PROGRESS_HANDLER is defined. check-in: f40552ad user: dan tags: trunk
16:35
Remove an assert() statement that has been incorrect since the recent incremental-vacuum related changes in [26e235b7a4]. check-in: 090a4712 user: dan tags: trunk
2013-03-03
20:26
Add the test_fs.c test module to Makefile.in. Adjust the success criteria on index5-1.3 so that it works under auto_vacuum configurations. check-in: b457c887 user: drh tags: trunk
2013-03-02
03:25
Update comments on the free-page allocator to accurately reflect the latest implementation. Add new asserts to the free-page allocator. check-in: 9a135e37 user: drh tags: trunk