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100 check-ins occurring around 1a249845251199c0.

2011-09-16
16:00
Further streamlining of the subquery materializer. New test cases for ticket [002caede898a] (check-in: ff8b76b2 user: drh tags: trunk)
01:38
Merge the [002caede898] fix into trunk. (check-in: 95708ae2 user: drh tags: trunk)
01:34
Add the new OP_Once opcode. Use it to clean up and simplify various one-time initialization sections in the code, including the fix for ticket [002caede898ae]. (Closed-Leaf check-in: 7f00552b user: drh tags: tkt-002caede898)
2011-09-15
23:58
Materialize subqueries using a subroutine and invoke that subroutine prior to each use of the materialization. Fix for ticket [002caede898aee4] (check-in: 4b8357ee user: drh tags: tkt-002caede898)
19:39
Adding test case for ticket [002caede898] (check-in: 62dfc51a user: drh tags: tkt-002caede898)
00:40
Cleanup/fix error handling when no arguments are supplied to the SQLite analyzer. (check-in: 3fc566ac user: mistachkin tags: trunk)
2011-09-14
19:41
Merge latest changes from the trunk into the sessions branch. (check-in: c00e45ed user: dan tags: sessions)
19:05
Merge in the latest changes from trunk. (check-in: 2456b4d0 user: drh tags: apple-osx)
18:19
Remove 'const' from a variable that might actually be written when an OOM error occurs. Also, fix a couple MSVC/Win32 compiler warnings. (check-in: 3035dc1c user: mistachkin tags: trunk)
13:41
Remove unused parameters from internal routines in vdbesort.c. This is an additional simplification made possible by recent optimizations. (check-in: a1f3aeeb user: drh tags: trunk)
13:23
Remove code from vdbesort.c that was made unreachable by the recent sqlite3VdbeRecordUnpack() optimizations. (check-in: 607aba6c user: drh tags: trunk)
2011-09-13
19:09
Merge the latest trunk changes into the stat3-trunk branch. (check-in: 11ca4ed8 user: drh tags: stat3-trunk)
19:08
Allocate the correct size for the output buffer in fts3DoclistOrMerge(). Fix for [56be976859]. (check-in: 07788c0f user: dan tags: trunk)
2011-09-11
10:14
Cleanup pdb/ilk files generated by the MSVC makefile. (check-in: a9db247b user: mistachkin tags: trunk)
2011-09-05
20:16
Fix a minor performance regression in btreeMoveto(). (check-in: d0712dfb user: dan tags: trunk)
14:20
Refactor the sqlite3VdbeRecordUnpack() interface to better accommodate the vdbesort.c module. (check-in: f115b230 user: dan tags: trunk)
2011-09-04
01:27
Fix a compiler warning about an unused parameter in the merge-sort code. (check-in: 6b657ae7 user: drh tags: trunk)
01:11
Improve the testability of the merge-sort logic. (check-in: b5179baf user: drh tags: trunk)
2011-09-03
17:07
Performance improvements to the external merge-sorter. Keep content on an in-memory linked lists rather than an ephemeral table prior to spilling to disk. Use the external merge-sorter to implement ORDER BY and GROUP BY in addition to CREATE INDEX. (check-in: 4c43e8b2 user: drh tags: trunk)
16:42
Simplification and performance tweaks in vdbeSorterMerge(). (Closed-Leaf check-in: 99e34bdc user: drh tags: merge-sort)
14:36
Reduce the number of VdbeRecordUnpack() calls made in vdbesort.c. (check-in: 666c2c3c user: dan tags: merge-sort)
00:17
The build works again with -DSQLITE_OMIT_MERGE_SORT. The merge-sorter now avoids spilling to disk (letting the in-memory linked list grow without bound) if PRAGMA temp_store=3. (check-in: 68e26c44 user: drh tags: merge-sort)
2011-09-02
21:42
Remove some dead code. Fix a faulty assert(). Improve some variable names. (check-in: a9a64592 user: drh tags: merge-sort)
18:03
Combine two malloc calls in vdbesort.c. (check-in: cf48ad83 user: dan tags: merge-sort)
15:41
Reduce the number of malloc() calls made when creating an index on more than 2 columns. (check-in: 065b0c98 user: dan tags: merge-sort)
15:08
Remove unused local variable. (check-in: 61bda876 user: mistachkin tags: trunk)
11:45
If all data being sorted fits in memory, avoid writing any data out to temporary files in vdbesort.c. (check-in: 71075673 user: dan tags: merge-sort)
10:31
Instead of a temporary b-tree, use a linked-list and merge-sort to sort records in main memory in vdbesort.c. (check-in: 7769fb98 user: dan tags: merge-sort)
2011-09-01
16:01
Use OP_SorterOpen instead of OP_OpenEphemeral to implement GROUP BY. (check-in: ebf819aa user: drh tags: merge-sort)
15:32
Experimental code-generator changes to utilize new opcodes for sorting. (check-in: bab2e560 user: drh tags: merge-sort)
2011-08-31
23:57
Avoid using uninitialized variables after failures in the merge sort code. (check-in: 2869ed28 user: drh tags: trunk)
21:01
Formerly, we enabled fdatasync() on linux only. But now we learn that fdatasync() is not supported on Android. So we disable fdatasync() on Linux too. It can be reenabled at compile-time for those who really need it. (check-in: 70b5b309 user: drh tags: trunk)
20:47
Add the SQLITE_MAX_SCHEMA_RETRY compile-time option to the set of options understood by "PRAGMA compile_options;" and by the "sqlite_compileoption_used()" function. (check-in: 1b124af4 user: drh tags: trunk)
19:40
The server1.test script should only run if mutexes are functional. Fix to the #ifdef change of check-in [9e6a4c1473]. (check-in: 64898485 user: drh tags: trunk)
18:35
Always include the unixShm.id field, even when not debugging. (check-in: 07803476 user: drh tags: trunk)
18:04
Only create the sqlite3OSTrace global variable if compiling with SQLITE_TEST. (check-in: 9e6a4c14 user: drh tags: trunk)
17:46
Backslash escaping is not working right in tostr.awk on the latest ubuntu. The easiest fix is to simply not use any backslashes in the spaceanal.tcl script. (check-in: df550066 user: drh tags: trunk)
13:27
Add checks to make sure cells in corrupt database files do not overflow a page when doing autovacuum. Problem detected by valgrind. (check-in: d0b347b4 user: drh tags: trunk)
2011-08-30
19:52
Enable the thread test logic to work with the SQLITE_HAS_CODEC compile-time option. (check-in: 20ddfb47 user: drh tags: trunk)
01:29
Change the build process so that it does not require the unix "sort" command. This avoids confusion between ms-sort and mingw-sort on windows systems. (check-in: f1bd5bba user: drh tags: trunk)
01:23
Make sure SQLITE_FCNTL_SIZE_HINT a no-op if the chunk size is not greater than zero. (check-in: 88b763e8 user: mistachkin tags: trunk)
00:58
Fix a total unimportant file descriptor leak in lemon. This is to silence warning messages. (check-in: e95cf2c5 user: drh tags: trunk)
00:53
Fix a buffer overrun in test logic. No impact on the core SQLite. (check-in: 49cd60e3 user: drh tags: trunk)
2011-08-29
18:24
Fix a broken assert() statement in select.c. (check-in: ad78ef2b user: dan tags: trunk)
11:56
Back out [05c9832e5f6eb] since it was causing a performance regression with no obvious benefit. (check-in: 639cc85a user: drh tags: trunk)
03:08
Merge performance enhancements into trunk. (check-in: 5a00d24b user: drh tags: trunk)
02:49
About a 1% overall performance improvement by using a macro to avoid no-op calls to sqlite3MemReleaseExternal(). (Closed-Leaf check-in: ff71d20a user: drh tags: experimental)
02:16
Small performance improvement to OP_Column. (check-in: b6b73a74 user: drh tags: experimental)
2011-08-28
02:15
About a 3% improvement in the performance of OP_Column. (check-in: edff9d4a user: drh tags: experimental)
00:19
Correctly display P4_ADVANCE values on opcode traces. Mark an always-taken branch in OP_Column as such. (check-in: 087dc960 user: drh tags: experimental)
2011-08-27
18:48
Experimental changes to improve the performance of OP_Next. (check-in: 1a249845 user: dan tags: experimental)
2011-08-26
20:55
Fix several harmless compiler warnings and a documentation bug. (check-in: 5454d0fe user: drh tags: trunk)
19:20
Merge the latest trunk changes into the sessions branch. (check-in: eb036d6f user: drh tags: sessions)
19:18
Merge the latest trunk changes into the apple-osx branch. (check-in: 55af8003 user: drh tags: apple-osx)
18:28
Veryquick and min.rc tests now passing. (Closed-Leaf check-in: a7e18468 user: drh tags: stat3-3.7.2)
18:04
Merge the branch-3.7.2 changes into the stat3-3.7.2 subbranch. Also fix some test script issues. (check-in: a42db19d user: drh tags: stat3-3.7.2)
17:17
Cherrypick the recursion fix to test_vfs.c from [065e5a5ea4f82]. Also fix the nan.test module to handle upper/lower case changes in TCL. (check-in: 41b5f869 user: drh tags: branch-3.7.2)
15:51
Get stat3 working after import from trunk-based the stat3-enhancement branch. There is still a problem in the wal2 test. (check-in: 01cc4ff6 user: drh tags: stat3-3.7.2)
13:52
Merge branches branch-3.7.2 and stat3-enhancement into a new branch for testing purposes. (check-in: 0df04f92 user: drh tags: stat3-3.7.2)
13:16
Merge the stat3-enhancement branch with trunk, but keep the resulting merge in a separate branch for now. (check-in: 63f2c785 user: drh tags: stat3-trunk)
11:25
Update compiler error message regarding the choice of memory allocator defines. (check-in: 1dada515 user: mistachkin tags: trunk)
11:18
Merge Win32 native heap support into trunk. (check-in: 5238a749 user: mistachkin tags: trunk)
05:40
In the MSVC makefile, allow symbols to be enabled without NDEBUG defined. Also, for the win32lock test, make sure the database is closed prior to shutdown. (Closed-Leaf check-in: 5ed7633d user: mistachkin tags: winNativeHeap)
01:45
Disable checking the winMemData structure signature when compiled with NDEBUG. (check-in: 50edc2f9 user: mistachkin tags: winNativeHeap)
01:32
Allow the Win32 native heap flags to be overridden at compile-time. (check-in: 1c2ecec8 user: mistachkin tags: winNativeHeap)
00:34
Create a new pager type, PAGER_SORTER, for use in the external merge sort. Such pagers are always held in memory but do report when they are under memory pressure by calling pagerStress. (check-in: c71d7320 user: drh tags: trunk)
2011-08-25
20:18
Reorder some of the branches in backup.c in order to make the code easier to test. (check-in: 2c443d47 user: drh tags: trunk)
19:28
Replace an assert() that a condition may not occur in backup.c with code to handle that condition, which can occur. (check-in: 472c74b3 user: dan tags: trunk)
18:54
Fix harmless compiler warnings in test code. No changes to the core. (check-in: 16f83fec user: drh tags: trunk)
18:01
Disable external merge source when SQLITE_TEMP_STORE==3. Add documentation to the OP_OpenSorter opcode. (check-in: 5a690486 user: drh tags: trunk)
13:46
Fix the SQLITE_DISABLE_DIRSYNC compile time option. (check-in: 6deb3ea1 user: dan tags: trunk)
04:09
Add comments for the various debug levels. When debugging, disable optimizations. Prevent the win32lock tests from spinning forever. (check-in: 40185923 user: mistachkin tags: winNativeHeap)
03:38
Fix an file separator character issue with test_quota.c that was causing it to fail on windows. (check-in: ddb8d3e8 user: drh tags: trunk)
02:02
In the MSVC makefile, support several levels of debugging, each one building on the previous. Also, add comment about the SQLITE_WIN32_MALLOC_VALIDATE macro. (check-in: 4257e9b7 user: mistachkin tags: winNativeHeap)
01:58
Cherrypick the [d4f6437f8d] change so that SQLITE_FCNTL_SIZE_HINT is always honored and never undone by memory pressure on windows. (check-in: 67ff8d27 user: drh tags: trunk)
01:42
Add the sqlite3_quota_file() interface to test_quota.c. (check-in: 2b7fe8e5 user: drh tags: trunk)
01:16
Make sure that SQLITE_FCNTL_SIZE_HINT on Windows does not shrink the file. (check-in: d4f6437f user: mistachkin tags: winNativeHeap)
00:14
Add the SQLITE_EXTRA_INIT macro. (check-in: a3220f36 user: drh tags: trunk)
2011-08-24
17:42
Add error logging to native Win32 heap support. (check-in: 7fca5a28 user: mistachkin tags: winNativeHeap)
16:13
Experimental work to allow SQLite to use the native Win32 heap API. (check-in: bf3d0ab5 user: mistachkin tags: winNativeHeap)
15:18
Updates to the sqlite3_mem_methods documentation. (check-in: 988998fe user: drh tags: trunk)
15:12
Fix some harmless compiler warnings. (check-in: 46f5a68b user: drh tags: trunk)
01:25
Changes to test_quota.c to make quota groups persistent even after files are closed. Files remain a part of the quota group until they are deleted. (check-in: 04111ce9 user: drh tags: trunk)
2011-08-23
23:41
Simplifications to the SQLITE_PAGECACHE_BLOCKALLOC logic. Reduce the number of difficult-to-reach branches. (check-in: d5d835fe user: drh tags: trunk)
20:11
If the application-defined openDirectory() function returns SQLITE_CANTOPEN, then silently ignore the error. This allows the chromium sandbox to disallow opening of directories without causing errors. (check-in: 880b5115 user: drh tags: trunk)
19:46
Change the way the "crash" VFS (test6.c) handles SQLITE_FCNTL_SIZE_HINT. (check-in: 40dd8a60 user: dan tags: trunk)
18:06
Merge latest trunk changes into the apple-osx branch. (check-in: c5f7977b user: dan tags: apple-osx)
16:41
Have the "crash" VFS used by the tcl tests (test6.c) handle SQLITE_FCNTL_SIZE_HINT internally, instead of passing it directly through to the underlying VFS. This is important if the crash VFS is simulating non-default device characteristics such as SQLITE_DEVCAP_SEQUENTIAL or ATOMIC. (check-in: fac8bc8f user: dan tags: trunk)
13:27
Ifdef out routines in pcache1.c that are used only when SQLITE_PAGECACHE_BLOCKALLOC is defined. (check-in: 0da292da user: drh tags: trunk)
12:50
Merge the PAGECACHE_BLOCKALLOC changes into trunk. (check-in: 768c1846 user: drh tags: trunk)
11:47
When copying a rollback mode database over a WAL database using the backup API, leave the destination database in WAL mode (instead of switching it to rollback mode). Fix for [af95b8c609]. (check-in: 35e6ac18 user: dan tags: trunk)
05:10
Change to test instrumentation of os_unix.c: Regard IO errors that occur within SQLITE_FCNTL_SIZE_HINT requests as benign. (This check-in was intended for trunk and went onto the branch accidentally.) (Closed-Leaf check-in: ca47da2a user: dan tags: pager-blockalloc)
00:01
Remove a branch that is always true. (check-in: a6568192 user: drh tags: trunk)
2011-08-22
20:33
Remove an unreachable branch in the FK code. (check-in: 6c227cc8 user: drh tags: trunk)
14:55
Modify test cases so that veryquick.test passes with PAGECACHE_BLOCKALLOC defined. (check-in: c6100070 user: dan tags: pager-blockalloc)
09:54
Fix for [b1d3a2e531]. (check-in: 3f3acee4 user: dan tags: trunk)
2011-08-19
18:15
Experimental change: If SQLITE_PAGECACHE_BLOCKALLOC is defined, instead of allocating pages one at a time, allocate blocks of between 15 and 63 pages in a single allocation. (check-in: 63597097 user: dan tags: pager-blockalloc)
14:54
When retrying a write() after an EINTR error on unix, be sure to also rerun the previous lseek(). Ticket [e59bdf6116036a] (check-in: 21452f3a user: drh tags: trunk)
2011-08-18
17:47
Ensure that the Tcl "db onecolumn" command returns an empty string if the SELECT statement returns zero rows. (check-in: 928bcaf0 user: dan tags: trunk)
13:45
Fix the stat3 analysis loader to be compatible with sqlite3_db_status(). Also fix some OOM issues with the stat3 analysis loader. (Closed-Leaf check-in: eaf447ea user: drh tags: stat3-enhancement)