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35 check-ins using file src/vdbe.h version c1eeedac

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