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20 most recent timeline items

2014-09-01
17:36
[b1c0f0bc1b] Leaf: Add support for using separate worker threads to speed large sorts. The SQLITE_MAX_WORKER_THREADS and SQLITE_DEFAULT_WORKER_THREADS compile-time options and the SQLITE_LIMIT_WORKER_THREADS argument to sqlite3_limit() and the "PRAGMA threads=N" pragma are added. (user: drh, tags: trunk)
13:37
[b0f6b91f36] Attempt to make the xDelete method of the unix VFS more robust on VxWorks. (user: drh, tags: trunk)
13:29
[839c7996ee] Micro-optimizations in sqlite3BtreeNext() and sqlite3BtreePrevious(). (user: drh, tags: trunk)
01:16
[3ef3246120] Fix harmless compiler warnings for MSVC. (user: mistachkin, tags: trunk)
01:15
[51f33cf129] Leaf: Merge updates from trunk. (user: mistachkin, tags: asciiMode)
2014-08-30
15:49
[f61db04be4] In the command-line shell, added options --lookaside, --pagecache, and --scratch used to configure auxiliary memories. (user: drh, tags: trunk)
2014-08-29
19:06
[33fa041049] Closed-Leaf: Disable worker threads when SQLITE_THREADSAFE=0. Set the default compile-time maximum number of worker threads to 8 and honor the SQLITE_DEFAULT_WORKER_THREADS compile-time constant (which defaults to 0). (user: drh, tags: threads)
18:06
[2ab4b5adc6] Fix the speedtest1.c test program to set the worker thread count using the threads pragma. (user: drh, tags: threads)
16:20
[1b598c68f3] Add SQLITE_LIMIT_WORKER_THREADS for controlling the maximum number of worker threads. (user: drh, tags: threads)
14:40
[35c44a3c73] Merge recent performance enhancements from trunk onto the threads branch. (user: drh, tags: threads)
14:20
[2a74129a21] Note a fault after all, rather a testing mistake. Move this change back to trunk. Was: Avoid an unnecessary OP_Move operation for expression subqueries. (user: drh, tags: trunk)
14:04 • Edit 462f42af52f146fd: Move to branch mistake.. Edit check-in comment.. (user: drh)
12:32 • Edit 8c57bcc327d3d456: Marked "Closed". (user: drh)
12:29
[462f42af52] Closed-Leaf: Contains a fault. Was: Avoid an unnecessary OP_Move operation for expression subqueries. (user: drh, tags: mistake)
11:24
[8c57bcc327] Closed-Leaf: Add the sqlite3VdbeChangeDest() routine that can be used to eliminate OP_Move opcodes. (user: drh, tags: experimental)
2014-08-28
19:38
[fdd478bb11] Improved WHERETRACE messages for the estimated output row reductions from range scans. (user: drh, tags: trunk)
17:30
[a9daf3ac44] Fix a problem causing an inaccurate stat4-based estimate for the number of rows visited by a range scan. (user: drh, tags: trunk)
17:20
[6ba609522e] Closed-Leaf: Add a testcase() macro to help verfity the row estimation logic. (user: drh, tags: stat4-experimental)
16:01
[052d89b554] Fix a problem causing an inaccurate stat4-based estimate for the number of rows visited by a range scan. (user: dan, tags: stat4-experimental)
13:42
[c931ca2b77] Fix a formatting error ("%d" needed in place of "%g") on a WHERETRACE macro inside of the query planner. This fix applies to debugging logic only. (user: drh, tags: trunk)