SQLite
Timeline
Not logged in

30 ancestors of [3ef3246120]


2014-09-01
01:16
[3ef3246120] Leaf: Fix harmless compiler warnings for MSVC. (user: mistachkin, tags: trunk)

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
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)
12:29
[462f42af52] Closed-Leaf: Contains a fault. Was: Avoid an unnecessary OP_Move operation for expression subqueries. (user: drh, tags: mistake)
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)
2014-08-27
23:18
[bdb6e4978d] Refactor the sqlite3PcacheFetch() routine into three separate routines, which are significantly faster overall and about 100 bytes smaller in size as well. (user: drh, tags: trunk)
17:53
[029a6dc744] Add a VDBE synopsis comment for clarification. (user: mistachkin, tags: trunk)
17:48
[d8b1c43361] Add a missing ticket number to a comment in index7.test. (user: dan, tags: trunk)
17:37
[fcebca166f] When determining whether or not a partial index is usable, do not assume that the cursor number assigned to each table in the query is the same as its index in the FROM clause. Fix for ticket [98d973b8f5]. (user: dan, tags: trunk)
14:14
[6c1ee3e388] In the sqlite3_context object, keep a pointer to the result value rather than storing the result value in the sqlite3_context object and using memcpy() to move the value back into its register after the function returns. This runs faster and saves over 500 bytes of code space. (user: drh, tags: trunk)
03:28
[1624916c6e] Factor out the exception paths from sqlite3ValueToText() into a separate function so that the main routine is much faster for the common case of no required type or encoding conversions. (user: drh, tags: trunk)
00:50
[f94cacc393] Performance enhancement in sqlite3VdbeMemNulTerminate(). (user: drh, tags: trunk)
2014-08-26
15:06
[f1f94a971e] Change the page cache so that a new sqlite3_pcache object is allocated as soon as the page cache is opened, not delayed until the first fetch request. This give a noticable performance boost. The interface between pager and the page cache has changed slightly, which might break ZIPVFS. (user: drh, tags: trunk)
2014-08-25
22:37
[af364cce9d] Add an assert() and five testcase() macros to the OP_Cast opcode implementation to help verify that it is fully tested. (user: drh, tags: trunk)
21:11
[1ad70ec550] Minor changes to the CAST logic to make it more testable. (user: drh, tags: trunk)
20:21
[42505e5a81] Test cases added for using unary "+" and CAST operators on the RHS of range constraints and verifying that STAT3/4 can use those constraints. (user: drh, tags: trunk)
20:11
[91d8a8d0b7] Allow CAST expressions and unary "+" operators to be used in the DEFAULT argument of an ALTER TABLE ADD COLUMN and to be understand on the RHS of range constraints interpreted by STAT3/4. This involves a rewrite of the implementation of the CAST operator. (user: drh, tags: trunk)
18:29
[e06dc6f0c3] In cases where stat4 data is available but cannot be used because the rhs of a range constraint is too complex a expression, fall back to using the default estimates for number of rows scanned. (user: dan, tags: trunk)
11:33
[54164ce47c] Remove the pager_lookup() function since it is redundant with sqlite3PagerLookup(). (user: drh, tags: trunk)
11:20
[3ca5846da7] Change the name of the VdbeMemRelease() macro to VdbeMemReleaseExtern() to more accurately reflect what it does. Performance enhancement to the sqlite3VdbeMemRelease() function. (user: drh, tags: trunk)
2014-08-24
02:53
[0c7e1b875a] The sqlite3VdbeChangeEncoding() routine goes about 3x faster if the sqlite3VdbeMemTranslate() subroutine is not inlined. (user: drh, tags: trunk)
01:32
[c63311e2f3] Patch the sqlite3PagerWrite() method in the Pager to run a bit faster. (user: drh, tags: trunk)
2014-08-23
23:15
[0371cc3bb0] Faster implementation of pcache1Fetch() (user: drh, tags: trunk)
20:25
[bd41d394d4] Faster implementation of the sqlite3ApiExit() routine. (user: drh, tags: trunk)
19:42
[6da6f46d0c] Another memory allocator performance optimization. (user: drh, tags: trunk)
19:08
[45abd5c0ba] Fix a variable-declaration after code problem in btree.c. Harmless in GCC and CLANG but unacceptable for MSVC. (user: drh, tags: trunk)
19:04
[f83daa16f6] Changes to sqlite3ScratchMalloc() that make the entire memory allocation interface a little faster and about 100 bytes smaller. (user: drh, tags: trunk)