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This Day In History For 2018-10-15

1 Year Ago (more context)

2017-10-15
22:16
In the query planner, do not consider index X to be a proper subset of index Y if X is a covering index but Y is not. (check-in: ee31c04353 user: drh tags: trunk)

2 Years Ago (more context)

2016-10-15
18:37
Add documentation for the OP_SorterInsert opcode, formerly omitted by mistake. No changes to code. (check-in: 16d88a9077 user: drh tags: trunk)
08:56
Add test case to hook.test. No changes to non-test code. (check-in: 2674d779f5 user: dan tags: trunk)

3 Years Ago (more context)

2015-10-15
21:30
Performance optimization for the OP_Column opcode. (check-in: 076be5474d user: drh tags: trunk)
21:13
Merge updates from trunk. (Leaf check-in: 4049368008 user: mistachkin tags: mutexInitIsInitReCheck)
21:12
Merge updates from trunk. (Leaf check-in: a447cf90dd user: mistachkin tags: mutexInitSimpleCmpSwap)
20:17
Experiments with an OP_Unpack opcode that extracts multiple columns from a record without caching. (Leaf check-in: 39ae92f5c6 user: drh tags: unpack-opcode)
19:21
Enhance the use of the column cache for UPDATE statements, making them more efficient for the case where a column is modified to be an expression of other unmodified columns. (check-in: 871e091df6 user: drh tags: trunk)
18:04
Add the OP_IntCopy opcode - an optimized version of OP_SCopy that only works for integer values. (check-in: 3a2f73a492 user: drh tags: trunk)
17:31
Optimization to the out2Prerelease() helper routine in the VDBE engine. (check-in: 79298fe8c4 user: drh tags: trunk)
17:21
Remove a superfluous conditional from the memory allocation initialization. (check-in: 9ccf8f8d35 user: drh tags: trunk)
16:20
Performance optimizations to the sqlite3MallocSize() by requiring the argument to always be non-NULL. (check-in: cb65989b07 user: drh tags: trunk)
15:28
Change sqlite3StatusSet() into sqlite3StatusHighwater() so that only the highwater mark is recorded. This gives a small size reduction and performance improvement. (check-in: 6422d223dd user: drh tags: trunk)
12:06
Make sure sqlite.h is not #included by itself. (check-in: a61880c223 user: drh tags: trunk)
07:44
Merge in the 3.9.0 changes from trunk. (check-in: 5c3a2a6ed6 user: drh tags: begin-concurrent)

4 Years Ago (more context)

2014-10-15
20:02
Fix a problem causing sqlite3changeset_concat() to fail to detect attempts to concatenate patchsets which changesets. (check-in: 236704a9d1 user: dan tags: sessions)
19:37
Merge latest trunk changes with this branch. (check-in: 1b2824f1d1 user: dan tags: sessions)
15:28
Update releasetest.tcl so that x86-64 runs a superset of the x86 tests. (check-in: 3c1e70f4d5 user: dan tags: trunk)
14:45
Fix a problem causing lock5.test to fail in mmap-mode. (check-in: b3e7b446bd user: dan tags: trunk)
11:55
Add a four-byte prefix to the BtShared.pTmpSpace buffer to avoid reading before the beginning of an allocation. (check-in: 9386bfca12 user: drh tags: trunk)
11:31
Rearrange an expression in vdbemem.c to avoid a (harmless) reference to a possibly unitialized variable. (check-in: 4a7b3fa049 user: dan tags: trunk)

5 Years Ago (more context)

2013-10-15
19:06
Add the "languageid" hidden column to fts4aux. (check-in: 891df358e5 user: dan tags: trunk)
15:35
Changes to test code to make sure no server threads are left running after server1.test finishes. (check-in: 1086e00bca user: dan tags: trunk)
14:29
Fix an 8-byte alignment problem on the "crash test" harness (test code, not in the core) that causes problems on Sparc. (check-in: bcbc65030f user: drh tags: trunk)
14:10
Merge the latest trunk changes into the sessions branch. This merge should fix the build for WinRT. (check-in: e111e4edf9 user: drh tags: sessions)
11:58
Fix harmless macro redefinition warnings in the totype extension. (check-in: c9c1f8d670 user: drh tags: trunk)
10:43
Fix harmless macro redefinition warnings in the totype extension. (Closed-Leaf check-in: a38adeb7ff user: mistachkin tags: noWarnings)

10 Years Ago (more context)

2008-10-15
19:03
Fix a naming problem when SQLITE_MUTEX_NOOP is used. (CVS 5827) (check-in: 35ce71c6f1 user: drh tags: trunk)
16:02
Do not open and sync the directory in unixDelete() if the SQLITE_DISABLE_DIRSYNC option is defined. (CVS 5826) (check-in: 8ef141644e user: danielk1977 tags: trunk)
11:59
Version 3.6.4 (CVS 5825) (check-in: cd73cffab3 user: drh tags: trunk, release)
11:43
After running speed1.test and speed1p.test, reset the size of the lookaside buffer. Otherwise, subsequent runs of malloc5.test may report an error. Changes to test code only. (CVS 5824) (check-in: 9283478e69 user: danielk1977 tags: trunk)