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SQLite training in Houston TX on 2019-11-05 (details)
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17 check-ins using file src/select.c version 668c6865

2016-12-01
18:57
Performance improvement for GLOB and LIKE matching for patterns with two or more multi-character wildcards ("*" or "%"). check-in: 2df0ebf9 user: drh tags: trunk
18:49
Faster version of patternCompare() that uses new return values rather than an extra parameter to communicate wildcard information back up to parent searches. Closed-Leaf check-in: a1e2b6ce user: drh tags: pattern-compare-optimization
17:34
Modify the patternCompare() function (used for GLOB, LIKE) to better handle patterns containing multiple wildcard characters ("*", "%"). check-in: c5e5614d user: dan tags: pattern-compare-optimization
2016-11-30
16:54
Add the remember(V,PTR) extension function which copies an SQL value into an application variable. check-in: d2d30914 user: drh tags: trunk
16:39
Merge all the latest changes from trunk. check-in: 7ca58a07 user: drh tags: est_count_pragma
14:47
Fix then handling of the (oversized) integer literal -0x8000000000000000. check-in: 3816bb41 user: drh tags: trunk
05:08
Change the OP_DecrJumpZero opcode back to its old behavior of always decrementing, except top the decrementing when it reaches the largest negative number. check-in: 9d0d8c2e user: drh tags: trunk
04:07
More improvements to boundary cases in the date/time functions, flowing out of branch coverage testing. check-in: 1218005a user: drh tags: trunk
01:05
Prevent a warning about integer overflow when using a very large negative LIMIT. check-in: 96106d56 user: drh tags: trunk
00:48
Further changes to the date/time functions to suppress harmless signed integer overflow warnings that could have occurred when doing out-of-range date calculations which, according to the docs, give undefined results. check-in: dc453b34 user: drh tags: trunk
2016-11-29
20:39
The documentation says that the built-in date-time functions give undefined results for dates before 0000-01-01 and after 9999-12-31. Change the actually implementation so that the answer given is really NULL. This also avoids unnecessary hand-wringing over an signed integer overflow that might otherwise occur when processing out-of-bound dates. check-in: d410a839 user: drh tags: trunk
2016-11-28
21:22
Fix broken hyperlinks to the sqlite3_snapshot objection definition in the documentation. No changes to code. check-in: 9021f687 user: drh tags: trunk
14:52
Simplify some code in fts5_expr.c. Add some extra test cases for the same. check-in: 7cc2d60d user: dan tags: trunk
2016-11-26
20:44
Merge all recent trunk changes, and especially the new sqlite3_snapshot_recover() interface. check-in: 41a3af54 user: drh tags: apple-osx
19:44
Add the sqlite3_snapshot_recover() interface and related functionality. check-in: b70c85ce user: drh tags: trunk
2016-11-25
20:20
Clarification of the behavior of sqlite3_stmt_readonly() on BEGIN IMMEDIATE statements. The is comment changes only - no changes to code. check-in: a4205a83 user: drh tags: trunk
19:32
Remove the OP_RowKey opcode. Use OP_RowData in its place. check-in: 6ac7b07a user: drh tags: trunk