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15 Commits

Author SHA1 Message Date
drh
9373b01882 Restrict the RANDOM() function to have zero arguments. Ticket #3627. (CVS 6229) 
FossilOrigin-Name: b8b546b6ed799dc1621ef7b06273249af1042fb2
 2009-02-02 01:50:39 +00:00
drh
d1d384888b Add the experimental sqlite3_stmt_status() interface. (CVS 5781) 
FossilOrigin-Name: de473efb35ffdf9a8222a70a84dfd7d3198c87c1
 2008-10-07 23:46:38 +00:00
danielk1977
284f4aca32 Fix compilation/testing with OMIT_SUBQUERY defined. Ticket #2828. (CVS 4603) 
FossilOrigin-Name: 0b34a18651764e650faba983be8593992ab2f4a9
 2007-12-10 05:03:46 +00:00
danielk1977
4152e677b8 Fixes for compilation/testing when the various OMIT macros are defined. (CVS 4423) 
FossilOrigin-Name: c8405b15c074c94dab5e33272cf1471f458d11df
 2007-09-12 17:01:45 +00:00
drh
3e35580779 Disable the OR optimization if it would conflict with column 
affinity coercions.  Ticket #2249.  Additional cleanup and testing
of the OR optimization. (CVS 3658)

FossilOrigin-Name: 908daaa9ab86e0bd1da6d0807d6aaba240c3cee0
 2007-02-23 23:13:33 +00:00
drh
382765866b Fix a bug in the optimizer that was causing it to miss an OR optimization 
opportunity. (CVS 3502)

FossilOrigin-Name: 9bf153b54c6e9ba16914dedd9e2949f32d7550ea
 2006-11-06 15:10:05 +00:00
drh
ffe0f8901e Correctly handle multi-column indices where multiple columns are constrained 
by IN operators with subqueries on the right-hand side.  Ticket #1807. (CVS 3184)

FossilOrigin-Name: b16541ba5e6a9514f9f317888117c68b6818f9cb
 2006-05-11 13:26:25 +00:00
danielk1977
3bdca9c9a5 Test suite fixes for builds that define OMIT symbols. (CVS 2962) 
FossilOrigin-Name: 3a54a33dcb7e765ee3773397407e8929a8cfe1a9
 2006-01-17 09:35:01 +00:00
danielk1977
ff890793fc Test file fixes for libaries compiled with various SQLITE_OMIT_ macros. (CVS 2961) 
FossilOrigin-Name: c058f483a52c8043178b6329aa5e58bedf0c8277
 2006-01-16 16:24:25 +00:00
danielk1977
1576cd9251 Fixes for OMIT_SUBQUERY builds: Disable where clause OR->IN optimization. Include EXISTS keyword (for new CREATE TABLE syntax). Test file fixes. (CVS 2943) 
FossilOrigin-Name: 8e79a0c24a03ccf960d6ccfb7c6b9b0f7c614e9b
 2006-01-14 08:02:28 +00:00
drh
8718f52624 Disable an overzealous optimization the omitted sorting on a join if the first 
table gave a unique result.  The sort can only be omitted if all tables in
the join are unique.  Ticket #1358. (CVS 2589)

FossilOrigin-Name: 4f07661279fb11a06b3ddffeda672f077c0d306a
 2005-08-13 16:13:04 +00:00
drh
943af3cda1 Fix problems caused by over-agressive optimization of ORDER BY in joins. 
Lots more testing needed. (CVS 2571)

FossilOrigin-Name: 1a4e526d46280970b43505a5c8a4090767c63043
 2005-07-29 19:43:58 +00:00
drh
6c30be8e51 Optimizer now converts OR-connected WHERE-clause terms into an IN operator so 
that they can be used with indices.  There are known problems with the
ORDER BY optimization in this and in several prior check-ins.  This
check-in is not recommended for production use. (CVS 2569)

FossilOrigin-Name: d23c8bf81e508722e92ff1b9c8bc98dc026a31f2
 2005-07-29 15:10:17 +00:00
drh
ed37800693 The BETWEEN operator in a WHERE clause is now able to use indices. (CVS 2568) 
FossilOrigin-Name: cdf8c9584b945212e065e044df801c207aedb675
 2005-07-28 23:12:08 +00:00
drh
a611040eea Test cases and tuning of the new optimizer code. (CVS 2567) 
FossilOrigin-Name: 4b02703dec71aa78e5f8d8cab5b950966a4c6abc
 2005-07-28 20:51:19 +00:00