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Code Activity
7,319 Commits 1,608 Branches 185 Tags
b057e56f226e89b41455f07fd1da974c3b6ebd16
Commit Graph

442 Commits

Author SHA1 Message Date
danielk1977
e501b89ada Rename DbSchema to "Schema" and SqliteTsd to "ThreadData". (CVS 2893) 
FossilOrigin-Name: 82b81f69c78cb3f54634d9aea4f6a838474dc5e5
 2006-01-09 06:29:47 +00:00
danielk1977
c00da10565 In shared-cache mode, lock all required tables before beginning to execute the body of the statement program. (CVS 2881) 
FossilOrigin-Name: 23b587b05b89727248805e6d9e5141e018cf2152
 2006-01-07 13:21:04 +00:00
danielk1977
da18423620 Add the shared schema/pager modifications. Very few tests so far. (CVS 2859) 
FossilOrigin-Name: deeda0dc06c1595aedd8d06a0c4e88a8abf78cf7
 2006-01-05 11:34:32 +00:00
drh
0b2f3160d6 Bug fixes and additional testing of descending indices. (CVS 2841) 
FossilOrigin-Name: 5638a11ed5618dd833d3daffc1715951091d72b2
 2005-12-21 18:36:45 +00:00
drh
85eeb692f3 Progress toward decending indices. (CVS 2839) 
FossilOrigin-Name: 112a34b8dcceb39540cb0cd629e264a867400bfb
 2005-12-21 03:16:42 +00:00
danielk1977
00fd957b78 Add some tests for malloc() failure within the column_name() and column_decl() APIs. (CVS 2805) 
FossilOrigin-Name: 78f10ca0a6a02e9e8e6811489841a19e213f3afb
 2005-12-07 06:27:43 +00:00
danielk1977
261919cc16 Some elements of the new malloc() failure handling. Not all cases work properly yet. Also, library is not threadsafe if malloc() fails right now. (CVS 2800) 
FossilOrigin-Name: e1606658f1b4530e3001db4779b5669c8d13c853
 2005-12-06 12:52:59 +00:00
drh
9a5f7474e3 Disable the OR-clause optimization if it does not result in an index being 
used that would not have been used otherwise.  In other words, do not
convert OR clauses into an IN statement if it does not help the optimizer. (CVS 2789)

FossilOrigin-Name: 7e7cfce0f8ed2a6e04747736a2c68484f447cdfb
 2005-11-26 14:24:40 +00:00
drh
54a167d1fe Make sure left joins still work even when the OR clause optimization fires. 
Ticket #1537. (CVS 2788)

FossilOrigin-Name: cbbeb9de0019a0b81318158711590078fcb7e98a
 2005-11-26 14:08:07 +00:00
drh
32daab6cb0 Less verbose output when EXPLAIN QUERY PLAN identifies use of the primary key. (CVS 2772) 
FossilOrigin-Name: 5045f09933f57e4ae897969710b19d09b7af6022
 2005-11-21 12:48:24 +00:00
drh
36d649303f The EXPLAIN QUERY PLAN now identifies when tables use the integer primary key. (CVS 2771) 
FossilOrigin-Name: 80721e2c9033abb2e9eed32892c4e486c293e1fa
 2005-11-21 12:46:27 +00:00
drh
8a51256c0c Create separate affinities for INTEGER and REAL. (CVS 2766) 
FossilOrigin-Name: ce06c123d0c5663dbaf263c2e0aaf5d9cdeb2ccd
 2005-11-14 22:29:05 +00:00
drh
b37df7b928 Attempt to fix the SQLite core so that no floating point operations are used 
anywhere if SQLITE_OMIT_FLOATING_POINT is defined at compile-time.  This
is useful to people who use SQLite on embedded processors that lack
floating point support. (CVS 2749)

FossilOrigin-Name: a0bdb584680ce6400d9e8c57db9d91197cc7b776
 2005-10-13 02:09:49 +00:00
drh
d654be803f Code cleanup and simplification. Three new Mem opcodes added. 
The sqlite3VdbeJumpHere function added. (CVS 2730)

FossilOrigin-Name: 2471957feee57538e5e1e50a704a337f0927d10e
 2005-09-20 17:42:23 +00:00
drh
b6fb62d9b4 Update comments in where.c. No code changes. (CVS 2727) 
FossilOrigin-Name: bb84d27eda64479d65b13fbbcaeef6a00da4d103
 2005-09-20 08:47:20 +00:00
drh
22d6a53a77 ON-clause terms in a LEFT JOIN that restrict only the left table, should not 
really restrict the left table but instead rows that fail to meet the condition
to be joined with NULL rows from the right table. (CVS 2725)

FossilOrigin-Name: ea10f9785e3c5248dafcc297f3a2c5465b6e0dba
 2005-09-19 21:05:48 +00:00
drh
549c8b68c7 The sqlite3_query_plan debugging variable now only appears with SQLITE_TEST=1. (CVS 2721) 
FossilOrigin-Name: 41e226d2ff5c0021fd07388da13f6d750fac508b
 2005-09-19 13:15:23 +00:00
drh
48083cee4c Change some debugging #defines in order to get SSE working again after 
recent upgrades. (CVS 2719)

FossilOrigin-Name: 86eb7d8363559c94bfcd7e48ff6270025ecacb7b
 2005-09-19 12:37:27 +00:00
drh
36da52425b Bug fix in the ORDER BY optimizer. Ticket #1435. (CVS 2707) 
FossilOrigin-Name: 553b7ba8f8ae4cb865494f2d301690149d7edb9f
 2005-09-17 13:29:23 +00:00
drh
f5b1138bae Make sure dependencies on the right-hand side of IN operators are checked 
correctly.  Ticket #1433. (CVS 2706)

FossilOrigin-Name: 21740794ab81924442f358a6adbbe6d5590cf58d
 2005-09-17 13:07:13 +00:00
drh
53f733c7ae Fix a whole host of newly discovered memory leaks the occur after a 
failure of realloc(). (CVS 2696)

FossilOrigin-Name: 4686d649756a0aa301ade901ac49c89a976c5402
 2005-09-16 02:38:09 +00:00
drh
ecc9242f6f Add the experimental EXPLAIN QUERY PLAN diagnostic capability. (CVS 2685) 
FossilOrigin-Name: 986efb7b12643800805ad4b1f1e90e30fcf6d38a
 2005-09-10 16:46:12 +00:00
drh
3dec223ca0 Use of the CROSS keyword in a join prevents table reordering. Ticket #1414. (CVS 2683) 
FossilOrigin-Name: 415b8b24629aa12756d8285c094b5f85d8a8e532
 2005-09-10 15:28:09 +00:00
drh
4f26bb62a8 Remove a few unused variables detected by Borland C. Ticket #1412. (CVS 2675) 
FossilOrigin-Name: cdfe372a958fb446485913e860d52b87fffd34e4
 2005-09-08 14:17:20 +00:00
drh
a21c8495f9 Fix over-aggressive optimization of ORDER BY as reported on the mailing list. (CVS 2655) 
FossilOrigin-Name: efbb4bc83cd86b6a26d58c5818c58c2e3edaab18
 2005-09-01 17:47:51 +00:00
drh
b46b57745d Initialize a local variable to avoid a nuisance compiler warning. 
Ticket #1394. (CVS 2638)

FossilOrigin-Name: 9b914901a18f8ea39c39a51509c0b3b862c13d6a
 2005-08-29 16:40:52 +00:00
drh
d64fe2f374 The LIKE optimization does the right thing when collating sequences are 
present.  LIKE expressions where the left-hand side has COLLATE NOCASE
are optimized in the default case. (CVS 2637)

FossilOrigin-Name: ef84ff795c85e9d28f1cac84ff42d8d4ef84cfc4
 2005-08-28 17:00:23 +00:00
drh
9eb2028fbc After calling realloc() on an array to resize it, be sure not to use pointers 
into the old array.  Ticket #1376. (CVS 2617)

FossilOrigin-Name: 9f9a257123274779150cbc290b9f86a09b3b2c03
 2005-08-24 03:52:18 +00:00
drh
0bbaa1ba9a Increase test coverage of alter.c to 100%. Fix bugs found in the process. (CVS 2603) 
FossilOrigin-Name: b550d04d43a92f33a01438ae03df14678db3cdee
 2005-08-19 19:14:12 +00:00
drh
8b3d990b71 Bring testing coverage of the analyze.c file up to 100%. Bugs found and 
fixed in the process. (CVS 2599)

FossilOrigin-Name: 2fe0ac4fa4d5911e266979021fa7e413d96c558d
 2005-08-19 00:14:42 +00:00
drh
55ef4d9758 The case_sensitive_like pragma added. 
Test cases added for the LIKE optimization. (CVS 2592)

FossilOrigin-Name: 72ee21c05e618b6f46f5460f8c85779c72fe32d7
 2005-08-14 01:20:37 +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
d2687b7731 Optimize LIKE and GLOB operators in the WHERE clause. Code passes all 
regression tests but still needs additional tests. (CVS 2581)

FossilOrigin-Name: 3edbe8d6217fd1180883e6b9f1e5b9011a39f80d
 2005-08-12 22:56:09 +00:00
drh
45b1ee44a4 Minor refactoring of the new optimizer code. (CVS 2576) 
FossilOrigin-Name: 868322f7b7176486dfb4b54d99cf6662b79e639d
 2005-08-02 17:48:22 +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
drh
3adc9cedb0 The new optimizer now passes all regression tests. (CVS 2566) 
FossilOrigin-Name: a21212843359fb9fdbd60799ae50ad3566f4399a
 2005-07-28 16:51:51 +00:00
drh
28c4cf42da More work on the new optimizer. Fewer tests fail now. (CVS 2565) 
FossilOrigin-Name: ee3a08e353f563c36e904479393fcb56f96ee975
 2005-07-27 20:41:43 +00:00
drh
51147baa6d A new optimizer that breaks a lot of tests. But none of them critically, I 
think.  Nevertheless, there is a lot of work ahead to stabilize the code. (CVS 2564)

FossilOrigin-Name: 86ce56ccea8297b1fba2b9ee53b5f1a3f228662f
 2005-07-23 22:59:55 +00:00
drh
e23399fc9c Begin adding code to support multiple IN constraints on the same index. (CVS 2557) 
FossilOrigin-Name: 103f8ccb9013689a480766ebffbf570d4aa8bac5
 2005-07-22 00:31:39 +00:00
drh
29dda4ae65 Split the OP_Integer opcode into OP_Integer and OP_Int64. This allows 
comments to be added to OP_Integer.  Cleanup in the optimizer.  Allow
terms of the FROM clause to be reordered automatically. (CVS 2556)

FossilOrigin-Name: e2f822ac82d0a5a59de0b63cce65d4fd6c178ff1
 2005-07-21 18:23:20 +00:00
drh
7ec764a29e Add comments to test cases. Improvements to the query plan test variable. (CVS 2555) 
FossilOrigin-Name: ef3a157f469d72cbd2f713f997598ddf47f340d2
 2005-07-21 03:48:20 +00:00
drh
fe05af87f8 In where.c, split out the code that selects an index into a separate 
subroutine. (CVS 2554)

FossilOrigin-Name: c30cbba9ead1b4d07f225b1e8a65d5d5230ea45d
 2005-07-21 03:14:59 +00:00
drh
e8b9727835 More refactoring in where.c. (CVS 2552) 
FossilOrigin-Name: a35bd50af8961133adc66e40c38402e81a02bb56
 2005-07-19 22:22:12 +00:00
drh
0fcef5e110 Refactoring of the query optimizer in advance of adding better optimization. (CVS 2551) 
FossilOrigin-Name: 57c6bd3760163c174be4a2ece58f414e82b55938
 2005-07-19 17:38:22 +00:00
drh
0aa74edd72 Allow an unlimited number of terms in the WHERE clause. The old limit was 100. (CVS 2550) 
FossilOrigin-Name: ca69f36832d57775e73ac5cdbe0a32d7b759432b
 2005-07-16 13:33:20 +00:00
drh
9042f395cc Fix bugs in the new query plan instrumention logic. (CVS 2549) 
FossilOrigin-Name: 578490c91331a386f84652db0b3bfd74c82046e1
 2005-07-15 23:24:23 +00:00
drh
84bfda41db Add test instrumentation that will be needed during the development of 
forthcoming optimizer enhancements. (CVS 2548)

FossilOrigin-Name: dfd5fd77b0764853f847eeee3c1fe047d60fee7e
 2005-07-15 13:05:21 +00:00