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Code Activity
18,808 Commits 1,608 Branches 185 Tags
43c4ac8bfecba96e4db6d075c5fa743a4fe25ea5
Commit Graph

1008 Commits

Author SHA1 Message Date
drh
cdd536f0fd Much faster sorting when there are a large number of columns in the 
result set. (CVS 3141)

FossilOrigin-Name: 6b3717aeb4ac45a433f2a30bdd0264ed728676e1
 2006-03-17 00:04:03 +00:00
drh
643054c18b Correct names returned from a query against a view. Ticket #1709, #1688, #1711. (CVS 3128) 
FossilOrigin-Name: 36830fafa405c9eae4795045efc6843394c67555
 2006-03-09 17:28:12 +00:00
drh
43617e9ab9 Code changes resulting from Coverity analysis. 
http://scan.coverity.com/  Found 1 potential segfault in sqlite3_mprintf().
Also 2 failures to fclose() following a malloc() failure.  And lots of
cases where unnecessary conditionals could be removed from the code. (CVS 3126)

FossilOrigin-Name: e510e6dd9d6261f33b853af3b32d155b9d6b63b3
 2006-03-06 20:55:46 +00:00
drh
74161705f1 Remove unused parameters on internal APIs. Suppress warnings from 
CodeWarrior. (CVS 3110)

FossilOrigin-Name: 4b22e4b847f8d5c29830baea541194ef3a0c4811
 2006-02-24 02:53:49 +00:00
danielk1977
1787ccabed Fix the origin APIs so that they correctly handle views and subqueries that cannot be flattened. (CVS 3072) 
FossilOrigin-Name: 5e8611e13de08d704cea6c9c4466c3af842a7a1a
 2006-02-10 07:07:14 +00:00
danielk1977
4b1ae99d01 Add a symbol P3_TRANSIENT to pass to VdbeSetColName() to make it copy the string parameter up to the first 0 byte. (CVS 3070) 
FossilOrigin-Name: 6ebb8f9bb2f6a3f7fde19267727aa4e2d878a416
 2006-02-10 03:06:10 +00:00
danielk1977
955de52c9c Add the column_origin_name() etc. APIs. (CVS 3069) 
FossilOrigin-Name: 82f502cdc1fead3bf7e3190d5c9db3aee6919ed4
 2006-02-10 02:27:42 +00:00
danielk1977
f011300000 Rename some variables to avoid hiding others. Also add "static" to two function signatures that were missing it. (CVS 3024) 
FossilOrigin-Name: d86f18a4277ebffb644ba2e574e0b697c8bbf8e4
 2006-01-24 12:09:17 +00:00
drh
a86a5b6c7e Bug fix in cases where a compound select has an ORDER BY clause with 
multiple terms. (CVS 3011)

FossilOrigin-Name: 4f56949bd69fed6167fa2ae115d0251e8369d796
 2006-01-23 18:42:21 +00:00
drh
504b69898b Performance optimization in btree.c. (CVS 2990) 
FossilOrigin-Name: 3e1e6affe256a950a81ad5939b628bafb8463b42
 2006-01-22 21:52:56 +00:00
drh
eda639e111 Code size reductions in select.c. (CVS 2989) 
FossilOrigin-Name: 3c2eee5e1f6c7d701a6d362a04cf896d44e97fd9
 2006-01-22 00:42:09 +00:00
drh
ac83963afa Do not flatten subqueries in a join where the subquery includes a LIMIT. 
Ticket #1634.  This is just an initial fix.  Many test cases need to be
added prior to closing the ticket. (CVS 2987)

FossilOrigin-Name: af18c0f431a1a6349e40249009f2ac222f8c8114
 2006-01-21 22:19:54 +00:00
drh
02afc86171 More compiler warnings fixed - or in some cases comments are added to explain 
that the compiler is wrong. (CVS 2984)

FossilOrigin-Name: 507653a98cbd096f836a977408e373640c7cdb8f
 2006-01-20 18:10:57 +00:00
danielk1977
9e12800dec Use a global variable protected by a mutex instead of thread-specific-data to record malloc() failures. (CVS 2972) 
FossilOrigin-Name: ac090f2ab3b5a792c2fdf897e10060f263e0d408
 2006-01-18 16:51:35 +00:00
danielk1977
e725929686 Minor modification to restoreOrClearCursorPosition() to improve efficiency. Do not allocate the extra 8-bytes if memory-management is not enabled. (CVS 2936) 
FossilOrigin-Name: dd705955429d847af85ffaf248976bcd1d861852
 2006-01-13 06:33:23 +00:00
drh
6f7adc8a80 Automatically deallocate thread-specific data when it is no longer 
being used.  Ticket #1601.  Also implemented the suggestion of
ticket #1603. Memory management is now off by default at compile-time.
The sqlite3_enable_memory_management() API has been removed. (CVS 2919)

FossilOrigin-Name: 5d9c6aa964305c3f36741ff0058da5b5f3ce0d24
 2006-01-11 21:41:20 +00:00
danielk1977
b3bf556ef6 Store collation sequence names instead of pointers in sharable schema data structures. (CVS 2904) 
FossilOrigin-Name: 0f0213be4d064b3d24e31ff93ec16f6862003d26
 2006-01-10 17:58:23 +00:00
danielk1977
14db26653a Fix some errors to do with attached databases and text encodings in shared-cache mode. (CVS 2895) 
FossilOrigin-Name: 3e75d3d5efebc0dfff1adfc13d85e85ec39db3eb
 2006-01-09 16:12:04 +00:00
danielk1977
e501b89ada Rename DbSchema to "Schema" and SqliteTsd to "ThreadData". (CVS 2893) 
FossilOrigin-Name: 82b81f69c78cb3f54634d9aea4f6a838474dc5e5
 2006-01-09 06:29:47 +00:00
drh
3a12924798 Remove benign reference to an uninitialized variable. Ticket #1590. (CVS 2890) 
FossilOrigin-Name: 32998fe8ed38a79eb79d8b13051b47bf74661e3c
 2006-01-09 00:09:01 +00:00
drh
15007a99e4 Get LIMIT and OFFSET working again for negative limits and offsets. 
Ticket #1586. (CVS 2889)

FossilOrigin-Name: b2ac0be07ec76ab23b7e5b800c0bc62d0bc97f4b
 2006-01-08 18:10:17 +00:00
drh
d59ba6ce61 Reduce memory requirements for ORDER BY combined with LIMIT. Ticket #1586. (CVS 2887) 
FossilOrigin-Name: 55e703ecac6e03d7364c2d919ba18d7293d6b7f6
 2006-01-08 05:02:54 +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
ad68cb6b69 Fix for ticket #1582 (Double delete of invalid LIMIT clause Expr* applied to a UNION ALL query). (CVS 2861) 
FossilOrigin-Name: 5dec3a392ba3c249bbca899c12e99c26cc1b8cdb
 2006-01-05 14:22:33 +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
f93339decb Always case 0 to (char*) on varargs functions. Otherwise there are problems 
on 64-bit machines. (CVS 2854)

FossilOrigin-Name: 837dc77ff9f5271b7e1bb8602fc021670c7802d1
 2006-01-03 15:16:26 +00:00
drh
2646da7e52 Clean up annoying (and pointless) compiler warnings about differing signedness. (CVS 2810) 
FossilOrigin-Name: 83a59151559d9496d4f546e03e65087ea974717d
 2005-12-09 20:02:05 +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
4efc083f57 Fix a problem with the sorting of literals in a compound query. Ticket #1501. (CVS 2770) 
FossilOrigin-Name: b3882b434a1ef7d8d636c7c5917b9e8f0d2952fb
 2005-11-16 13:47:50 +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
ffe07b2dc1 First cut at supporting CHECK constraints. Everything appears to work, 
but much more testing is needed as well as documentation. (CVS 2754)

FossilOrigin-Name: 2313d912baeca0fd516d524f16708953de483729
 2005-11-03 00:41:17 +00:00
drh
ec7429ae27 More efficient handling of the LIMIT clause. Scalar subqueries and EXISTS 
on compound SELECT statements now working properly.  Ticket #1473. (CVS 2747)

FossilOrigin-Name: edca8913ca012fc0c17343a27f819de95147b1bd
 2005-10-06 16:53:14 +00:00
drh
de29e3e9be Add VM code comments on the group-by processing. Extra group-by test case. (CVS 2731) 
FossilOrigin-Name: 655e75ac7d96b05c118226c5b70443da2df319ec
 2005-09-20 18:13:23 +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
4f68623875 Cleanup the implementation and the documentation of the new 0x200 P1 flag 
on the VDBE comparison operands. (CVS 2729)

FossilOrigin-Name: f22d0f64a0b9100e16746fb800efa508d286e40e
 2005-09-20 13:55:18 +00:00
drh
e313382e3e NULLs compare equal to each other when computing GROUP BY categories. (CVS 2728) 
FossilOrigin-Name: d9b0c9705379a8b3a28a83bb29fc1cd688fe184e
 2005-09-20 13:11:59 +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
4b14b4d720 Do not optimize views with an ORDER BY clause if they are used in a UNION ALL 
that also has an ORDER BY clause.  Ticket #1444. (CVS 2723)

FossilOrigin-Name: 6cc57fcf15cfa3ce73c78b1cac90f7806e5bae40
 2005-09-19 17:35:53 +00:00
drh
a7aa59e097 Fix uninitialized value on a UNION ALL select with an ORDER BY clause. (CVS 2722) 
FossilOrigin-Name: 92126a216101d30e16390bf063d52d7182fbc763
 2005-09-19 15:37:06 +00:00
drh
9d4673a9ea Bug fix in the new COUNT(DISTINCT) logic. Ticket #1420. (CVS 2689) 
FossilOrigin-Name: 37116550d33d8e3bdc15cd9998b9d2b97dec312b
 2005-09-12 23:03:16 +00:00
drh
c99130fd82 COUNT(DISTINCT x) is now fully functional, though it could benefit from 
additional testing. (CVS 2688)

FossilOrigin-Name: 2f397bd8142ec5e8f7238127012d14fdb558d918
 2005-09-11 11:56:27 +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
97571957a1 Aggregates with GROUP BY can sometimes return no result rows. (CVS 2674) 
FossilOrigin-Name: 0c3e368d4766685b94a44f2c514e2dea806c297c
 2005-09-08 12:57:28 +00:00
drh
9d2985c7b4 Optimizations and refinements. Improvements to test coverage. (CVS 2667) 
FossilOrigin-Name: 7283f7c29db4f622380b6a5cb745a4dc0c8e6a25
 2005-09-08 01:58:42 +00:00
drh
5360ad34b1 All regression tests now pass. But I am sure there must still be problems. 
New tests need to be added. (CVS 2666)

FossilOrigin-Name: bcc7d722cea4487a3adf9d9b2af4b74bfbfc5f39
 2005-09-08 00:13:27 +00:00
drh
5774b80629 More bug fixes. But there are still tests that fail. (CVS 2664) 
FossilOrigin-Name: 7e85a162d0ecf0acdbffcacc62b60d97fe123881
 2005-09-07 22:48:16 +00:00
drh
a10a34b88f Bug fixes in aggregate processing. Fewer tests fail. (CVS 2663) 
FossilOrigin-Name: c3ac58592f5e6305640868cdf42c129f1a25255d
 2005-09-07 22:09:48 +00:00
drh
13449892ef Rewrite the aggregate handling logic so that it runs in O(1) space. 
This is the first cut at the code.  Many regression tests fail. (CVS 2662)

FossilOrigin-Name: 17039ec3ff4396862beedf4a8af89654b2140f58
 2005-09-07 21:22:45 +00:00
drh
d81bd4e209 Fix bugs introduced by checkin (2656) and do some modest code enhancements. (CVS 2657) 
FossilOrigin-Name: 7b56763a8b514834198d2392639d6d726b17d901
 2005-09-05 20:06:49 +00:00
drh
4db38a7092 All regression tests now pass with the new bounded-memory sort code. 
There is still lots of opportunity for optimization, however. (CVS 2654)

FossilOrigin-Name: 81259a01f1e85ba50a1d017b1282bf841b16f0a5
 2005-09-01 12:16:28 +00:00