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Code Activity
4,768 Commits 1,606 Branches 185 Tags
cac336ad95994a2f26685c09e2aeeba5087d1956
Commit Graph

671 Commits

Author SHA1 Message Date
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
4928570812 Changes to make corruption errors easier to track down. (CVS 2709) 
FossilOrigin-Name: c07330000b9427a77f412918078beffa18de2c36
 2005-09-17 15:20:26 +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
289ab0760b Correct the sense of a test for SQLITE_DEBUG on the resent NDEBUG change. 
Ticket #1425 (CVS 2693)

FossilOrigin-Name: 81fdffdff6fd107c361b1ee69649455143bf3921
 2005-09-13 16:12:47 +00:00
drh
b27795c183 Fix a comment typo in the previous check-in. (CVS 2691) 
FossilOrigin-Name: 49c952807dabd80bfeb46caf55856aaab988226c
 2005-09-13 00:02:16 +00:00
drh
4b529d97ff Automatically set the NDEBUG preprocessor macro unless SQLITE_DEBUG is set. 
In this way, assert() statements become opt-in rather than opt-out. (CVS 2690)

FossilOrigin-Name: 2ec2bd85741e36e410f05ff34de430ffbcf51eea
 2005-09-13 00:00:00 +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
fd35797469 Infrastructure for the DISTINCT keyword in aggregate functions. But it does 
not work yet.  If you try to use it you get an error message. (CVS 2680)

FossilOrigin-Name: 4d62e36fe3819c2a1412737c2ec8a91ddc5e1777
 2005-09-09 01:33:19 +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
d49c16ee9b Changes to comments only in sqliteInt.h. No changes to code. (CVS 2668) 
FossilOrigin-Name: cc2a61650ea0d4b2ef67e144424327362999526d
 2005-09-08 02:00:25 +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
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
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
0342b1f542 Sorting is now done using a sorting index rather than loading the entire 
result set into memory and doing a merge sort.  The old merge sort technique
was a carry-over from SQLite version 1.  The new method uses a bounded amount
of memory and scales to much larger result sets.  There are still errors:
some 39 regression tests fail. (CVS 2653)

FossilOrigin-Name: 09db0a24241f9248584250d1728117b8a3159626
 2005-09-01 03:07:44 +00:00
drh
5d9a4af9af Minor code enhancements. (CVS 2642) 
FossilOrigin-Name: 4ab994a87ee844f453d693555abd61b51bb44a0e
 2005-08-30 00:54:01 +00:00
drh
19e2d37f1d Increase resolution of time-of-day on unix. Add an experimental 
sqlite3_profile() API. (CVS 2639)

FossilOrigin-Name: ed2ca0873fa89d6cfd123541d5d1c6b92c72b6ab
 2005-08-29 23:00:03 +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
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
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
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
497e446d76 The results of ANALYZE are now loaded into internal data structures where 
they can be used.  But they are not actually used yet. (CVS 2562)

FossilOrigin-Name: 1996bacfb97180965304e2a6d6784b6ecbbf8575
 2005-07-23 03:18:40 +00:00
drh
ff2d5ea408 First code for the ANALYZE command. Mostly untested. The analysis is 
not loaded into the symbol tables and is not used by the optimizer. (CVS 2560)

FossilOrigin-Name: a4886b114d2ccb3841d3d219f6b97f67745b13c2
 2005-07-23 00:41:48 +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
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
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
a4afb65cb7 Make sure there is only one busy counter. Ticket #1315. (CVS 2543) 
FossilOrigin-Name: af2a0ba4a38abf208db1ff6f018cf756de2afd5b
 2005-07-09 02:16:02 +00:00
drh
9170dd7e1c Change the name of the OpenTemp opcode to OpenVirtual which is more 
descriptive of what it does. (CVS 2541)

FossilOrigin-Name: 3bb9ce5f20d0a6bc19df31df9b8e82044c3e6004
 2005-07-08 17:13:46 +00:00
drh
392e597c8a Add the EP_OptOnly flag on expressions for WHERE clause 
terms that are added by the optimizer but should not be coded. (CVS 2540)

FossilOrigin-Name: f4a66ed04dfd8714746b766b4859682ea18e328f
 2005-07-08 14:14:22 +00:00
drh
9f18e8a0c4 Add infrastructure for the ANALYZE command. Does not yet actually 
do anything. (CVS 2537)

FossilOrigin-Name: 05b6ac9a76fd5765c50e81588f8e71c59fe35ce4
 2005-07-08 12:13:04 +00:00
drh
eb55bd2fe9 Allow the DEFAULT value of a column to be obtained by calling a 
function that has constant arguments, such as julianday('now'). (CVS 2534)

FossilOrigin-Name: d273766ef2442eb87971b07f9ecf5682c88298ee
 2005-06-30 17:04:21 +00:00
drh
487e262f44 Remove the blob(), text() and numeric() functions added in (2524) and 
replace them with the standard CAST operator.
Ticket #1287. (CVS 2527)

FossilOrigin-Name: 17631785f9ee8ab280c82677eb53886912e085bc
 2005-06-25 18:42:14 +00:00
drh
f0863fe568 Update older opcode names to be more meaningful in light of the latest 
code design. (CVS 2506)

FossilOrigin-Name: 36f2da1f8d8d434f861ecad55c9d86549751c954
 2005-06-12 21:35:51 +00:00
drh
ed8a3bb108 Reference count Table structures so that they are not deallocated too soon. 
Ticket #1210. (CVS 2498)

FossilOrigin-Name: e73d25c7419d580c47925494621df26d2fb9f27e
 2005-06-06 21:19:56 +00:00
drh
41f5852eea Handle failures of getcwd() without segfaulting. Ticket #1274. (CVS 2490) 
FossilOrigin-Name: c1691004d6d81b683a4ca5b1723c0de8b9b4e376
 2005-06-06 15:06:39 +00:00
danielk1977
4dade03788 Rearrange code so that SSE can invoke the collation factory. (CVS 2482) 
FossilOrigin-Name: ea061d2ed3b25908fcfcb88e35ba612e5832a217
 2005-05-25 10:45:10 +00:00
drh
97903fef77 Remove the config.h file from the build. Ticket #1224. (CVS 2480) 
FossilOrigin-Name: 3e64f1ab417f371e9875915303b898c5b45f0807
 2005-05-24 20:19:57 +00:00
danielk1977
fd9a0a45a7 Move a few things around to make building without the parser easier. (CVS 2479) 
FossilOrigin-Name: 5fadb464eb77b4b998d8555f83401769960ea904
 2005-05-24 12:01:00 +00:00
danielk1977
7e900abf0a Add pFetch variable (used by SSE) to sqlite3 structure. (CVS 2475) 
FossilOrigin-Name: 2a8ac869671b627d4d01655bbce7a781bc74af44
 2005-05-23 04:51:01 +00:00
drh
132d8d6ab9 Never user a pointer to standard library routines malloc() and free(). 
This rule is to
work around limitations of MSVC and the _fastcall calling convention.
Ticket #1256. (CVS 2473)

FossilOrigin-Name: a39c446726099e4915a1ad72c019d3c2cfe065bb
 2005-05-22 20:12:37 +00:00
drh
fcd35c7b8c More structure rearrangements for additional size reductions. Ticket #1253. (CVS 2468) 
FossilOrigin-Name: 6b6e525b294a5bbf8a5e56a2f60aa096865aedbd
 2005-05-21 02:48:08 +00:00
drh
7e62779a58 Prevent a segfault described by ticket #1229. (CVS 2450) 
FossilOrigin-Name: 0667eae9a97059125a77bd90452d19dc17c30a12
 2005-04-29 02:10:00 +00:00
drh
2e66f0b972 Enhancements to allow for extensions. (CVS 2448) 
FossilOrigin-Name: 6863703abcb2bf31d65792d4de9ae20aba2eadb5
 2005-04-28 17:18:48 +00:00
drh
f8db1bc03b Remove some vestigal code. Add the experimental sqlite3_transfer_bindings() 
API. (CVS 2446)

FossilOrigin-Name: 88b39436f00d645cdb6333a7413c698c42227d3f
 2005-04-22 02:38:37 +00:00
danielk1977
53c0f7480b Add the SQLITE_OMIT_TEMPDB compile time macro. (CVS 2427) 
FossilOrigin-Name: c41d55443c2dd532147962b87f542fb7d37075fd
 2005-03-29 03:10:59 +00:00
danielk1977
6b456a2b46 Add function to recover from a malloc() failure. (CVS 2414) 
FossilOrigin-Name: 1f9d10d7965c95d1e35f64cf4c3f128adabd41f2
 2005-03-21 04:04:02 +00:00
danielk1977
19a8e7e882 Add the ALTER TABLE ... ADD COLUMN command. (CVS 2393) 
FossilOrigin-Name: 94185dd4f7e2e941c74a521488d1212a75927218
 2005-03-17 05:03:38 +00:00
danielk1977
aee18ef8e2 Support for a future ALTER TABLE command to add columns with default values. (CVS 2367) 
FossilOrigin-Name: 9d5abc1ddf6da37563c12d5a0401b89bb4e51c59
 2005-03-09 12:26:50 +00:00