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Code Activity
11,691 Commits 1,608 Branches 185 Tags
dad19c320475942a449ac6f9817a4d06dfddf392
Commit Graph

678 Commits

Author SHA1 Message Date
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
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
dece1a8464 {quote: KeyInfo} generation moved to a common subroutine. (CVS 2652) 
FossilOrigin-Name: a25801df06e218e70570a6b9eae71603d590fe3a
 2005-08-31 18:20:00 +00:00
drh
5d9a4af9af Minor code enhancements. (CVS 2642) 
FossilOrigin-Name: 4ab994a87ee844f453d693555abd61b51bb44a0e
 2005-08-30 00:54:01 +00:00
drh
de941c605e Add an assert to verify that floating point values and integers use the 
same byte order.  Add a comment to the SELECT code generator. (CVS 2635)

FossilOrigin-Name: 07b4892149a436dbd904c781b46e3b9a82a7a744
 2005-08-28 01:34:21 +00:00
drh
c182d16302 General code cleanup resulting in smaller footprint. (CVS 2595) 
FossilOrigin-Name: 98338abf9e8cfbf8efa81cff0e40ea37e34fd9b2
 2005-08-14 20:47:16 +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
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
4a9f241c37 Elminiate a VM opcode that was no longer needed. (CVS 2505) 
FossilOrigin-Name: 97b348a5ad2f090ba7a75467b97c6dfb575df09c
 2005-06-12 12:01:19 +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
d70dc52d79 Honor the full_column_names pragma on * results. Ticket #1263. (CVS 2493) 
FossilOrigin-Name: 0d57f851ae4f483985710db149c8f541e45cdb86
 2005-06-06 16:34:33 +00:00
danielk1977
5c2d9155de If SSE is enabled, set the P1 field of OP_AggInit instructions to the 
number of arguments that will be passed to the aggregate function. (CVS 2484)

FossilOrigin-Name: 7f67b9f0f398583651d226fabf2fafd2635d772a
 2005-05-26 14:41:47 +00:00
danielk1977
1f55c05660 Always use a more specific type (P3_FUNCDEF) instead of P3_POINTER as the 
P3 type of a vdbe instruction. (CVS 2463)

FossilOrigin-Name: 79a41674be2c0a1990598428d8b1e9d09d3ea389
 2005-05-19 08:42:59 +00:00
drh
c43e8be80c Fix an uninitialized variable. Ticket #1244. (CVS 2460) 
FossilOrigin-Name: 582cb77d72031f78b560f67222a0e6ce5e3ca3f2
 2005-05-16 22:37:54 +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
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
drh
dd5b2fa5f2 Fix some memory leaks that occur after a malloc failure. (CVS 2421) 
FossilOrigin-Name: bcb5d72ef146b1019c72220701d385c7b0b5d0bd
 2005-03-28 03:39:55 +00:00
danielk1977
e94ddc9e43 Assorted fixes to the handling of various malloc() failures. (CVS 2413) 
FossilOrigin-Name: e7844a01c248e8d9204ea9214bec84c81dc07f32
 2005-03-21 03:53:38 +00:00
danielk1977
a1cb183d04 Fix a problem with sub-queries and the flattening optimization. Also handle an extra case of database corruption. (CVS 2324) 
FossilOrigin-Name: f7858d8830cdd0f57b8f9bc73068d29a7062b8ac
 2005-02-12 08:59:55 +00:00
danielk1977
a58fdfb162 Fix for correlated subqueries where the parent is an aggregate. Ticket #1105. (CVS 2318) 
FossilOrigin-Name: f0d3ca10c5bccf8fca7143028ebb3e604c0e3f20
 2005-02-08 07:50:40 +00:00
danielk1977
a2dc3b1a5e Allow expressions (including variables) in LIMIT and OFFSET clauses. Ticket #1096. (CVS 2316) 
FossilOrigin-Name: 515e5033a5482f55e7edb66d69ff3da7e234ff2e
 2005-02-05 12:48:48 +00:00
danielk1977
6a67fe8edf Remove code for SQL cursors. (CVS 2312) 
FossilOrigin-Name: 2eb90870556c90b8d85da3d5eb7554f74ec922c2
 2005-02-04 04:07:16 +00:00
danielk1977
c60e9b82db Assorted minor changes to speed up loading the database schema. (CVS 2293) 
FossilOrigin-Name: dfbd684a913022ad43ce59c3422d3d94f776d547
 2005-01-31 12:42:29 +00:00
danielk1977
142bdf4051 Respect collation sequences in views. Ticket #1088. (CVS 2291) 
FossilOrigin-Name: 9843c0dd795ceda3c260986f95b101a0cbc7cf64
 2005-01-30 11:11:44 +00:00
danielk1977
b3bce66232 Modify sub-query handling. Tickets #1083 and #1084. (CVS 2286) 
FossilOrigin-Name: b1b50f315873a8614920d1e3af4a07fb29a7ff6a
 2005-01-29 08:32:43 +00:00
danielk1977
e257300f2e Allow GROUP BY on non-aggregate queries. Ticket #1064 (CVS 2276) 
FossilOrigin-Name: 0642d3e3d6636a5f922f75c05252c9c1372d3936
 2005-01-26 03:58:35 +00:00
danielk1977
93758c8dcc Exclude a few more lines of code using OMIT macros. (CVS 2253) 
FossilOrigin-Name: c6fc49e61033419e78b6b10638d57f4942087961
 2005-01-21 08:13:14 +00:00
drh
fe2093d73e Bug fixes and enhancements entered while on jury recess. (CVS 2246) 
FossilOrigin-Name: 38401dfbd5e3b50dd4e7a11562a7770347cebdf4
 2005-01-20 22:48:47 +00:00
drh
51522cd34a Added the SQLITE_OMIT_SUBQUERY compile-time option and the EXISTS operator. 
Regression tests are currently failing with an assertion fault. (CVS 2245)

FossilOrigin-Name: d30fdf0f2c24cb74b48fab9b83fba4e4b2fe878a
 2005-01-20 13:36:19 +00:00
danielk1977
5338a5f74d Remove a few more lines of code when SQLITE_OMIT_** macros are defined. (CVS 2244) 
FossilOrigin-Name: 417bbba93ad7ed5c03d9db6afc12e170155bd152
 2005-01-20 13:03:10 +00:00
drh
1398ad3639 Continued refactoring of the name resolution logic and query optimizer. (CVS 2236) 
FossilOrigin-Name: d8b2a7e09187564fe66a2b4bf0992c6a017146cf
 2005-01-19 23:24:50 +00:00