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Author SHA1 Message Date
drh
e73e067187 Enable the ONEPASS optimization for DELETE, for both rowid and WITHOUT 
ROWID tables.

FossilOrigin-Name: 44a07afdd9b3ae2460bc963383295deb0915f899
 2013-11-18 03:11:54 +00:00
drh
83d47afe24 Make sure one-pass DELETE for WITHOUT ROWID tables correctly positions the 
PRIMARY KEY cursor.  Make the same fix for UPDATE.

FossilOrigin-Name: 6bd5750b7d5da221b0689f6df6be5ed0dce61bec
 2013-11-17 02:42:02 +00:00
drh
c51331d16d Fix a couple of minor problems with the new delete logic. 
FossilOrigin-Name: a11243f840d35aaed8ee3b9901c3950bc584a417
 2013-11-16 23:16:31 +00:00
drh
52a82e6966 Fix an OOM-recovery problem in the DELETE code generator. 
FossilOrigin-Name: dc7be158b82ab9156d0fcdf3394f881eac4d23c3
 2013-11-16 23:03:06 +00:00
drh
9612947260 Combine the rowid and WITHOUT ROWID paths for DELETE into a single path. 
FossilOrigin-Name: c4734b881a64a9d21d03a14e901785797577fbd8
 2013-11-16 22:48:52 +00:00
drh
156c7919d9 The one-pass optimization is now working for DELETE on WITHOUT ROWID tables. 
FossilOrigin-Name: e4d220a381388f900a95d1b656a82f14c837f92e
 2013-11-16 20:45:01 +00:00
drh
6a53499a20 Enhance the DELETE logic so that it can make use of WHERE_ONEPASS_DESIRED 
for rowid tables.

FossilOrigin-Name: 8f479a72758ab6fedb171ada612b1963143c32fa
 2013-11-16 20:13:39 +00:00
drh
aedfc5078a Fully constraint the ORDER BY on the top-10 line of the --summary output 
from the wordcount test program.  Add the run-wordcount.bash script for
running wordcount in various configurations.

FossilOrigin-Name: 7edf39eb93a8f9059a788f5fccf41c2be40afd4d
 2013-11-16 15:35:18 +00:00
drh
64bbbf3383 Avoid unnecessary OP_IfNull checks when doing a range query where there 
is a constraint on the lower bound of the range.

FossilOrigin-Name: de08a7e7abbad9b94d0268d096ef4555d31c8b0c
 2013-11-16 14:03:53 +00:00
drh
e6d058cd97 Simplification and performance improvement to the logic that factors 
constant expressions ouf of inner loops.

FossilOrigin-Name: ee9353fdf3c8f19cd3c344ea8fb7c6d13cadd632
 2013-11-16 13:55:34 +00:00
drh
143867516b Fix testcase misc7-16 so that it works with the new UNIQUE constraint error 
message format.

FossilOrigin-Name: c7f2ed9f44be3b66a542ee42c0db63bab8ffd2db
 2013-11-16 12:56:46 +00:00
drh
85f8aa7907 Add ALWAYS and NEVER macros to currently unreachable but important branches in 
sqlite3ExprCompare().

FossilOrigin-Name: cee835fe902e46f283257fb8ec9d9744c7d6dd77
 2013-11-15 20:06:26 +00:00
drh
8e2ea000b5 Merge the operator comment fixes from trunk. 
FossilOrigin-Name: 9f14f55c8ab77e73dbffb7a9c99422bef14cc17a
 2013-11-15 19:00:20 +00:00
drh
40864a1401 Fix comments on the OP_Divide and OP_Remainder operators, especially the 
"Synopsis:" comment, so that they agree with the actual implementation.

FossilOrigin-Name: cc17f1f05f15e9c62659a49c0656ff2b667bf701
 2013-11-15 18:58:37 +00:00
drh
c2acc4e466 Changes to make the new constant expression factoring logic more general 
and more testable.

FossilOrigin-Name: d10fb49a92f5f6e93093ae83544e5aec7984361a
 2013-11-15 18:15:19 +00:00
drh
a0d6e3a501 Add test cases for INSERT INTO ... DEFAULT VALUES on tables with numeric 
constants in CHECK constraints.

FossilOrigin-Name: 79ec485b548fcfc508c4d5fa32ed0604e1b0c5d9
 2013-11-15 16:48:23 +00:00
drh
10d1edf0b6 Improvements to the Expr comparison routine to make it more general. 
Improvements to unary-minus code generation so that it can make use of
a global constant register with a zero value.

FossilOrigin-Name: 835be656bb0e83c8108104869166aa9dd850d265
 2013-11-15 15:52:39 +00:00
drh
776f3a2fa9 Add the --query option to the wordcount test program. 
FossilOrigin-Name: 5960d11eba4fc6ca136331279689424d03bd6e76
 2013-11-15 13:12:30 +00:00
drh
33cad2fb46 Simplify the range scan code generate while also avoiding an unnecessary 
OP_Affinity opcode.

FossilOrigin-Name: 372686bfbb1da08b04bddb085e30da5dbc8b30d8
 2013-11-15 12:41:01 +00:00
drh
7c89bed621 Merge EXPLAIN fixes from trunk. 
FossilOrigin-Name: cd579727b107a07140b94f5839d193959d29e6db
 2013-11-15 03:30:07 +00:00
drh
72dbffd726 Fix a typo in the "synopsis" for the OP_Lt opcode that causes an 
incorrect comment to be added to EXPLAIN output.

FossilOrigin-Name: d99a30a25d6102c389f1fb5ec389c137168615e9
 2013-11-15 03:21:43 +00:00
drh
602320e326 Another adjustment to the EXPLAIN indentation logic, in order to deal with 
the sorter loop on a CREATE INDEX statement.

FossilOrigin-Name: cbe85cc2a991d89a6cca391ffa1be0582a684e49
 2013-11-15 03:16:34 +00:00
drh
f30a969b80 Rework the logic that factors constant expressions out of inner loops, making 
it both simpler and faster.

FossilOrigin-Name: 8dc5c76c766828d7c28090bec30ff48227e7b140
 2013-11-15 01:10:18 +00:00
drh
01752bc805 Adjust the command-line shell EXPLAIN indentation logic to handle the 
second loop of an UPDATE that reads out a RowSet.

FossilOrigin-Name: ea141a9b87dbb5fa1402bf7f6e36e89cc9de3cb3
 2013-11-14 23:59:33 +00:00
drh
052e6a8a07 Remove an unused local variable. 
FossilOrigin-Name: 10d59226382adcb8016fc2d927e5a0c0b36f3980
 2013-11-14 19:34:10 +00:00
drh
400fcbad71 Simplification to the progress callback check. On branch removed. 
FossilOrigin-Name: 24ef16548eebcdb9d8b40308f6a16dabf8f8d474
 2013-11-14 00:09:48 +00:00
drh
e6400b9901 Make sure the progress callback is invoked prior to an SQLITE_ROW return if 
it is overdue to be called.

FossilOrigin-Name: 21f59b04f74738d08ebad693646bbaea24dc45ef
 2013-11-13 23:48:46 +00:00
drh
1f57794c92 Merge the skip-scan enhancement into trunk. 
FossilOrigin-Name: b0bb975c0986fe01f1184c1d4888fe397174ad0f
 2013-11-13 20:46:11 +00:00
drh
d24474475e Import the "PRAGMA vdbe_eqp" enhancement and the enhanced EXPLAIN formatting 
the shell from trunk.  Fix a bug in skip-scan and add a test case to prevent
a regression.

FossilOrigin-Name: f668616a29686f3ce532731c534b168e536adbb5
 2013-11-13 19:01:41 +00:00
dan
a98bf365fe In the shell tool, if an "EXPLAIN" command is executed in ".explain on" mode, attempt to automatically indent the bodies of loops in the output VDBE program. 
FossilOrigin-Name: e7d34ec6814ed4606a6d5d7f68c218ae4d25e666
 2013-11-13 18:35:01 +00:00
drh
84e55a80db Add the "PRAGMA vdbe_eqp" command, only available with SQLITE_DEBUG. Simplify 
some of the other debugging logic.

FossilOrigin-Name: 8ce33f4c818e1c785a1c176f6f631b8184e1166b
 2013-11-13 17:58:23 +00:00
drh
e084f40b37 Add VDBE comments to the beginning and end of skip-scan loops. 
FossilOrigin-Name: 0c85d93b52311dee7980d977be6ed0dc70b060c1
 2013-11-13 17:24:38 +00:00
drh
2e5ef4ed77 Improve the way that skip-scan loops are constructued. Add test cases. 
Improved the scoring of skip-scan loops.

FossilOrigin-Name: 5e75ab93881b85801cb4ebf70f2063ff7c51ac19
 2013-11-13 16:58:54 +00:00
drh
c2b23e7a98 Add test cases for skip-scan. Enhance "do_test" so that if the expected result 
is of the form "/*..*/" or "~/*..*/" it treats the expected result as a glob
pattern rather than as a regular expression.  Fix a bug in ANALYZE result
loading associated with WITHOUT ROWID tables.

FossilOrigin-Name: d3e6e9b2a74074c05429d3c341c23525504351ab
 2013-11-13 15:32:15 +00:00
drh
cd8629e4bb Add the ability to use an index even if the left-most columns of the index 
are unconstrainted, provided that the left-most columns have few distinct
values.

FossilOrigin-Name: 27dd5993d1ae5625eb94bf406421eb390d001be9
 2013-11-13 12:27:25 +00:00
drh
c181c26cba Avoid an unnecessary OP_IfNull while doing an indexed search. 
FossilOrigin-Name: 5196000930600d0cd931b87e864507791b9dab08
 2013-11-13 08:55:02 +00:00
mistachkin
015a304f75 Adjust the SQLITE_MALLOCSIZE defines, primarily to make sure _msize gets used with MSVC when appropriate. 
FossilOrigin-Name: 4e7e805e1139b2dc05d85e86e5c8254e5d361bf2
 2013-11-12 21:37:04 +00:00
mistachkin
3aa4be39a9 Fix harmless compiler warning. 
FossilOrigin-Name: ddacd10105c6df2d3a9d707947e72c62e88212eb
 2013-11-12 21:10:02 +00:00
drh
5e6790cb15 Minor enhancements to the auxiliary information added to EXPLAIN output with 
SQLITE_EXPLAIN_ENABLE_COMMENTS.

FossilOrigin-Name: 0d1328e33ca761eddcf8a50e8e83c997861e9047
 2013-11-12 20:18:14 +00:00
drh
e54df42d87 Break out the structure and macro definitions of where.c into a separate 
header file whereInt.h for easier editing and debugging.

FossilOrigin-Name: c44467124623733aac64096d605f16139b733a7f
 2013-11-12 18:37:25 +00:00
dan
85963f5474 When possible, have FTS use 32-bit operations to read varints from the database. 
FossilOrigin-Name: aa7ba302ed13aedde89b5bcbe9119799c0da8a42
 2013-11-12 17:46:44 +00:00
drh
5c7917e4b4 A better (simpler) fix to the count(*) problem addressed in the previous 
check-in.

FossilOrigin-Name: 0f924c6ef6cf2ac5a61aafa8dd8e3309b3970499
 2013-11-12 15:33:40 +00:00
drh
abcc1941db Make sure the count(*) optimization works correctly on WITHOUT ROWID tables. 
FossilOrigin-Name: 91174779786be07d63f3c4a5277602ddc5f0ba26
 2013-11-12 14:55:40 +00:00
dan
e3ab729a9c Update test command [explain_i] to handle the opcodes used by virtual tables (VNext, VFilter etc.). 
FossilOrigin-Name: 1b215ee3219750d3beda8f3628c8673efd517061
 2013-11-12 12:30:09 +00:00
dan
ff4b23ba9e Fix for [4065ac8595]: Do not order CROSS or LEFT joins, even if the right-hand-side is a virtual table. 
FossilOrigin-Name: e2684ece455f53563ae6da7cbb5505d9a4a3076a
 2013-11-12 12:17:16 +00:00
drh
f8396b201c Fix an error message in the spellfix extension so that it conforms to the 
style of error messages in the core.

FossilOrigin-Name: b896ae3d2787c370be3ff5d09da7d631a16d3a2a
 2013-11-12 01:11:56 +00:00
drh
5d2f6c211e Add a comment to the sqlite3_index_info structure indicating that the new 
field is only available in SQLite 3.8.2 or later.

FossilOrigin-Name: 239648f8ccf057eb05841ce65b108da53fdbf0a4
 2013-11-11 23:26:34 +00:00
dan
14ec33f73b Fix typos in compile and run-time tests of the sqlite library version number in rtree.c. 
FossilOrigin-Name: f58d57017199421167dae8ebc67db2f19be45082
 2013-11-11 19:56:35 +00:00
dan
a9f5815b67 Add a way for virtual tables to return the expected number of rows for a scan (not just the overall cost) to SQLite. Have the rtree module make use of this. 
FossilOrigin-Name: 5a3cfd747a85480d215784817c3821d87ecfa2f7
 2013-11-11 19:01:33 +00:00
drh
4308e348d7 Remove unreachable code, replacing it in most cases with assert() or NEVER() 
macros.

FossilOrigin-Name: 924d63b283a3d059838114c95d42c6feaf913529
 2013-11-11 16:55:52 +00:00