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19,138 Commits 1,611 Branches 185 Tags
98b677f2cb15b1dff79920237b9961d7b5c05a5a
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13138 Commits

Author SHA1 Message Date
drh
6be515ebe0 Improved detection and handling of NULL values on the RHS of a IN operator. 
FossilOrigin-Name: 468e730036edac22cfeb9ea3515aa16e6bcd6650
 2014-08-01 21:00:53 +00:00
drh
e21a6e1dfe Remove an unnecessary OP_Null in the IN-operator logic. Attempt to clarify 
comments explaining the IN-operator code, though it is not clear that the
comments are correct even yet - more work to be done.

FossilOrigin-Name: c11e55fabbc718cb324ecd3540453c25db98f50c
 2014-08-01 18:00:24 +00:00
drh
e80c9b9ad5 The idea of coding IN operator with a short list on the RHS as an OR expression 
turns out to be helpful.  If the list is of length 1 or 2, the OR expression
is very slightly faster, but the ephemeral table approach is clearly better for
all list lengths greater than 2.  Better to keep the code simple.

FossilOrigin-Name: e13175d3579e1045165bab091b3b28951d691704
 2014-08-01 15:34:36 +00:00
drh
3a85625d87 Begin making changes to the IN operator in an attempt to make it run faster 
and to make the code easier to understand.

FossilOrigin-Name: ee0fd6aaf94cda1dce3fe752bfe3b0f83e0043f1
 2014-08-01 14:46:57 +00:00
drh
cefc87fca5 Enhance the PRAGMA integrity_check command to detect UNIQUE and NOT NULL 
constraint violations.

FossilOrigin-Name: 9abcf2698c09f4f6a44a68e74f9f6b538f3253d6
 2014-08-01 01:40:33 +00:00
drh
5f1d1d9c87 Refactoring: Change "pIndex->onError!=OE_None" to use a macro: 
"IsUniqueIndex(pIndex)".  Easier to understand that way.

FossilOrigin-Name: e75b26ee357bb3d3c1a539b05d633ebf314726d7
 2014-07-31 22:59:04 +00:00
drh
37e08081f3 Omit a pointless OP_Null when processing a value-list RHS of an IN operator 
where the LHS is a rowid.

FossilOrigin-Name: 1361450a9dfe9476e8df98f370a3695752252245
 2014-07-31 20:16:08 +00:00
mistachkin
202cb64189 Optimizations to the OS sub-type checking in the Win32 VFS. 
FossilOrigin-Name: 1e5489faff093d6a8e538061e45532f9050e9459
 2014-07-31 18:54:01 +00:00
drh
4387006c18 Deactivate the DISTINCT in a SELECT on the right-hand side of an IN operator, 
since it should not make any difference in the output but dues consume extra
memory and CPU time.

FossilOrigin-Name: f4cb53651b1e352fae7378878b830a902bcd9248
 2014-07-31 15:44:44 +00:00
mistachkin
0174ffa976 Re-integrate the recent changes from the 'winMutex' branch back into the Win32 mutex subsystem. 
FossilOrigin-Name: 5360ecb0b8891d0c27f3f02d81b6c7b548361a10
 2014-07-30 23:11:16 +00:00
drh
d42d0bed94 Add three new static mutexes for use by the application. This is a partial 
import of changes from the threads branch.

FossilOrigin-Name: 3aad01960f92c5e77dba64ac1a6c6b063378fb97
 2014-07-30 21:10:12 +00:00
drh
c0fea3cf53 Add a new sqlite3FaultSim() call to vdbePmaReaderSeek() to facilitate 
tests of error handling in the sorter.

FossilOrigin-Name: 655d8cfc752b3f5f63521a57f2155f8e14aaf7c4
 2014-07-30 18:47:12 +00:00
drh
c690461ea1 Mark some invariants in the vdbesort.c logic when SQLITE_MAX_WORKER_THREADS==0. 
FossilOrigin-Name: 721cd965859c9ccc24d2a1d2851c914229e584b3
 2014-07-30 17:21:37 +00:00
drh
a1a8298c2e Add the "eForce" parameter to the sqlite3_multiplex_shutdown() entry point 
in test_multiplex.c.  Shutdown is forced if true.  Shutdown is not done if
there are pending database connections and eForce is false, but an error log
entry is made instead.

FossilOrigin-Name: c7303d0139f7e7f4fa7060b52942e6c6c6d4b622
 2014-07-30 15:43:05 +00:00
drh
bd1c881a91 Merge recent trunk changes, and especially the fix for the CREATE UNIQUE INDEX 
problem of ticket [9a6daf340df99ba9].

FossilOrigin-Name: 5b50a8380b2b678c1646ff303e3696efc1d7d92c
 2014-07-30 14:44:24 +00:00
drh
39a7bfd361 Merge the fix for the CREATE UNIQUE INDEX problem into the sessions branch. 
FossilOrigin-Name: 43401ee624587ffa166c3cda7e5265ad0d81da5c
 2014-07-30 14:29:54 +00:00
drh
ac50232d0f Ensure that the correct number of columns in a UNIQUE index are checked for 
uniqueness, regardless of whether or not the original table has a ROWID or
if the columns are NOT NULL, etc.  Ticket [9a6daf340df99ba93c].

FossilOrigin-Name: 6b785e92f279cb65746834d5cd25594fd3333342
 2014-07-30 13:56:48 +00:00
mistachkin
0479c6ab9b Disable an assert that is sometimes generated spuriously. 
FossilOrigin-Name: bd9ee0ea69181526cfc3cadac33a5ec5190112b0
 2014-07-29 21:44:13 +00:00
mistachkin
acd57ea0c2 Update return value checking to conform to the beginthreadex() specs. 
FossilOrigin-Name: 3144a16f91364b455e54e6030714e1c12ab0bdb7
 2014-07-29 19:00:43 +00:00
mistachkin
7c2231cf3b Add a couple more assert statements. 
FossilOrigin-Name: 4e816db235025c7998c649fddabfd807290a08b9
 2014-07-29 18:53:01 +00:00
drh
b92284de11 Fix unreachable branches in the threads.c module. 
FossilOrigin-Name: 3175e366bbf7579ec9ab27214b0a4e5cd27ea204
 2014-07-29 18:46:30 +00:00
mistachkin
edd93c3349 Merge updates from trunk. 
FossilOrigin-Name: 08c9a4ea6353900095a471365a8611a443f5f399
 2014-07-29 18:03:36 +00:00
drh
cd4b637760 Fix a harmless compiler warning. 
FossilOrigin-Name: 216d21d0e62b3c0ad49f3cb395c845bf4f17ac61
 2014-07-29 17:22:12 +00:00
mistachkin
b1ac2bc8da Make the Win32 thread handles are available after the threads exit. 
FossilOrigin-Name: 565c5af7a75ad5c759ce1a61dab3a61c42819644
 2014-07-29 16:37:53 +00:00
drh
19f30dc171 Fix the threads build on Windows when SQLITE_MAX_WORKER_THREADS is greater 
than 0.

FossilOrigin-Name: f37db3a03d95b508066745613029b7dd1240b31c
 2014-07-29 15:18:00 +00:00
drh
011b2e5dd3 Merge the R-Tree fix and the new SQLITE_TESTCTRL_ISINIT test control from 
trunk.

FossilOrigin-Name: b2f7eb3cc27ecf9a6a88907991148bca1a7d54b3
 2014-07-29 14:16:42 +00:00
drh
43cfc230ab Add the SQLITE_TESTCTRL_ISINIT file control. 
FossilOrigin-Name: 8b651d4d6cde7efbc0cc7155948f477477be100e
 2014-07-29 14:09:21 +00:00
drh
aae73527ad Merge recent trunk changes, and especially the fix for the R-Tree problem 
described in ticket [d2889096e7bdeac6].

FossilOrigin-Name: 8f1beeade0ddf802900c9d203a4fd678d1190394
 2014-07-29 12:40:45 +00:00
mistachkin
d6918657d8 Enhancements and updates to the Win32 mutex subsystem. 
FossilOrigin-Name: 18984c321049a759f6619cfa17fb3f4e7b3e08ea
 2014-07-29 05:49:02 +00:00
mistachkin
fc129698e0 Add some asserts to the Win32 mutex subsystem. 
FossilOrigin-Name: e8f2dc5fadae96252649875c234fcdef1108bd48
 2014-07-29 00:42:39 +00:00
drh
2b49327d08 Fix the build on windows. 
FossilOrigin-Name: 2773a5f9879a106a89a3d0bc3c5bfdcb2fe43c7c
 2014-07-29 00:23:08 +00:00
drh
bde27aaa5a Remove an unnecessary parameter from vdbeMergeEngineStep(). Rename a couple 
other routines to be more descriptive of what they do.

FossilOrigin-Name: f2407a40f339fa6c2cec194f78ae7c93655b1ec1
 2014-07-28 20:16:41 +00:00
drh
d906514d98 Rename vdbeIncrMergerInit() to vdbeMergeEngineInit() - a much more accurate 
name.

FossilOrigin-Name: 5b084a2dd581141b2d0cd9d1a5975625f65ec34d
 2014-07-28 19:58:41 +00:00
drh
8a4865f139 In vdbesort.c, rename vdbeSorterDoCompare() to vdbeMergeEngineCompare() and 
move it closer to the one place where it is called.  Other minor comment
changes.

FossilOrigin-Name: 09d50d9f0fe7df26dadb0a332731683a07a89fde
 2014-07-28 18:57:40 +00:00
drh
a4c8ca049e In vdbesort.c, rename all pointers to sqlite3_file objects "pFd" and use the 
name "pFile" only for pointers to SortFile objects.  Other comment enhancements.

FossilOrigin-Name: 518290a7fc0994f9593c5c3ba5b2610a1b86dae1
 2014-07-28 17:18:28 +00:00
drh
966d9f267f Merge recent trunk changes into the threads branch. 
FossilOrigin-Name: 163c247bd8280ab14fe577329c631c8bd884707f
 2014-07-28 15:01:37 +00:00
drh
ac65196e4d Improvements to comments in the multi-threaded sorter. Also include a 
function name change for clarity.  And add a test to help show that the
MergeEngine object is only used by a single thread.

FossilOrigin-Name: 9af50a878f67c1c2a4f1520160cc989650d7196a
 2014-07-28 14:54:50 +00:00
drh
e6bc1ef68f Remove an unreachable branch from the sqlite3_value_numeric_type() interface. 
FossilOrigin-Name: 5350229b52b18a4961858a30538c5c75e5bd3048
 2014-07-26 20:12:56 +00:00
drh
975b4c6e8b Avoid unnecessary no-op calls to applyNumericAffinity() for a small 
performance improvement.

FossilOrigin-Name: 413d7287977702fa651c0140bd5cf29021fe3e79
 2014-07-26 16:47:23 +00:00
drh
eac5bd7870 Try to fix harmless compiler warnings reported by Fortify. 
FossilOrigin-Name: e0fa6fdc14ac5458f9200cbae124f8025ea534ea
 2014-07-25 21:35:39 +00:00
drh
5dad9a3497 Improved comments on VDBE opcodes, for better documentation. No code 
or logic changes.

FossilOrigin-Name: 2d32e4876e0b162730f81e5c2658be12d64a9a99
 2014-07-25 18:37:42 +00:00
drh
8af3f772c1 Add constraints (enforced only when SQLITE_DEBUG is enabled) on the use of 
OP_Next and OP_Prev.

FossilOrigin-Name: 2230c74f1efa591770176c9b40e920724a3c39e1
 2014-07-25 18:01:06 +00:00
drh
f8c7e053ed Improve the performance of the ANALYZE command by taking advantage of 
UNIQUE constraints on indices.

FossilOrigin-Name: 114dcf33670fd98a1ebbac0e44f66b2d8bcccddf
 2014-07-24 23:23:26 +00:00
mistachkin
22c9638efd Correct help text and make consistent use of snprintf. 
FossilOrigin-Name: 9c424a5c50e4a2ed36556e99fba0e7072a2d3468
 2014-07-24 22:51:18 +00:00
drh
d15f87ecfd Fix a bug in the whereRangeSkipScanEst() procedure (added by 
check-in [d09ca6d5efad3e4cfa]) where it fails to consider the possibility
of a ROWID column when computing the affinity of a table column.

FossilOrigin-Name: 6aea2258dd7d3967900cefe4cd0af48a7ee7e169
 2014-07-24 22:41:20 +00:00
mistachkin
486fd43fd8 Fix typo in comment and update help text. 
FossilOrigin-Name: 289092bb64463efe78a5f01b06b24aa664a31feb
 2014-07-24 22:20:23 +00:00
mistachkin
fad4208f2f Merge updates from trunk. 
FossilOrigin-Name: 8dc0cdf652f099d464d3de416dffd83efb895009
 2014-07-24 22:13:12 +00:00
drh
b12879fd1a Avoid trying to allocation zero bytes when analyzing a unique non-null index. 
FossilOrigin-Name: 85e2badeeb7f7599eb6fd35512f9bd524f0b1b3f
 2014-07-24 20:25:16 +00:00
drh
9d793325b0 Avoid change tests when analyzing single-column unique indexes after 
getting past the initial NULL entries.

FossilOrigin-Name: 4690e99c07024f40fafba1db8e4487b287b788a9
 2014-07-24 19:54:20 +00:00
drh
2bd2c29a95 Merge all recent trunk changes into the threads branch. 
FossilOrigin-Name: 770685892c8f09b9cddb2fbb2877cfb291e19425
 2014-07-24 16:54:28 +00:00