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16,215 Commits 1,785 Branches 392 Tags
pager-dev
Commit Graph

11344 Commits

Author SHA1 Message Date
drh
72e6a39907 For in-memory databases, it does not matter if pcache entries are marked 
"clean" or "writable".

FossilOrigin-Name: ad601c7962a60a11699cf31f1faee09b95d5c710
 2016-05-11 23:54:14 +00:00
dan
401907e3ff Remove a redundant condition from pcache.c. Add an OPTIMIZATION-IF-TRUE comment to another condition that requires it. 
FossilOrigin-Name: 3bfd2621d13b4f842f3af6d35519653f4eb8cad7
 2016-05-11 20:03:23 +00:00
dan
b2ef900ade Remove some a small amount of redundant code related to PCache.pSynced from pcache.c. 
FossilOrigin-Name: 9cc8cad78fdfe044ad6726ebfe6909c1e242fa55
 2016-05-11 15:41:15 +00:00
drh
a37e0cfb22 Do not reset the page cache when a rollback journal truncate fails, as doing 
so can cause loss of information for an in-memory TEMP file.

FossilOrigin-Name: 345ce1c9f64f2a424663b4dfcbe4586d9df7bff6
 2016-05-11 12:47:46 +00:00
drh
65c6420335 Always truncate, rather than persist, the rollback journal of a TEMP database. 
FossilOrigin-Name: 42fb6f1e99a6c31889819a0302679d598dc0ab1b
 2016-05-11 11:04:17 +00:00
drh
5c8e092804 Add pcache tracing macros. Off by default. Requires changing an "#if 0" 
and recompiling to enable.

FossilOrigin-Name: d9313d19c75a62f558b3df6b15595b15bbfa0b62
 2016-05-11 10:57:04 +00:00
drh
d12bc6022b Fix a problem in sqlite3PagerMovepage() when working on a temp table for which 
pages have been spilled.

FossilOrigin-Name: 20cf8811caf705b482be100baecb3ef72aee2d5a
 2016-05-10 20:03:08 +00:00
drh
3791c9c288 Fixes to requirements marks. No changes to code. 
FossilOrigin-Name: 79ecd0ef20c12198e950a730871444a980a0f1b2
 2016-05-09 23:11:47 +00:00
drh
e8da01c189 Make the sqlite3DeleteTable() routine smaller and faster. 
FossilOrigin-Name: d75140b851a34a5eb66041e294e421628efbc5ba
 2016-05-07 12:15:34 +00:00
drh
f09c48233a Simplification to the logic used to decide between OP_Seek and OP_NotExists. 
Use OP_NotExists for both DELETE and UPDATE.

FossilOrigin-Name: 3a695263183303e3f64eb2320752d0fdef53eaf2
 2016-05-06 20:23:12 +00:00
drh
a3fd75d426 Corrections to comments on the whereScanInit() interface. 
FossilOrigin-Name: ab7ab415d19524f6c3901e474d3a154f55d28530
 2016-05-06 18:47:23 +00:00
drh
87f8f1ac69 For DELETE operations, make sure that seeks on the main table are not 
deferred, since if they are and none of the indexes reference columns of
the table, the seek might never occur until the OP_Delete opcode, which is
too late.  Fix for ticket [16c9801ceba49].

FossilOrigin-Name: 93a2bace5704f7ecad56541a6b3e06a88f7f393f
 2016-05-06 16:49:54 +00:00
drh
bcf6884afd In the WHERE generator, when building code for a DELETE operation, make sure 
that seeks to the main table are not deferred.
This is a better fix for the [16c9801ceba49] bug than the previous.

FossilOrigin-Name: 150dd09ebd7b17234a79e1811a0fae8b0a7a40d5
 2016-05-06 16:06:59 +00:00
drh
70077d1733 Do not scan indexes that have the integer primary key as their left-most 
column.  This fixes the crash of ticket [16c9801ceba] but it seems like
the wrong fix.  More investigation needed.

FossilOrigin-Name: 50312273ffaf1bd4bfdc73865fa0b19166968429
 2016-05-06 11:31:10 +00:00
drh
ad5a9d715f Renumber internal constants in the printf() implemention for a small 
performance improvement.

FossilOrigin-Name: 69d11447f4b1a8c536c3b6573d2a3419da870412
 2016-05-05 11:53:12 +00:00
mistachkin
9fe3fbbc35 Fix typo in comment. No changes to code. 
FossilOrigin-Name: 6c43ba1c8753a4029e127078652f265c408a01c0
 2016-05-04 19:04:20 +00:00
drh
91da707280 Only disable the one-pass DELETE optimization if the WHERE clause contains 
a correlated subquery.  Uncorrelated subqueries are allowed.  This is a
refinement of check-in [3f221f592a9a1] that is the fix for
ticket [dc6ebeda9396087].

FossilOrigin-Name: aae389692a2ed2cc92151d51fb2cd5a16921c469
 2016-05-04 14:45:30 +00:00
dan
c88ae52d86 Disable the PagerDontWrite() optimization for temp tables. It can cause database corruption if a page passed to PagerDontWrite() is dirty at the start of a transaction that is subsequently rolled back. 
FossilOrigin-Name: 6341ab2ffef298ca16b323358afbea4a4c1fb0e1
 2016-05-04 11:28:03 +00:00
drh
48cd59a57d Avoid left-shifts of signed integers. 
FossilOrigin-Name: 0715ce164333e27671efbec8796f238df98cc287
 2016-05-03 00:04:55 +00:00
drh
57a07ba9a9 Disable the multi-row one-pass DELETE optimization when the WHERE clause 
contains a subquery.  Fix for ticket [dc6ebeda9396087].

FossilOrigin-Name: 3f221f592a9a19009076e568566c59801cd3fc32
 2016-05-02 12:18:56 +00:00
drh
44aebff246 Improvements to the way the LIKE optimization is implemented, resulting in 
slightly smaller and faster code that is easier to test.

FossilOrigin-Name: 54c63b329288729031f45b7778752552cd90e226
 2016-05-02 10:25:42 +00:00
drh
2f55511dfa Remove an unnecessary branch from the OP_String8 opcode. 
FossilOrigin-Name: 459a0b456da69112605b37adc9af27d79e35a4d7
 2016-04-30 18:10:34 +00:00
drh
99f5de771f Simplifications to the OP_Halt opcode implementation. 
FossilOrigin-Name: daf4630f96f13133664908045e279da9d5a40bb5
 2016-04-30 02:59:15 +00:00
drh
2aab11fa5a Fix the temporary directory search algorithm for unix so that it fails 
gracefully even if all candidate directories are inaccessible.  This fixes
a bug that was introduced by check-in [9b8fec60d8e].

FossilOrigin-Name: 614bb709d34e11488da88861243023cc5de4b409
 2016-04-29 20:30:56 +00:00
dan
20ae3264b8 Merge latest trunk changes, including test case fixes, with this branch. 
FossilOrigin-Name: 99794aca7b6cb40f08ce4db9889a989fc597eac9
 2016-04-29 11:35:28 +00:00
dan
288327ed81 Modify the permutations.test script so as to set any permutation specific configuration values before running each individual test script. Fix a mostly harmless buffer overread in the sessions module. 
FossilOrigin-Name: 4cbd50245440e714935399a5c285cf32d8bfc424
 2016-04-29 11:33:58 +00:00
drh
a3fa140fb4 Some optimization comments added to vdbe.c. No functional changes to code. 
FossilOrigin-Name: e7c22e3bffce63f3b47fa3683be8c00c42b2a7d3
 2016-04-29 02:55:05 +00:00
drh
aa50271a24 Further simplifications and improved commentting on the rowset.c module, 
including several optimization comments.

FossilOrigin-Name: 9f15a520deb9f1d4ecaa3bfff82bd57ef122aadb
 2016-04-28 22:29:31 +00:00
drh
396794f0ee Comment changes only: Add several optimization marks in rowset.c. Add 
a header comment that explains what the various special comments mean.

FossilOrigin-Name: 8cdbe89ac6c22d632f677eb293111b3dbae7d6c1
 2016-04-28 20:11:12 +00:00
mistachkin
2075fb08e6 Fix typo in comment. No changes to code. 
FossilOrigin-Name: 9f6f17b5c97c9576c340173d068485fdbfd53253
 2016-04-28 19:23:10 +00:00
drh
cb6d66becc Rearrange some code in the RowSet logic for clarity of presentation, while 
adding an /*OPTIMIZATION-IF-TRUE*/ comment.  It should operate identically.

FossilOrigin-Name: 5748e64376c1c2be5154a632d1527cfebbb9ec74
 2016-04-28 18:53:08 +00:00
dan
8443533178 Merge latest changes from trunk with this branch. 
FossilOrigin-Name: 45467ee49872f495d5276cf830f10c3cf4ac8e3c
 2016-04-28 14:59:05 +00:00
drh
75ab50ce8f Use comments to mark several branches as optimizations. No changes to code. 
FossilOrigin-Name: 33e627472780b872716c504f2d585cc057c390a5
 2016-04-28 14:15:12 +00:00
drh
10c0a2a7c9 Remove an unnecessary conditional from the sqlite3DecOrHexToI64() routine. 
FossilOrigin-Name: fcf85bfe50b254e825ee63a4cd0aa0b333b06eed
 2016-04-28 03:52:18 +00:00
drh
609d5846ba Change the sqlite3Atoi64() routine so that it returns failure if not all of 
the input characters are consumed, even if it consumed all characters up to
the first 0x00.  This has no impact on external APIs as far as I can tell.

FossilOrigin-Name: 46d4ffff3bd33d7e901e76cfac1cbde38d4f61d0
 2016-04-28 00:32:16 +00:00
dan
05accd2216 Modify the permutations.test script so as to set any permutation specific configuration values before running each individual test script. 
FossilOrigin-Name: 2662d8fef791f7b8b3b14f9c27dfedec84620dee
 2016-04-27 18:54:49 +00:00
drh
ad975d539e More simplification of the sqlite3AtoF() routine. Add special comments 
to indicate branches that are for optimization purposes only and that give
the correct answer even if always or never taken.

FossilOrigin-Name: 0065fe97cb8e5076acae1bf1560fd2f69dab9014
 2016-04-27 15:24:13 +00:00
drh
c6daa01c05 Remove still more unnecessary branches from sqlite3AtoF(). 
FossilOrigin-Name: 3adfe9f3e6ce7cc09fcb570d9b65e830a96cac15
 2016-04-27 02:35:03 +00:00
drh
15af62acff Further simplifications to sqlite3AtoF() to remove unneeded branches. 
FossilOrigin-Name: dd69e53cb077873171af5312c633ca185595bf31
 2016-04-26 23:14:45 +00:00
drh
e5f06fdc87 Remove an unnecessary line from the sqlite3AtoF() routine. 
FossilOrigin-Name: a9d007494cfe30a26dca5352655dc7702351476e
 2016-04-26 21:02:53 +00:00
drh
97a7e5e68c The pcache and the built-in VFSes should not use mutexes when 
SQLITE_CONFIG_SINGLETHREAD is set.

FossilOrigin-Name: 12418b100196abbfbfb85e0ab4bb6b1cbf335df7
 2016-04-26 18:58:54 +00:00
drh
ead01fd272 Add an sqlite3FaultSim() all to make it easier to simulate IO errors in 
a VACUUM commit.

FossilOrigin-Name: 8bfde416c51f4e087275aebf652a73985515e810
 2016-04-25 22:39:42 +00:00
drh
6c96358601 Remove an obsolete comment from the pager. No code changes. 
FossilOrigin-Name: 36f97ca8874a03ac8699f44fe0da95b0be507cc7
 2016-04-25 19:28:34 +00:00
drh
835f22deda Fix some unreachable branches in the pager. 
FossilOrigin-Name: 3ae44770fdecc40c8097f1de0b504f36585a2232
 2016-04-25 19:20:56 +00:00
drh
dc7adf20bb Merge bug fix from trunk. 
FossilOrigin-Name: a905d5e08de3f3c60b667d840b5995911372647d
 2016-04-25 15:03:49 +00:00
drh
b1ec87afdb When checking for the WHERE-clause push-down optimization, verify that 
all terms of the compound inner SELECT are non-aggregate, not just the
last term.  Fix for ticket [f7f8c97e97597].

FossilOrigin-Name: ec215f94ac9748c0acd82af0cc9e7a92249462f9
 2016-04-25 02:20:10 +00:00
drh
d456e92ce0 Merge the temporary directory search algorithm fix from trunk. 
FossilOrigin-Name: 9b8fec60d8e576cd09e1d075a59bfad1c6169d7a
 2016-04-23 21:16:55 +00:00
drh
23ee893752 Fix the fix to the temporary directory search algorithm so that it continues 
to return "." as a fallback if that directory has the correct permissions.

FossilOrigin-Name: b38fe522cfc971b37ca04e7b63a92bbb6e0b01e1
 2016-04-23 20:59:23 +00:00
drh
7ff5d522bf Merge the latest trunk changes. 
FossilOrigin-Name: 84da122dd6e70ed603fea781dca204ae2f668c53
 2016-04-23 19:55:59 +00:00
dan
2d36f065e2 Fix a problem with mixing temp-files and mmap-mode. 
FossilOrigin-Name: c80c5c62b2e2c5e47e0839f8e2d5b6341ca4a249
 2016-04-23 17:24:16 +00:00