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100 ancestors of [37e60d21]

2014-05-08
22:08
Fix a memory leak of the temporary read buffer. check-in: 37e60d21 user: mistachkin tags: winPreCache
22:05
Update comments and only include the thread routine when required. check-in: a60c545f user: mistachkin tags: winPreCache
22:01
Experimental changes to pre-cache a database file prior to it being fully opened. check-in: 38cbcedb user: mistachkin tags: winPreCache
22:01
Fix static variable declaration issue on Windows. check-in: a41d2969 user: mistachkin tags: threads
2014-05-06
16:21
Add a little extra variety to the tests in sort4.test. check-in: 7de6aee6 user: dan tags: threads
15:38
Re-implement the core of the multi-threaded sorter tests in sort4.test using C. Run each test in sort4.test ten times, or repeat all tests for 300 seconds as part of the "multithread" permutation test. check-in: 208b2b04 user: dan tags: threads
2014-05-05
20:03
Add test file sort4.test, containing brute force tests for the multi-theaded sorter. check-in: 9cc364c4 user: dan tags: threads
15:58
Fix a race condition in the sorter code. check-in: 2d2edfe5 user: dan tags: threads
09:08
Add tests so that the "coverage-sorter" test permutation covers all branches in vdbesort.c. Fix a few minor problems in the same file. check-in: bde28b70 user: dan tags: threads
2014-05-03
20:43
Add an extra fault-injection test to sortfault.test. Remove an unreachable branch from vdbesort.c. check-in: a33a366b user: dan tags: threads
19:33
Fix a race condition in the sorter. check-in: 32ccf3ae user: dan tags: threads
14:28
Fix a problem in the sorter causing it to return spurious SQLITE_NOMEM errors when configured to use memsys3 or memsys5. check-in: 3a66c4e1 user: dan tags: threads
13:53
Get SQLITE_MUTEX_STATIC_APP1 and _APP2 working for the debugMutex implementation. check-in: f49ba1c9 user: drh tags: threads
12:00
Add two new static mutexes, SQLITE_MUTEX_STATIC_APP1 and _APP2, for use by the application program. First intended use is in test programs for the memory allocation logic where one does not want to allocating a _FAST or _RECURSIVE mutex since that would involve using the memory allocation system under test. check-in: 13686035 user: drh tags: threads
11:22
Add the SQLITE_DEFAULT_WORKER_THREADS compile-time option. Fix a NULL-pointer dereference that can occur following OOM. check-in: e0dea89b user: drh tags: threads
2014-05-02
19:12
Fix typo in Windows makefile. Make sure the WaitForSingleObjectEx system call is always available. check-in: d7ed529f user: mistachkin tags: threads
18:46
Do not run the vdbeRecordCompareDebug() assert if pKeyInfo->db is NULL since in that case there would be no way to check for a memory allocation failure. check-in: 63ed2d6a user: drh tags: threads
18:05
Merge orderby-planning with this branch. check-in: d9549de3 user: dan tags: threads
17:33
Simplify assert() statements used to verify correct operation of record comparison routines. check-in: 3300d62d user: drh tags: orderby-planning
17:12
Fix some broken asserts in btree.c and vdbeaux.c that may fail following an OOM error. check-in: e15f4706 user: dan tags: threads
16:22
Failure to extend a temp file for use with mmap() in vdbesort.c is benign. check-in: d4d39638 user: drh tags: orderby-planning
16:03
Remove a faulty assert() from vdbesort.c. check-in: d95d68aa user: dan tags: threads
15:25
Fix a faulty assert() statement. check-in: 9196ce40 user: drh tags: orderby-planning
13:09
Merge latest trunk enhancements and fixes into the orderby-planning branch. check-in: 84862d3a user: drh tags: orderby-planning
00:09
Add a comment explaining why WhereLoop cost adjustments are omitted for skip-scan loops. check-in: 3bc43594 user: drh tags: trunk
2014-05-01
20:26
Fix an obscure problem to do with temp register allocation that could occur if more than one simple SELECT within a compound SELECT uses a partial sort. check-in: 427409ae user: dan tags: trunk
20:24
Add #ifdefs for test coverage. Add a testcase(). check-in: be2702ce user: drh tags: trunk
10:19
Update a test case in wal2.test that explicitly corrupts a checksum in the wal file to account for the fact that the first byte of said checksum may initially be 0xFF. check-in: 2b935bde user: dan tags: trunk
2014-04-30
18:11
Fix a problem in calculating the costs of "OR" scans. check-in: 9bbca48b user: dan tags: trunk
15:22
Modify the way the costs of various query plans are estimated. If the user supplies a likelihood() value (or equivalent) on an indexed WHERE constraint, use it to estimate the number of index rows visited. check-in: 90e36676 user: dan tags: trunk
15:00
Add text to the header comment of whereLoopAddBtree() describing how the costs of various b-tree loops are estimated. Closed-Leaf check-in: 05e6e16c user: dan tags: experimental-costs
14:53
Update a couple of test cases to account for the fact that this branch prefers an index scan and partial sort over a full-table scan and full external sort. check-in: 9b975bf3 user: dan tags: experimental-costs
14:47
Fix a couple of out-of-date comments in where.c. check-in: eefeda32 user: dan tags: experimental-costs
14:22
Improved rendering of LogEst values corresponding to real values near 0.0 in the tool/logest.c utility program. check-in: 32910c8c user: drh tags: experimental-costs
13:19
Fix long-standing typos in comments. check-in: b9f91317 user: drh tags: experimental-costs
2014-04-29
19:01
Test that the default values used when sqlite_stat1 data is not available are calculated correctly. Fixes for the same. check-in: e2d42f90 user: dan tags: experimental-costs
16:46
Merge trunk changes into this branch. check-in: d74299f0 user: dan tags: experimental-costs
16:10
Ignore likelihood() values on indexed IPK lookups. check-in: 5bb7757a user: dan tags: experimental-costs
12:01
Fix a test case so that it updates sqlite_stat1 consistently. check-in: 2dc5a0b5 user: dan tags: experimental-costs
2014-04-28
20:11
Do not reduce the number of rows scanned at all for "IS NOT NULL" constraints. Fix a bug in calculating the number of rows visited by scans of partial indicies. check-in: a8ae93f0 user: dan tags: experimental-costs
19:34
The trunk assumes that an open range constraint on an indexed term (col>?) term matches 1/4 of the indexed rows, and that a closed constraint (col BETWEEN ? AND ?) matches 1/64. Change this branch to do the same. check-in: 4047ac75 user: dan tags: experimental-costs
17:56
Add the sqlite3_rtree_query_callback() API to the RTree virtual table. (Cherrypick from the sessions branch.) check-in: af2cbe64 user: drh tags: trunk
15:11
Update unordered.test to take into account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. check-in: 20f468df user: dan tags: experimental-costs
12:08
Add an extra column to a table in analyze9.test to give the planner a little more reason to select an index. check-in: 1b95544f user: dan tags: experimental-costs
10:00
Update test script analyze3.test to account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. check-in: 35f46a55 user: dan tags: experimental-costs
09:35
Modify internal function whereLoopAdjustCost() so that it does not prefer a skip-scan over a regular index scan even if the regular scan uses a subset of the WHERE terms used by the skip-scan. check-in: 88a5758d user: dan tags: experimental-costs
08:49
Fix an error in estimating of the number of rows visited by a range scan. check-in: d491de62 user: dan tags: experimental-costs
2014-04-26
20:21
Fix an sqlite3_stmt_status() problem caused by recent changs on this branch. check-in: dee20409 user: dan tags: experimental-costs
19:23
Update requirements marks to fix typos in the requirements text. No changes to code. check-in: f5a26365 user: drh tags: trunk
17:52
Allow the xfer optimization to proceed if the DEFAULT on the very first column of the two tables is different. This is a refinement of the fix for ticket [f67b41381a]. check-in: 349f4834 user: drh tags: trunk
14:07
Avoid transfering records between tables unless the default values for all columns are the same. Fix for [f67b41381a]. check-in: f8c4c495 user: dan tags: trunk
2014-04-25
20:22
If the user provides likelihood() data for a WHERE clause term used as part of an index key, have the planner use it when calculating the expected number of rows visited by the loop. check-in: c51efaa5 user: dan tags: experimental-costs
17:37
Add test cases to ensure correct operation of joins with a virtual table that include DISTINCT and ORDER BY clauses. Verification for ticket [388d01d4bb8f9]. check-in: 5ada136f user: drh tags: trunk
15:01
Store values loaded from the stat1 table as logarithmic values in memory. check-in: 1bd74c49 user: dan tags: experimental-costs
14:42
Make sure ORDER BY clauses on joins that involve virtual tables and that have a DISTINCT clause work correctly. This is a candidate fix for ticket [388d01d4bb8f9]. Test cases for that ticket will be checked in separately. check-in: 17113812 user: drh tags: trunk
12:35
When VDBE_PROFILE is enabled, ignore negative opcode times, which sometimes occur, perhaps due to context swaps. check-in: 4e88042f user: drh tags: trunk
2014-04-24
20:04
Changes to the way the planner calculates the costs of various table and index scans. Some test cases still failing. check-in: c5a6ec0a user: dan tags: experimental-costs
16:25
Improved header comment on the vdbesort.c module. No changes to code. check-in: bf09ce24 user: drh tags: orderby-planning
15:06
Reopen the orderby-planning branch and merge in the latest trunk enhancements and fixes. check-in: 6077ddcd user: drh tags: orderby-planning
12:28
Improvements to comments. Store some extra information in SqliteThread that is useful for debugging. check-in: 9fb5e212 user: drh tags: threads
2014-04-23
12:57
Merge all recent trunk changes into the threads branch. check-in: e2c9f71a user: drh tags: threads
2014-04-21
13:36
Comment tweaks on the test case for the [b75a9ca6b0] bug fix. check-in: 65d2544a user: drh tags: trunk
13:21
Avoid discarding an ORDER BY clause in the case where an identical GROUP BY clauses uses an index to group, but not sort, the rows. Fix for [b75a9ca6b0]. check-in: de9a490f user: dan tags: trunk
2014-04-18
22:20
Clean up the proper-subset cost adjustment logic to make it more compact and easier to read and so that full branch test coverage is more easily obtained. check-in: 9a5d38c7 user: drh tags: trunk
13:57
Add to speedtest1.c the --threads option for setting the SQLITE_CONFIG_WORKER_THREADS configuration. check-in: 5fce40c4 user: drh tags: threads
13:40
Fix harmless compiler warnings. check-in: f8f72ecb user: drh tags: threads
12:38
Merge recent trunk changes into the threads branch. check-in: 8729aa3e user: drh tags: threads
00:49
Add the SQLITE_RUNTIME_BYTEORDER compile-time option to force SQLite to check the processor byte-order at run-time. Add additional compile-time byte order checks for ARM, PPC, and SPARC. check-in: 2c536387 user: drh tags: trunk
00:06
Add the SQLITE_TESTCTRL_BYTEORDER test control to interrogate SQLite's notion of the processor byte order and whether the byte order is known at compile-time or determined at run-time. check-in: 9c696196 user: drh tags: trunk
2014-04-17
08:57
Fix build problems in vdbesort.c. Add further comments and changes to make things easier to understand. check-in: 12b190db user: dan tags: threads
2014-04-16
19:04
Clarify the purpose of the nField argument passed to sqlite3VdbeSorterInit(). check-in: c0c8cff1 user: dan tags: threads
17:41
Change the name of vdbeIncrInit2 to vdbePmaReaderIncrInit. Add a header comment to the same function. check-in: 6622d876 user: dan tags: threads
16:43
Rework the way trees of MergeEngine objects are built in vdbesort.c to make it easier to follow. Fix memory leaks that could follow an OOM or IO error. Add various comments to explain functions in vdbesort.c. check-in: 69026ec7 user: dan tags: threads
2014-04-15
20:52
Fix some problems to do with OOM conditions in vdbesort.c. Some problems remain. check-in: 2f94f9ce user: dan tags: threads
19:52
Fix further code and documentation issues in vdbesort.c. check-in: d03f5b86 user: dan tags: threads
2014-04-14
19:48
Make sure the undocumented sqlite_rename_parent() function does not crash even if it is invoked with NULL arguments. Ticket [264b970c4379fd4b94] check-in: c6fa8d0d user: drh tags: trunk
19:23
Allow the sorter to begin returning data to the VDBE as soon as it is available, instead of waiting until all keys have been sorted. check-in: cb0ab20c user: dan tags: threads
18:41
Improve performance in single-threaded mode by having the final merge pass keys directly to the VDBE, instead of going via a final PMA. Closed-Leaf check-in: 02610cd9 user: dan tags: threads-experimental
08:45
Minor fixes so that builds with SQLITE_MAX_WORKER_THREADS=0 work. check-in: e400bbbf user: dan tags: threads-experimental
07:30
Improve use of multiple threads in sqlite3VdbeSorterRewind(). check-in: e1bdc4b8 user: dan tags: threads-experimental
2014-04-13
19:28
Remove the unused second argument from sqlite3ExprCachePop(). Add an ALWAYS() on an always-true conditional in sqlite3VdbeResolveLabel(). check-in: ab23abf3 user: drh tags: trunk
19:15
Make sure column cache elements are cleared correctly when jumping over code for key generation in a partial index. Fix for ticket [2ea3e9fe6379fc3f6]. check-in: 3122b836 user: drh tags: trunk
2014-04-12
19:34
Fix many issues with new code. check-in: 62c406a0 user: dan tags: threads-experimental
2014-04-11
19:43
Avoid having the sorter merge too many PMAs at a time when incrementally merging data following a SorterRewind(). check-in: 98bf0307 user: dan tags: threads-experimental
2014-04-10
02:24
Modify the OR-clause handling so that it can safely deal with OR-clause with 17 or more terms. Fix for ticket [10fb063b1179be53ea0b53bb]. check-in: a67b5312 user: drh tags: trunk
2014-04-09
20:04
Experimental multi-threaded sorting changes to allow the sorter to begin returning items to the VDBE before all data is sorted. check-in: f9d5e09a user: dan tags: threads-experimental
2014-04-04
22:44
Fix harmless compiler warnings. check-in: e54dded2 user: drh tags: threads
21:40
Fix typo in a Windows threading support routine. check-in: 5e3dfa27 user: mistachkin tags: threads
18:49
Performance improvements when reading large blobs, especially if SQLITE_DIRECT_OVERFLOW_READ is defined. check-in: 2312eb6a user: drh tags: trunk
18:37
Merge the latest trunk changes into the threads branch. check-in: 39ac79cf user: drh tags: threads
18:20
Merge changes to the query planner that strive to ensure that any index usage that is a proper subset of some other index usage always has a slightly higher cost. check-in: 683dd379 user: drh tags: trunk
14:12
Ensure the "PRAGMA journal_mode=WAL" works coming from any other journal_mode with ATTACH-ed databases. check-in: e54330b4 user: drh tags: trunk
07:52
Add test file sort3.test, which should have been part of commit [9d3351b8d7]. check-in: dceed2c8 user: dan tags: threads
02:13
Change vdbeSorterExtendFile() so that it makes a best effort to create the PMA file of the desired size, but does not return an error if unable. check-in: 217814bc user: drh tags: threads
2014-04-03
16:42
Merge all recent changes from trunk. check-in: a0910079 user: drh tags: threads
16:29
Use OP_Copy instead of OP_SCopy when moving results out of a subquery, to prevent the subquery results from changing out from under the outer query. Fix for ticket [98825a79ce1456]. Problem introduced by check-in [1e64dd782a126f48d78]. check-in: d5513dfa user: drh tags: trunk
16:25
Fix an integer overflow problem in the sorter. check-in: 9d3351b8 user: dan tags: threads
14:31
Fix a typo in the "Synopsis:" comment for the OP_VFilter opcode. check-in: 48ecdd4a user: drh tags: trunk
14:29
Fix minor errors causing compilation to fail with SQLITE_MAX_WORKER_THREADS set to a value greater than zero. check-in: 0561272a user: dan tags: threads
02:54
Refactor local object and method names in vdbesort.c so that their names more closely reflect their actual use. check-in: d284e30e user: drh tags: threads
00:32
In the command-line shell, run set writable_schema before running the ".clone" command. check-in: 9d2ae634 user: drh tags: trunk