/ Timeline
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

100 most recent check-ins tagged with "experimental"

2014-10-10
20:52
Account for the ASC/DESC properties of ORDER BY expressions when using the same index for GROUP BY and ORDER BY. Candidate fix for [ba7cbfaedc]. Closed-Leaf check-in: 2a957396 user: dan tags: experimental
2014-08-29
11:24
Add the sqlite3VdbeChangeDest() routine that can be used to eliminate OP_Move opcodes. Closed-Leaf check-in: 8c57bcc3 user: drh tags: experimental
2014-08-22
14:56
Handle the 4-byte integer case in the stackless routine. Closed-Leaf check-in: 3f55484e user: drh tags: experimental
14:34
Get the sqlite3VdbeSerialGet() routine to run faster by avoiding the use of local variables. check-in: 8267d821 user: drh tags: experimental
2014-03-03
21:46
Fix a couple of harmless compiler warnings. Closed-Leaf check-in: fcf480cc user: drh tags: experimental
20:48
Avoid a buffer overread in vdbeCompareRecordInt() that might occur if the database is corrupt. check-in: 7c0b4381 user: dan tags: experimental
19:29
Fix a typo in a comment. No changes to code. check-in: 1f4991ab user: drh tags: experimental
18:25
Fix compiler warnings. check-in: ba899372 user: drh tags: experimental
17:48
Merge latest trunk changes. check-in: 1d603564 user: dan tags: experimental
15:13
Fix a harmless compiler warning. check-in: d7f6837e user: drh tags: experimental
14:45
Merge latest trunk changes. check-in: e00ed717 user: dan tags: experimental
2014-03-01
19:45
Merge trunk changes. check-in: 9c1747b5 user: dan tags: experimental
19:44
Remove the vdbeRecordCompareLargeHeader function. Fix some other details. check-in: 3861e853 user: dan tags: experimental
2014-02-28
18:39
Update some test cases that deal with corrupt databases. check-in: 3a09f560 user: dan tags: experimental
09:48
Minor tweak to vdbeRecordCompareInt(). check-in: 284bde0e user: dan tags: experimental
2014-02-27
20:52
Merge in latest trunk changes. check-in: 8f30b095 user: dan tags: experimental
20:44
Further changes to sqlite3VdbeRecordCompare(). check-in: 57089374 user: dan tags: experimental
2014-02-25
21:01
Attempt to speed up sqlite3VdbeRecordCompare() by various means. This code is in an interim state. check-in: 85206e0b user: dan tags: experimental
2013-03-08
07:10
If SQLITE_OMIT_UTF16 is defined, avoid setting the 'enc' field of Schema objects to any value except SQLITE_UTF8. Otherwise, assert() statements may fail or spurious SQLITE_NOMEM errors may be returned at the vdbe level later on. Closed-Leaf check-in: 69746ef7 user: dan tags: experimental
2013-03-05
15:27
Do not attempt to set the permissions on an existing journal or wal file. Do this only immediately after creating a new file (or opening one zero bytes in size). Closed-Leaf check-in: 1d808690 user: dan tags: experimental
15:09
Add extended error code SQLITE_READONLY_ROLLBACK. Returned if a read-only connection cannot read the database because doing so would require it to roll back a hot-journal. check-in: 39247b14 user: dan tags: experimental
2011-12-16
13:24
Experimental fix for [a1fa75cbdd]. Closed-Leaf check-in: 6492af76 user: dan tags: experimental
2011-12-13
12:10
This branch merged with nx-devkit and from there into trunk. Was: In the multiplexor, instead of generating a unique file-name when SQLite opens a temp file, allow the underlying VFS to generate a different temp file for each chunk. Given the changes to the xFileSize method, it is no longer necessary for the different chunks of a temp file to use the same base name. Closed-Leaf check-in: 199f52bc user: dan tags: experimental
11:15
Change the way IO errors are handled in the xFileSize method of the multiplexor VFS. Add test file multiplex3.test. check-in: 255d2149 user: dan tags: experimental
2011-08-29
02:49
About a 1% overall performance improvement by using a macro to avoid no-op calls to sqlite3MemReleaseExternal(). Closed-Leaf check-in: ff71d20a user: drh tags: experimental
02:16
Small performance improvement to OP_Column. check-in: b6b73a74 user: drh tags: experimental
2011-08-28
02:15
About a 3% improvement in the performance of OP_Column. check-in: edff9d4a user: drh tags: experimental
00:19
Correctly display P4_ADVANCE values on opcode traces. Mark an always-taken branch in OP_Column as such. check-in: 087dc960 user: drh tags: experimental
2011-08-27
18:48
Experimental changes to improve the performance of OP_Next. check-in: 1a249845 user: dan tags: experimental
2011-08-12
16:34
Update Makefile.in and configure to account for new source file vdbesort.c. Closed-Leaf check-in: 69e4b41d user: dan tags: experimental
16:30
Merge latest trunk changes into experimental branch. check-in: 7e515055 user: dan tags: experimental
16:11
Remove an unused parameter from a function in vdbesort.c. Fix some comments and other details in the same file. check-in: 1a8498d8 user: dan tags: experimental
15:02
Add the SQLITE_OMIT_MERGE_SORT pre-processor directive. To omit the code in vdbesort.c. check-in: 4ced2394 user: dan tags: experimental
11:59
Add tests to improve coverage of vdbesort.c. check-in: 87a15917 user: dan tags: experimental
2011-08-08
19:26
Remove redundant parameter from vdbeSorterInitMerge() in vdbesort.c. check-in: eec8c0df user: dan tags: experimental
16:44
Add fault-injection and other tests (and fixes) to improve coverage of vdbesort.c. check-in: 0e6defa6 user: dan tags: experimental
2011-08-06
15:09
Fix a problem with building large indexes introduced by the previous commit. check-in: 038ec9ea user: dan tags: experimental
12:01
In temp files used for merge sorting, store the size of each packed-memory-array at the start of the array itself. This is to avoid having to store the offsets of all arrays in the (potentially very large) file in main-memory. check-in: 8051c176 user: dan tags: experimental
2011-08-05
11:49
Minor internal changes to vdbesort.c. Also, default to merging lists together 16 at a time. check-in: 9ddc324a user: dan tags: experimental
2011-08-04
18:43
Fix a comment in vdbesort.c. check-in: db8518ca user: dan tags: experimental
12:14
Change to using packed-memory-arrays instead of b-trees when performing an offline merge-sort for CREATE INDEX. This makes it easier to control the number of disc seeks required when merging. check-in: a4770d07 user: dan tags: experimental
2011-08-02
10:56
Minor fixes to vdbesort.c code in preparation for a major rework. check-in: 7f339c0e user: dan tags: experimental
2011-07-12
14:28
Experimental support for speeding up CREATE INDEX commands using an offline merge sort. check-in: 30dbf0fe user: dan tags: experimental
2011-07-02
06:44
Fix a broken assert() in where.c. Closed-Leaf check-in: 090b2917 user: dan tags: experimental
2011-07-01
18:43
Merge latest trunk changes with experimental branch. check-in: e56be74e user: dan tags: experimental
18:26
Improve use of indexes to optimize DISTINCT queries. check-in: 6c202ea0 user: dan tags: experimental
14:21
Improvements and tests for detection of redundant DISTINCT qualifiers. check-in: 7337293c user: dan tags: experimental
2011-06-30
20:17
Experimental changes to improve optimization of DISTINCT queries. check-in: f7ba0219 user: dan tags: experimental
2011-04-15
13:29
Add retry logic to GetFileAttributesEx() on windows. Closed-Leaf check-in: 1cca9a49 user: drh tags: experimental
2010-12-20
15:51
Add additional DBSTATUS options for measuring the hit and miss rates against the lookaside memory pool - information useful in tuning the lookaside size. Currently experimental pending analysis of performance impact. Closed-Leaf check-in: 34613f1d user: drh tags: experimental
2010-11-13
16:42
Change the EXPLAIN QUERY PLAN output to use "USING INDEX" instead of "BY INDEX", and to use "SEARCH" instead of "SCAN" for loops that are not full-table scans. Closed-Leaf check-in: 6611b76b user: dan tags: experimental
2010-11-12
17:41
Add EXPLAIN QUERY PLAN test cases to check that the examples in the documentation work. check-in: 85fdad85 user: dan tags: experimental
15:36
Reduce the number of branches that need to be tested in the explainIndexRange() function of where.c. check-in: 6fdae9a6 user: drh tags: experimental
2010-11-11
17:48
Use "COMPOUND" instead of "COMPOSITE" in the EXPLAIN QUERY PLAN output to describe UNION, UNION ALL, EXCEPT and INTERSECT operations. check-in: 28643b85 user: dan tags: experimental
16:46
Add a row of EXPLAIN QUERY PLAN output for each composite select operation (UNION, EXCEPT etc.) in the query. check-in: 00fb8468 user: dan tags: experimental
11:43
Fix a bug in the EXPLAIN QUERY PLAN code. check-in: 7ae06895 user: dan tags: experimental
10:36
Modifications to test cases to account for new EXPLAIN QUERY PLAN output. check-in: 30904ef8 user: dan tags: experimental
2010-11-09
17:49
Merge with latest trunk changes. check-in: 4b5c93bc user: dan tags: experimental
17:35
Add missing comments and fix other issues with routines used by new EQP features. check-in: 925f35c5 user: dan tags: experimental
14:49
Further enhancements and fixes for explain query plan. check-in: 73c93f5a user: dan tags: experimental
2010-11-08
19:01
Experimental changes to EXPLAIN QUERY PLAN. check-in: f4747eb8 user: dan tags: experimental
2010-11-05
00:00
Fix the Makefile.in so that it works with the multiplexer VFS. Closed-Leaf check-in: 54e2efb6 user: drh tags: experimental
2010-11-04
21:14
Back out an unintended change to permutations.test. check-in: 57fe3535 user: drh tags: experimental
21:13
Another change for testing on Windows. check-in: 2625886b user: shaneh tags: experimental
21:03
Fix the main.mk makefile to include test_multiplex.c for testfixture. check-in: c27c5118 user: drh tags: experimental
20:50
First attempt at a sharding VFS to split large DBs. check-in: dd4dc8a4 user: shaneh tags: experimental
20:47
Fix icon size so it's really 32x32. check-in: 62c494f6 user: shaneh tags: experimental
20:46
Updates for Windows. check-in: cc9d9a12 user: shaneh tags: experimental
2010-10-27
16:52
Fix a buffer overread in fts3 that can occur if the database is corrupt. Closed-Leaf check-in: 84194c41 user: dan tags: experimental
10:55
In fts4, store the total number of bytes of for all records in the table in the %_stat table. check-in: 941647d1 user: dan tags: experimental
2010-10-26
18:42
Structural coverage tests for vdbeblob.c. Including experimental new API sqlite3_blob_reopen(). check-in: 97c6b261 user: dan tags: experimental
11:56
Add missing header comments for changes related to the experimental sqlite3_blob_reopen() API. check-in: d1cc5c93 user: dan tags: experimental
07:14
More coverage tests for fts3.c. check-in: 7a2f2864 user: dan tags: experimental
2010-10-25
19:01
Further improvements to coverage of fts3.c. Fixes for bugs revealed by the same. check-in: 918b6092 user: dan tags: experimental
12:47
Test coverage improvements for fts3.c. check-in: a8b1d998 user: dan tags: experimental
09:01
Add test for matchinfo when a phrase includes some common tokens. check-in: 80a54ebc user: dan tags: experimental
2010-10-23
19:07
Fixes for the matchinfo() function related to FTS4 common token handling. check-in: deb80eac user: dan tags: experimental
2010-10-22
19:03
Add new test file fts3defer2.test. check-in: 5a4d5bfc user: dan tags: experimental
16:44
Add missing comments and fix compiler warnings in new FTS3/4 code. Other minor fixes too. check-in: 1c9c70fe user: dan tags: experimental
2010-10-21
15:49
Merge trunk changes into experimental branch. check-in: fd1e5cad user: dan tags: experimental
2010-10-20
18:56
Updates to FTS4 to improve performance and make more accurate cost estimates for prefix terms. check-in: d0a450ce user: dan tags: experimental
2010-10-19
14:08
Experimental changes to fts4 to try to selectively avoid loading very large doclists. check-in: 5ae0ba44 user: dan tags: experimental
2010-09-30
20:11
Fix some matching issues in enc4.test affected by TCL versions. Closed-Leaf check-in: dd6d61a9 user: shaneh tags: experimental
18:30
Fix memory leak in enc4.test script. check-in: bfc294ae user: shaneh tags: experimental
18:19
Additional encoding tests. check-in: c7f93636 user: shaneh tags: experimental
18:12
Remove unnecessary calls to memAboutToChange() in vdbe.c. An affinity change no longer invalidates shallow copies. check-in: afb0fd0b user: drh tags: experimental
17:33
Do correct affinity transformations on floating point values which have a decimal point at the beginning or end of the mantissa. Ticket [3998683a16a7076e08f5]. check-in: ca154f97 user: drh tags: experimental
16:51
Changes to remove sqlite3FitsIn64Bits(). check-in: 43fef1ca user: shaneh tags: experimental
14:48
Fix the handling of default values for ALTER TABLE ADD COLUMN columns so that is able to deal with negative numbers, including large negative numbers. Ticket [8454a207b9fd2243c4] check-in: ce6cc16e user: drh tags: experimental
00:50
Rework the text to numeric conversion routines so that they work with either UTF8 or UTF16 and do not require a NULL terminator. This allowed text to numeric conversion without reallocating the string. check-in: 14eed3a0 user: drh tags: experimental
2010-09-24
09:32
Add experimental branch disallowing VACUUM when there are one or more active SQL statements. check-in: c1ebcacd user: dan tags: experimental
2010-09-01
15:11
Fix the TCL interface to test_quota.c so that it works with empty callback scripts. Closed-Leaf check-in: 19e95f63 user: drh tags: experimental
14:58
Variable name and comment changes to test_quota.c for clearer presentation. check-in: 38ed1992 user: drh tags: experimental
14:45
Make all private routines in test_quota.c begin with "quota". Fix a test_quota.c segfault when setting a zero-quota. check-in: c0d0fc3a user: drh tags: experimental
14:35
Add the sqlite3_quota_dump test command. Add a destructor argument on the sqlite3_quota_set() interface. check-in: 7a624b5a user: drh tags: experimental
13:09
Clean up comments in the test_quota.c source file. check-in: c1eec7db user: drh tags: experimental
12:50
Update the quota shim so that when the same file is opened multiple times, its size only counts against the quota once. check-in: f5d26380 user: drh tags: experimental
11:40
Add file test_quota.c, demonstrating how file-system quotas may be implemented as a VFS wrapper. check-in: 383eb87b user: dan tags: experimental
2010-08-10
15:46
Fix a bug in pager.c causing it to omit the xSync() call required following a hot-journal rollback. Closed-Leaf check-in: 42ba43ac user: dan tags: experimental
09:58
Add variable pager.dbHintSize, used to limit the number of calls made to the xFileControl(FCNTL_SIZE_HINT) method. check-in: eb3ac895 user: dan tags: experimental