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100 most recent check-ins tagged with "experimental"
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2014-10-10
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| 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) | |
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2014-08-29
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| 11:24 | Add the sqlite3VdbeChangeDest() routine that can be used to eliminate OP_Move opcodes. (Closed-Leaf check-in: 8c57bcc3 user: drh tags: experimental) | |
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2014-08-22
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| 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) | |
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2014-03-03
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| 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) | |
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2014-03-01
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| 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) | |
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2014-02-28
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| 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) | |
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2014-02-27
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| 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) | |
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2014-02-25
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| 21:01 | Attempt to speed up sqlite3VdbeRecordCompare() by various means. This code is in an interim state. (check-in: 85206e0b user: dan tags: experimental) | |
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2013-03-08
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| 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) | |
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2013-03-05
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| 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) | |
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2011-12-16
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| 13:24 | Experimental fix for [a1fa75cbdd]. (Closed-Leaf check-in: 6492af76 user: dan tags: experimental) | |
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2011-12-13
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| 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) | |
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2011-08-29
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| 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) | |
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2011-08-28
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| 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) | |
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2011-08-27
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| 18:48 | Experimental changes to improve the performance of OP_Next. (check-in: 1a249845 user: dan tags: experimental) | |
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2011-08-12
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| 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) | |
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2011-08-08
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| 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) | |
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2011-08-06
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| 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) | |
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2011-08-05
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| 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) | |
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2011-08-04
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| 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) | |
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2011-08-02
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| 10:56 | Minor fixes to vdbesort.c code in preparation for a major rework. (check-in: 7f339c0e user: dan tags: experimental) | |
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2011-07-12
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| 14:28 | Experimental support for speeding up CREATE INDEX commands using an offline merge sort. (check-in: 30dbf0fe user: dan tags: experimental) | |
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2011-07-02
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| 06:44 | Fix a broken assert() in where.c. (Closed-Leaf check-in: 090b2917 user: dan tags: experimental) | |
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2011-07-01
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| 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) | |
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2011-06-30
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| 20:17 | Experimental changes to improve optimization of DISTINCT queries. (check-in: f7ba0219 user: dan tags: experimental) | |
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2011-04-15
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| 13:29 | Add retry logic to GetFileAttributesEx() on windows. (Closed-Leaf check-in: 1cca9a49 user: drh tags: experimental) | |
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2010-12-20
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| 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) | |
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2010-11-13
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| 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) | |
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2010-11-12
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| 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) | |
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2010-11-11
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| 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) | |
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2010-11-09
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| 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) | |
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2010-11-08
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| 19:01 | Experimental changes to EXPLAIN QUERY PLAN. (check-in: f4747eb8 user: dan tags: experimental) | |
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2010-11-05
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| 00:00 | Fix the Makefile.in so that it works with the multiplexer VFS. (Closed-Leaf check-in: 54e2efb6 user: drh tags: experimental) | |
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2010-11-04
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| 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) | |
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2010-10-27
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| 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) | |
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2010-10-26
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| 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) | |
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2010-10-25
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| 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) | |
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2010-10-23
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| 19:07 | Fixes for the matchinfo() function related to FTS4 common token handling. (check-in: deb80eac user: dan tags: experimental) | |
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2010-10-22
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| 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) | |
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2010-10-21
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| 15:49 | Merge trunk changes into experimental branch. (check-in: fd1e5cad user: dan tags: experimental) | |
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2010-10-20
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| 18:56 | Updates to FTS4 to improve performance and make more accurate cost estimates for prefix terms. (check-in: d0a450ce user: dan tags: experimental) | |
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2010-10-19
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| 14:08 | Experimental changes to fts4 to try to selectively avoid loading very large doclists. (check-in: 5ae0ba44 user: dan tags: experimental) | |
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2010-09-30
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| 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) | |
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2010-09-24
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| 09:32 | Add experimental branch disallowing VACUUM when there are one or more active SQL statements. (check-in: c1ebcacd user: dan tags: experimental) | |
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2010-09-01
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| 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) | |
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2010-08-10
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| 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) | |