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100 check-ins occurring around 90411a28168f6dac.
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2016-06-04
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| 16:33 | Fix up speedtest1.c so that it will compile and run on SQLite versions prior to 3.6.18 (circa 2009-09-11). (check-in: 9583c0fb user: drh tags: trunk) | |
| 13:57 | Remove an unreachable branch in the UNIQUE constraint parsing. (check-in: 313e990c user: drh tags: trunk) | |
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2016-06-03
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| 18:59 | The OR optimization is usable on virtual tables with LIKE, REGEXP and/or GLOB terms in the WHERE clause. (check-in: fa3a89fc user: drh tags: trunk) | |
| 18:44 | Add support for virtual tables using a WITHOUT ROWID schema. This merge also includes enhancements to the CSV extension, which is used for testing of the new WITHOUT ROWID virtual table mechanism. (check-in: aa7e9d0c user: drh tags: trunk) | |
| 18:21 | Fix a memory leak when a WITHOUT ROWID eponymous virtual table is used. (Closed-Leaf check-in: 31b83a7d user: drh tags: without-rowid-vtab) | |
| 17:27 | Disallow access to the rowid column on WITHOUT ROWID virtual tables. (check-in: d31c2597 user: drh tags: without-rowid-vtab) | |
| 13:35 | Enhance the sqlite3_load_extension() interface to permit extensions to return SQLITE_OK_LOAD_PERMANENTLY which will prevents unloading when the database connection closes. (check-in: 5908aa4d user: drh tags: trunk) | |
| 01:01 | Performance optimizations on the CSV virtual table. Disallow WITHOUT ROWID virtual tables that have an xUpdate method, for now. (check-in: 3134b326 user: drh tags: without-rowid-vtab) | |
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2016-06-02
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| 23:13 | Add the CSV extension to the test fixture. Fix a memory leak in the CSV extension. Add test cases for the CSV extension, including one that uses a WITHOUT ROWID virtual table participating in the OR optimization. (check-in: 95f483e8 user: drh tags: without-rowid-vtab) | |
| 17:44 | Add the data= parameter to the CSV virtual table extension. (check-in: 76919104 user: drh tags: without-rowid-vtab) | |
| 16:22 | Fix corner cases in the WITHOUT ROWID virtual table logic. (check-in: a393bbb9 user: drh tags: without-rowid-vtab) | |
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2016-06-01
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| 10:37 | Fix an issue preventing RBU vacuum from working with virtual tables. (check-in: 3bd85fa5 user: dan tags: trunk) | |
| 05:02 | Fix compilation issues with the VFS stat extension. (check-in: f6e95652 user: mistachkin tags: trunk) | |
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2016-05-31
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| 21:18 | An experimental branch with code that allows virtual tables to be declared as WITHOUT ROWID tables. This might be useful for virtual tables that model external data sources that do not have a convenient way of computing a unique rowid. The current check-in almost works, but there are still serious issues. (check-in: 49638f18 user: drh tags: without-rowid-vtab) | |
| 18:44 | Add the columns=N parameter to the CSV extension. (check-in: 28ebeadd user: drh tags: trunk) | |
| 18:08 | Add the testflags parameter to the csv extension. (check-in: b93fb2fe user: drh tags: trunk) | |
| 16:22 | Add the "csv" virtual table for reading CSV files, as an extension in the ext/misc/ subfolder. (check-in: 00d3570c user: drh tags: trunk) | |
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2016-05-30
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| 08:28 | Fix an FTS5 problem (segfault or incorrect query results) with "... MATCH 'x OR y' ORDER BY rank" queries when either token 'x' or 'y' is completely absent from the dataset. (check-in: 64ca1a83 user: dan tags: trunk) | |
| 05:45 | Minor tweaks to the bc_test1 test program. (check-in: d0d0bab4 user: dan tags: begin-concurrent) | |
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2016-05-28
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| 18:53 | Experimental change to allow virtual tables to take advantage of LIKE, REGEXP and GLOB terms that are part of OR expressions within WHERE clauses. (Closed-Leaf check-in: 242507b4 user: dan tags: vtab-experimental) | |
| 17:45 | Remove an unnecessary malloc from the vfsstat extension. (check-in: 24f258c2 user: drh tags: trunk) | |
| 17:23 | Enhance the sqlite3_load_extension() interface to permit extensions to return SQLITE_OK_LOAD_PERMANENTLY which will prevent the extensions from unloading when the database connection closes. (Closed-Leaf check-in: d3f99a5e user: drh tags: load-permanently) | |
| 15:22 | Enhance "PRAGMA compile_options" so that it shows the version of the compiler used to generate the executable, for common compilers. (check-in: 6a0f2009 user: drh tags: trunk) | |
| 15:09 | Update the amalgamation-tarball configure script so that it can use header file "readline/readline.h" with library file "libedit". (check-in: cbf72b04 user: dan tags: trunk) | |
| 15:03 | Enhance the sqlite3_load_extension() API so that the first parameter (the "db" parameter) can be NULL. An extension that is not associated with any database connection remains loaded for the life of the process. (Closed-Leaf check-in: 3a461043 user: drh tags: persistent-extensions) | |
| 14:53 | Add the vfsstat.c loadable extension - a VFS shim that measures the amount of I/O, and an eponymous virtual table that is used to extract and view the measurements. (check-in: 0987487d user: drh tags: trunk) | |
| 00:13 | Clang can define _MSC_VER in some circumstances; therefore, check for Clang first. (Closed-Leaf check-in: 3f710bc3 user: mistachkin tags: ctimeCompiler) | |
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2016-05-27
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| 21:13 | Check for Clang before GCC. (check-in: 7c2cd4b0 user: mistachkin tags: ctimeCompiler) | |
| 20:30 | Remove surplus quotation marks from the COMPILER= compile_options setting for Clang. (check-in: 5c966f20 user: mistachkin tags: ctimeCompiler) | |
| 19:34 | Remove surplus quotation marks from the COMPILER= compile_options setting for GCC. (check-in: 664c132d user: drh tags: ctimeCompiler) | |
| 18:09 | Add basic compiler information to the results of 'PRAGMA compile_options'. (check-in: d734e2df user: mistachkin tags: ctimeCompiler) | |
| 12:30 | Improvements to WHERE-clause debug tracing. Show TK_MATCH expressions and show more details on WhereTerm traces. (check-in: 71087c12 user: drh tags: trunk) | |
| 04:10 | Fix Lemon so that it actually works with -DYYSTACKDEPTH=0. (check-in: a9be4c2d user: drh tags: trunk) | |
| 01:07 | Fix the Lemon-generated parser so that it compiles with -DYYSTACKDEPTH=0. It does compile now, but there are subtle issues still. (check-in: 28d439f8 user: drh tags: trunk) | |
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2016-05-26
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| 20:56 | Add a new OP_SeekRowid opcode, that combines the functions of OP_MustBeInt and OP_NotExists. This makes the code slightly smaller and faster. (check-in: ffe80a1b user: drh tags: trunk) | |
| 20:52 | Add further instrumentation to the bc_test1.c test app. (check-in: 5528de4a user: dan tags: begin-concurrent) | |
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2016-05-25
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| 18:53 | Add the libvers.c tool in the tool/ subdirectory. (check-in: 2a41f098 user: drh tags: trunk) | |
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2016-05-24
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| 18:55 | Enhance Lemon and the parser template so that it can once again build parsers that have no unreachable branches. (check-in: 41fd46e2 user: drh tags: trunk) | |
| 18:50 | Minor change to the walcrash4.test module so that it works when SQLITE_DEFAULT_WAL_SYNCHRONOUS is set to something other than 2. (check-in: 61e239bc user: drh tags: trunk) | |
| 16:20 | Fix an obscure problem with transactions written in "PRAGMA synchronous=full" mode on systems that do not support POWERSAFE_OVERWRITE causing an xSync() call to be omitted if the last frame written by a transaction is aligned to a sector boundary. This means that if a power failure or OS crash occurs very soon after such a transaction is committed, it may be lost following system recovery. (check-in: 37de3eab user: dan tags: trunk) | |
| 00:40 | Improvements to the initialization of the push-down automoton for the Lemon-generated parser. Smaller and faster. (check-in: 3b28b68e user: drh tags: trunk) | |
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2016-05-23
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| 21:56 | Use a pointer to the top of the stack rather than an index into the stack in the Lemon-generated parser template, for about 6.6% parser performance gain. (check-in: 3c2a7705 user: drh tags: trunk) | |
| 19:02 | Avoid a minor error message when running RTREE without an sqlite_stat1 table. (check-in: 276e92f5 user: drh tags: trunk) | |
| 18:27 | Fix the rtreeG.test test case. (Closed-Leaf check-in: 9589e937 user: drh tags: tree-stat1-fix) | |
| 18:12 | Fix RTREE so that it does not run queries against the sqlite_stat1 if that table does not exist. (check-in: 48526a2f user: drh tags: tree-stat1-fix) | |
| 18:06 | Remove an extra "finish_test" from the end of rtreeC.test. (check-in: bfbb6dd8 user: drh tags: tree-stat1-fix) | |
| 16:16 | Improve the error messages generated by the rtree module when a constraint fails. (check-in: 3ad2531e user: dan tags: trunk) | |
| 16:15 | Lemon enhancement: avoid unnecessary reduce actions that convert one non-terminal into another but have no side effects. (check-in: a86e782a user: drh tags: trunk) | |
| 14:24 | Fix comment typos and improve clarity of presention in Lemon. The output should be identical. (check-in: b91a5b82 user: drh tags: trunk) | |
| 02:57 | Merge changes from trunk. (check-in: 815cc2bb user: drh tags: apple-osx) | |
| 00:10 | Update the configure script with additional hints on the location of tclConfig.sh, hints needed by the latest versions of Xcode. (check-in: 90411a28 user: drh tags: trunk) | |
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2016-05-21
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| 23:25 | More tweaks to improve the performance of the insert logic, slightly. (check-in: dec13075 user: drh tags: trunk) | |
| 20:03 | Simplify the sqlite3BtreeInsert() interface by gathering the five arguments describing the content to be inserted into the new BtreePayload structure, and thus reducing the number of parameters from eight to four. (check-in: 55f348cd user: drh tags: trunk) | |
| 19:10 | Remove some unused legacy code from the btree insert logic. (check-in: 2ce11667 user: drh tags: trunk) | |
| 18:50 | Use pthreads mutexes and conditions to synchronize threads in bc_test1. (check-in: f33aa76f user: dan tags: begin-concurrent) | |
| 12:29 | Yet another minor size reduction and performance increase in the b-tree insert logic. (check-in: 1dbaf7a1 user: drh tags: trunk) | |
| 11:23 | Small size reduction and performance increase in the sqlite3BtreeInsert() logic. (check-in: 656aa1ec user: drh tags: trunk) | |
| 00:45 | Add the shell-script used for routine performance testing. (check-in: 8e366f18 user: drh tags: trunk) | |
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2016-05-20
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| 23:51 | Add a simple TCL script for summing cachegrind information for each VDBE opcode. (check-in: 96cf821b user: drh tags: trunk) | |
| 21:40 | Another optimization on the OP_Column opcode. (check-in: 1765672c user: drh tags: trunk) | |
| 20:58 | Fix typo in comment. (check-in: 9db8f214 user: mistachkin tags: trunk) | |
| 19:51 | Slight performance improvement in the OP_Column opcode. (check-in: 5c157474 user: drh tags: trunk) | |
| 18:09 | Remove the sqlite3PagerClearCache() routine, which does not accomplish anything useful. (check-in: f250166b user: drh tags: trunk) | |
| 15:53 | Performance optimization and size reduction on the freeP4() routine. (check-in: 4dc56e86 user: drh tags: trunk) | |
| 15:24 | Increase the version number to 3.14.0 since we are already making significant code changes. (check-in: 1a0d0576 user: drh tags: trunk) | |
| 15:15 | Use sqlite3VdbeAddOp0() to code OP_Expire, to save a few bytes. (check-in: 3d55d24d user: drh tags: trunk) | |
| 14:54 | Optimizations to link list merge sort code in vdbesort.c, pcache.c, and rowset.c. Resulting binaries are 10 bytes smaller and use 0.03% fewer CPU cycles. (check-in: 9033afbb user: drh tags: trunk) | |
| 14:11 | For queries with both ORDER BY and LIMIT, if the rows of the inner loop are emitted in ORDER BY order and the LIMIT has been reached, then optimize by exiting the inner loop and continuing with the next cycle of the first outer loop. (check-in: 559733b0 user: drh tags: trunk) | |
| 13:44 | Set the NULLEQ flag on the sequence counter comparison in the ORDER BY LIMIT optimization, to avoid coverage complaints about not testing the NULL case. (Closed-Leaf check-in: ed1b30dc user: drh tags: orderby-limit) | |
| 12:22 | Autoconf configure.ac adjustment to try to get it to look for both editline and readline automatically. (check-in: 645bd696 user: drh tags: trunk) | |
| 00:21 | A few simple test cases for the ORDER BY LIMIT optimization. (check-in: 08849eab user: drh tags: orderby-limit) | |
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2016-05-19
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| 22:40 | Appears to work now. Needs test cases, more comments, and code optimization. (check-in: 990fe50c user: drh tags: orderby-limit) | |
| 22:13 | In a query with both ORDER BY and LIMIT, if the inner loop satisfies the ORDER BY then try to cut short each invocation of the inner loop once the LIMIT has been satisfied. This check-in is a partial implementation only. (check-in: 852d1eda user: drh tags: orderby-limit) | |
| 19:31 | Fixup comments on wctrlFlags value definitions. (check-in: 58b516e8 user: drh tags: trunk) | |
| 18:56 | Clean up the WHERE_* macros used for the wctrlFlags parameter on the sqlite3WhereBegin() interface, freeing up some bits to be used for other things. (check-in: d0130584 user: drh tags: trunk) | |
| 17:51 | Optimization marks in vdbe.c. No logic changes. (check-in: cf273741 user: drh tags: trunk) | |
| 16:58 | Performance improvement in the OP_Column opcode. (check-in: 4737cadc user: drh tags: trunk) | |
| 16:21 | Add test cases to test some fts3/4 edge case behaviour surrounding the '*' character. (check-in: 1f577e1f user: dan tags: trunk) | |
| 11:12 | Small size reduction and performance improvement in the OP_Column opcode. (check-in: 0d773061 user: drh tags: trunk) | |
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2016-05-18
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| 21:03 | Add the "scrub" utility program that simultaneously backs-up a live database and erases all deleted content. (check-in: c981ab2a user: drh tags: trunk) | |
| 21:01 | Omit the unnecessary WHERE_REOPEN_IDX flag in the WHERE interface. (check-in: 915416d1 user: drh tags: trunk) | |
| 20:53 | Merge the 3.13.0 release changes. (check-in: e2e9b985 user: drh tags: apple-osx) | |
| 10:57 | Version 3.13.0 (check-in: fc49f556 user: drh tags: trunk, release, version-3.13.0) | |
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2016-05-17
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| 21:17 | Enhance the scrub utility program so that it does a FULL checkpoint prior to starting the backup, to ensure that the database file content matches what needs to be backed up without having to look at the WAL file. (Closed-Leaf check-in: ab1c5ce5 user: drh tags: scrub-backup) | |
| 17:11 | Merge the latest changes from trunk. (check-in: 5021dfe1 user: drh tags: scrub-backup) | |
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2016-05-16
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| 14:35 | Do not run snapshot_fault.test as part of the inmemory_journal permutation. (check-in: 995c084b user: dan tags: trunk) | |
| 13:37 | Merge recent fixes from trunk. (check-in: 0d9b82af user: drh tags: apple-osx) | |
| 11:55 | Disable shell.exe test cases for UTF8 filenames as they do not work on MinGW. (check-in: 386bcbba user: drh tags: trunk) | |
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2016-05-13
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| 17:22 | Improvements to a comment in the pcache.c file. No changes to code. (check-in: b369980f user: drh tags: trunk) | |
| 15:22 | Remove the unused PGHDR_NEED_READ flag. Add invariant checking (during SQLITE_DEBUG builds only) for the PgHdr object. (check-in: 771c5411 user: drh tags: trunk) | |
| 12:12 | Clarification of the pagerFlushOnCommit() logic. (check-in: 3401d9dc user: drh tags: trunk) | |
| 11:50 | Fix pager_end_transaction() to ensure that a ROLLBACK does not clobber unwritten pages in a TEMP file pcache. (check-in: 9495d338 user: drh tags: trunk) | |
| 04:24 | Additional debugging and tracing logic for pcache.c, turned off by default using an "#if 0". (check-in: 32a62e3b user: drh tags: trunk) | |
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2016-05-12
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| 19:17 | Disable ALWAYS and NEVER when compiled with SQLITE_MUTATION_TEST. (check-in: 24d9fbc1 user: drh tags: trunk) | |
| 19:05 | Simplification of the sqlite3FaultSim() call inside of sqlite3PagerCommitPhaseOne(). (check-in: 1b0f4cc3 user: drh tags: trunk) | |
| 18:38 | Add an assert in pager.c to confirm that pPager->tempFile is always true for in-memory databases. (check-in: 3fd71092 user: drh tags: trunk) | |
| 17:06 | Add extra OPTIMIZATION-IF-FALSE comments where required to pcache.c. (check-in: 9d55b8f5 user: dan tags: trunk) | |
| 12:08 | For in-memory databases, it does not matter if pcache entries are marked "clean" or "writable". (check-in: 06c1e27c user: drh tags: trunk) | |
| 12:01 | Remove an unnecessary call to sqlite3PcacheMakeClean() inside of the ROLLBACK logic. (check-in: 0dc50d99 user: drh tags: trunk) | |
| 09:48 | Add a missing OPTIMIZATION-IF-FALSE comment to pcache.c. (check-in: bc202e5b user: dan tags: trunk) | |