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50 check-ins occurring around d0d0bab4e92402b6.
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2016-06-06
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| 01:48 | Small performance improvement in the LIKE function. (check-in: 5fb0c35459 user: drh tags: trunk) | |
| 01:14 | Btree interface refactoring: (1) The sqlite3BtreeKeySize() interface is renamed to sqlite3BtreeIntegerKey() and modified to work only for table btrees with a rowid. (2) The sqlite3BtreeDataSize() interface is renamed to sqlite3BtreePayloadSize() and modified to work with any btree. (3) The sqlite3BtreeDataFetch() and sqlite3BtreeKeyFetch() routines are combined into a single sqlite3BtreePayloadFetch() routine. The result of these changes is a smaller binary and fewer CPU cycles needed to run queries. (check-in: 2d831074cf user: drh tags: trunk) | |
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2016-06-04
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| 21:05 | Improved comment on cursorOwnsBtShared(). No changes to code. (Closed-Leaf check-in: 5e269c2d26 user: drh tags: btree-refactor) | |
| 20:58 | Fix a C99-ism and a compiler warning for MSVC. (check-in: aa53a36ea2 user: drh tags: btree-refactor) | |
| 20:37 | Change the sqlite3BtreeKeySize() interface into sqlite3BtreeIntegerKey() and make it only work for table btrees. Change sqlite3BtreeDataSize() into sqlite3BtreePayloadSize() and make it work for all btrees. Combine sqlite3BtreeDataFetch() and sqlite3BtreeKeyFetch() into a single sqlite3BtreePayloadFetch() routine. These changes seem to make the b-tree interface more rational and they reduce both binary size and CPU usage. (check-in: bef35e18dd user: drh tags: btree-refactor) | |
| 17:12 | Allocate KeyInfo objects from lookaside if possible. (check-in: b411107a36 user: drh tags: trunk) | |
| 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: 9583c0fb39 user: drh tags: trunk) | |
| 13:57 | Remove an unreachable branch in the UNIQUE constraint parsing. (check-in: 313e990c74 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: fa3a89fc0b 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: aa7e9d0cc1 user: drh tags: trunk) | |
| 18:21 | Fix a memory leak when a WITHOUT ROWID eponymous virtual table is used. (Closed-Leaf check-in: 31b83a7d7e user: drh tags: without-rowid-vtab) | |
| 17:27 | Disallow access to the rowid column on WITHOUT ROWID virtual tables. (check-in: d31c25972b 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: 5908aa4dc5 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: 3134b3266c 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: 95f483e86e user: drh tags: without-rowid-vtab) | |
| 17:44 | Add the data= parameter to the CSV virtual table extension. (check-in: 769191042a user: drh tags: without-rowid-vtab) | |
| 16:22 | Fix corner cases in the WITHOUT ROWID virtual table logic. (check-in: a393bbb972 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: 3bd85fa5a9 user: dan tags: trunk) | |
| 05:02 | Fix compilation issues with the VFS stat extension. (check-in: f6e956525b 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: 49638f180e user: drh tags: without-rowid-vtab) | |
| 18:44 | Add the columns=N parameter to the CSV extension. (check-in: 28ebeadd6a user: drh tags: trunk) | |
| 18:08 | Add the testflags parameter to the csv extension. (check-in: b93fb2fe0d 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: 00d3570c8b 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: 64ca1a835a user: dan tags: trunk) | |
| 05:45 | Minor tweaks to the bc_test1 test program. (check-in: d0d0bab4e9 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: 242507b4ff user: dan tags: vtab-experimental) | |
| 17:45 | Remove an unnecessary malloc from the vfsstat extension. (check-in: 24f258c239 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: d3f99a5e8d 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: 6a0f200957 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: cbf72b04bb 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: 3a46104389 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: 0987487dd4 user: drh tags: trunk) | |
| 00:13 | Clang can define _MSC_VER in some circumstances; therefore, check for Clang first. (Closed-Leaf check-in: 3f710bc361 user: mistachkin tags: ctimeCompiler) | |
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2016-05-27
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| 21:13 | Check for Clang before GCC. (check-in: 7c2cd4b05f user: mistachkin tags: ctimeCompiler) | |
| 20:30 | Remove surplus quotation marks from the COMPILER= compile_options setting for Clang. (check-in: 5c966f2000 user: mistachkin tags: ctimeCompiler) | |
| 19:34 | Remove surplus quotation marks from the COMPILER= compile_options setting for GCC. (check-in: 664c132dab user: drh tags: ctimeCompiler) | |
| 18:09 | Add basic compiler information to the results of 'PRAGMA compile_options'. (check-in: d734e2df40 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: 71087c12bc user: drh tags: trunk) | |
| 04:10 | Fix Lemon so that it actually works with -DYYSTACKDEPTH=0. (check-in: a9be4c2d56 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: 28d439f816 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: ffe80a1bfa user: drh tags: trunk) | |
| 20:52 | Add further instrumentation to the bc_test1.c test app. (check-in: 5528de4a53 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: 2a41f098b2 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: 41fd46e296 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: 61e239bc43 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: 37de3eab67 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: 3b28b68e23 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: 3c2a770549 user: drh tags: trunk) | |
| 19:02 | Avoid a minor error message when running RTREE without an sqlite_stat1 table. (check-in: 276e92f5b4 user: drh tags: trunk) | |
| 18:27 | Fix the rtreeG.test test case. (Closed-Leaf check-in: 9589e93771 user: drh tags: tree-stat1-fix) | |