Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
50 descendants of 8dc5c76c766828d7
|
2013-11-21
| ||
| 23:37 | Fix a harmless clang warning in the command-line shell. (check-in: 3d47a556f0 user: drh tags: trunk) | |
| 22:02 | Slight change to the --timer output on wordcount for better display on windows: Avoid showing the full pathname of the executable. (check-in: b9e047b9e3 user: drh tags: trunk) | |
| 21:59 | Changes some offset and amount parameters from "int" to "u32" to avoid harmless signed/unsigned comparison warnings. (check-in: 4e8c5d0795 user: drh tags: trunk) | |
| 21:40 | Modify wordcount so that timer information appears on standard error instead of standard output. Rename the run-wordcount.bash script to run-wordcount.sh and simplify it so that it stands a better chance of running on non-GNU systems. (check-in: 586c11ed7c user: drh tags: trunk) | |
| 21:23 | Do not reuse factored constants that might have had their encodings changed. (check-in: 487f20366c user: drh tags: trunk) | |
| 20:48 | Fix the code generator to honor turning off constant expression factoring. (check-in: 882622662d user: drh tags: trunk) | |
| 19:27 | Add the --timer option to the wordcount test program. (check-in: a89fdf8755 user: drh tags: trunk) | |
| 19:05 | Remove a test from sqlite3VdbeMemFromBtree() which was unnecessary, and after the recent OP_Column refactoring, unreachable. (check-in: 23667f3ba0 user: drh tags: trunk) | |
| 17:24 | Make sure the OP_Next and OP_NextIfOpen opcodes are numbered close together for efficiency in switch() statements. OP_Prev and OP_PrevIfOpen too. (check-in: d4ccf0f5c6 user: drh tags: trunk) | |
| 16:08 | When one or more arguments to a function are constants, try to factor out just those arguments into initialization code. (check-in: 50d350abbc user: drh tags: trunk) | |
| 14:44 | Remove the obsolete TK_CONST_FUNC token type. (check-in: 9b4217f055 user: drh tags: trunk) | |
| 14:33 | Add the ability to factor constant functions out of inner loops. But do not factor out non-constant functions, like random(). (check-in: 1b0f779e19 user: drh tags: trunk) | |
| 04:18 | Another improvement to OP_Function and an improvement to OP_Move. (check-in: 70b056fb6f user: drh tags: trunk) | |
| 03:43 | A simple change to the OP_Function opcode improves overall performance by about 0.5%. (check-in: b890eefd57 user: drh tags: trunk) | |
| 03:12 | Performance optimization to the OP_Next and OP_Prev opcodes. (check-in: ecaac28a2e user: drh tags: trunk) | |
| 01:33 | Refactor the OP_Column opcode to make it clearer and easier to maintain. Overall, performance tests show about a 1% speed increase with this change. (check-in: 972881c6d3 user: drh tags: trunk) | |
| 01:04 | Reduce the size of VdbeCursor again, this time without a performance hit. (Closed-Leaf check-in: 933939932c user: drh tags: OP_Column-refactor) | |
| 00:10 | Unpack some fields, adding some space back to the VdbeCursor object, in order to help the code to run a little faster. (check-in: f8d5efcd7b user: drh tags: OP_Column-refactor) | |
|
2013-11-20
| ||
| 21:51 | Reduce the size of the VdbeCursor object from 144 to 120 bytes. (check-in: 5f9d506885 user: drh tags: OP_Column-refactor) | |
| 20:58 | Improved comments on the OP_Column changes. Optimize out loading of overflow pages for content with zero length. Add test cases for the latter. (check-in: 0e05679db7 user: drh tags: OP_Column-refactor) | |
| 19:28 | Further performance tweaks to OP_Column. (check-in: 0e3f5df695 user: drh tags: OP_Column-refactor) | |
| 17:25 | Refactoring the OP_Column opcode for improved performance and maintainability. (check-in: 7c914e3997 user: drh tags: OP_Column-refactor) | |
| 02:53 | Simplifications to the VdbeCursor object. (check-in: 5562cd343d user: drh tags: trunk) | |
| 00:59 | Performance improvement for the OP_MustBeInt opcode in the VDBE. (check-in: 96a65388e7 user: drh tags: trunk) | |
|
2013-11-19
| ||
| 18:17 | Fix a harmless MSVC compiler warning. (check-in: 6cc023bb29 user: drh tags: trunk) | |
| 13:55 | Minor performance improvement to sqlite3SerialTypeGet(). (check-in: 17e8524fc0 user: drh tags: trunk) | |
| 12:33 | Change Noop-comments in where.c into Module-comments, so that they are omitting without SQLITE_ENABLE_MODULE_COMMENTS. (check-in: 3e577f4018 user: drh tags: trunk) | |
| 02:34 | Avoid seeking on the main data table during the first loop of an UPDATE if an index is sufficient to check the WHERE clause. (check-in: 57158d9daf user: drh tags: trunk) | |
| 00:31 | Fix an requirement mark in a test script so that it matches the typo-corrected requirement. No changes to code. (check-in: 072412d5e3 user: drh tags: trunk) | |
|
2013-11-18
| ||
| 19:32 | Add comments identifing where the skip-scan option is decided in the query planner, to aid in tuning that decision. No changes to code. (check-in: e9df04cec4 user: drh tags: trunk) | |
| 18:48 | Fix documentation typos. No changes to code. (check-in: 7caeb09c52 user: drh tags: trunk) | |
| 11:20 | Fix harmless compiler warnings from clang scan-build. (check-in: 8d002740bf user: drh tags: trunk) | |
| 08:41 | Fix a problem with the shell tool EXPLAIN indentation code and VDBE sub-programs. (check-in: 9c8d685625 user: dan tags: trunk) | |
| 03:11 | Enable the ONEPASS optimization for DELETE, for both rowid and WITHOUT ROWID tables. (check-in: 44a07afdd9 user: drh tags: trunk) | |
|
2013-11-17
| ||
| 02:42 | Make sure one-pass DELETE for WITHOUT ROWID tables correctly positions the PRIMARY KEY cursor. Make the same fix for UPDATE. (Closed-Leaf check-in: 6bd5750b7d user: drh tags: optimize-delete) | |
|
2013-11-16
| ||
| 23:16 | Fix a couple of minor problems with the new delete logic. (check-in: a11243f840 user: drh tags: optimize-delete) | |
| 23:03 | Fix an OOM-recovery problem in the DELETE code generator. (check-in: dc7be158b8 user: drh tags: optimize-delete) | |
| 22:48 | Combine the rowid and WITHOUT ROWID paths for DELETE into a single path. (check-in: c4734b881a user: drh tags: optimize-delete) | |
| 20:45 | The one-pass optimization is now working for DELETE on WITHOUT ROWID tables. (check-in: e4d220a381 user: drh tags: optimize-delete) | |
| 20:13 | Enhance the DELETE logic so that it can make use of WHERE_ONEPASS_DESIRED for rowid tables. (check-in: 8f479a7275 user: drh tags: optimize-delete) | |
| 15:35 | Fully constraint the ORDER BY on the top-10 line of the --summary output from the wordcount test program. Add the run-wordcount.bash script for running wordcount in various configurations. (check-in: 7edf39eb93 user: drh tags: trunk) | |
| 14:03 | Avoid unnecessary OP_IfNull checks when doing a range query where there is a constraint on the lower bound of the range. (check-in: de08a7e7ab user: drh tags: trunk) | |
| 13:55 | Simplification and performance improvement to the logic that factors constant expressions ouf of inner loops. (check-in: ee9353fdf3 user: drh tags: trunk) | |
|
2013-11-15
| ||
| 20:06 | Add ALWAYS and NEVER macros to currently unreachable but important branches in sqlite3ExprCompare(). (Closed-Leaf check-in: cee835fe90 user: drh tags: expr-codegen-enhancement) | |
| 19:00 | Merge the operator comment fixes from trunk. (check-in: 9f14f55c8a user: drh tags: expr-codegen-enhancement) | |
| 18:15 | Changes to make the new constant expression factoring logic more general and more testable. (check-in: d10fb49a92 user: drh tags: expr-codegen-enhancement) | |
| 16:48 | Add test cases for INSERT INTO ... DEFAULT VALUES on tables with numeric constants in CHECK constraints. (check-in: 79ec485b54 user: drh tags: expr-codegen-enhancement) | |
| 15:52 | Improvements to the Expr comparison routine to make it more general. Improvements to unary-minus code generation so that it can make use of a global constant register with a zero value. (check-in: 835be656bb user: drh tags: expr-codegen-enhancement) | |
| 12:41 | Simplify the range scan code generate while also avoiding an unnecessary OP_Affinity opcode. (check-in: 372686bfbb user: drh tags: expr-codegen-enhancement) | |
| 03:30 | Merge EXPLAIN fixes from trunk. (check-in: cd579727b1 user: drh tags: expr-codegen-enhancement) | |
| 01:10 | Rework the logic that factors constant expressions out of inner loops, making it both simpler and faster. (check-in: 8dc5c76c76 user: drh tags: expr-codegen-enhancement) | |