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50 check-ins occurring around d10fb49a92f5f6e9.
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2013-11-20
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| 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) | |
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2013-11-19
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| 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) | |
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2013-11-18
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| 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) | |
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2013-11-17
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| 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) | |
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2013-11-16
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| 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) | |
| 12:56 | Fix testcase misc7-16 so that it works with the new UNIQUE constraint error message format. (check-in: c7f2ed9f44 user: drh tags: trunk) | |
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2013-11-15
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| 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) | |
| 18:58 | Fix comments on the OP_Divide and OP_Remainder operators, especially the "Synopsis:" comment, so that they agree with the actual implementation. (check-in: cc17f1f05f user: drh tags: trunk) | |
| 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) | |
| 13:12 | Add the --query option to the wordcount test program. (check-in: 5960d11eba user: drh tags: trunk) | |
| 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) | |
| 03:21 | Fix a typo in the "synopsis" for the OP_Lt opcode that causes an incorrect comment to be added to EXPLAIN output. (check-in: d99a30a25d user: drh tags: trunk) | |
| 03:16 | Another adjustment to the EXPLAIN indentation logic, in order to deal with the sorter loop on a CREATE INDEX statement. (check-in: cbe85cc2a9 user: drh tags: trunk) | |
| 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) | |
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2013-11-14
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| 23:59 | Adjust the command-line shell EXPLAIN indentation logic to handle the second loop of an UPDATE that reads out a RowSet. (check-in: ea141a9b87 user: drh tags: trunk) | |
| 19:34 | Remove an unused local variable. (check-in: 10d5922638 user: drh tags: trunk) | |
| 19:18 | Merge the skip-scan optimization into the sessions branch. (check-in: 7596d1bf80 user: drh tags: sessions) | |
| 15:35 | An experimental virtual tables for showing the content of internal schema objects. (Leaf check-in: d1fbc6ca18 user: drh tags: schema2-vtab) | |
| 00:09 | Simplification to the progress callback check. One branch removed. (check-in: 24ef16548e user: drh tags: trunk) | |
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2013-11-13
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| 23:48 | Make sure the progress callback is invoked prior to an SQLITE_ROW return if it is overdue to be called. (check-in: 21f59b04f7 user: drh tags: trunk) | |
| 20:46 | Merge the skip-scan enhancement into trunk. (check-in: b0bb975c09 user: drh tags: trunk) | |
| 19:01 | Import the "PRAGMA vdbe_eqp" enhancement and the enhanced EXPLAIN formatting the shell from trunk. Fix a bug in skip-scan and add a test case to prevent a regression. (Closed-Leaf check-in: f668616a29 user: drh tags: skip-scan) | |
| 18:35 | In the shell tool, if an "EXPLAIN" command is executed in ".explain on" mode, attempt to automatically indent the bodies of loops in the output VDBE program. (check-in: e7d34ec681 user: dan tags: trunk) | |
| 17:58 | Add the "PRAGMA vdbe_eqp" command, only available with SQLITE_DEBUG. Simplify some of the other debugging logic. (check-in: 8ce33f4c81 user: drh tags: trunk) | |
| 17:24 | Add VDBE comments to the beginning and end of skip-scan loops. (check-in: 0c85d93b52 user: drh tags: skip-scan) | |
| 16:58 | Improve the way that skip-scan loops are constructued. Add test cases. Improved the scoring of skip-scan loops. (check-in: 5e75ab9388 user: drh tags: skip-scan) | |
| 15:32 | Add test cases for skip-scan. Enhance "do_test" so that if the expected result is of the form "/*..*/" or "~/*..*/" it treats the expected result as a glob pattern rather than as a regular expression. Fix a bug in ANALYZE result loading associated with WITHOUT ROWID tables. (check-in: d3e6e9b2a7 user: drh tags: skip-scan) | |
| 12:27 | Add the ability to use an index even if the left-most columns of the index are unconstrainted, provided that the left-most columns have few distinct values. (check-in: 27dd5993d1 user: drh tags: skip-scan) | |
| 08:55 | Avoid an unnecessary OP_IfNull while doing an indexed search. (check-in: 5196000930 user: drh tags: trunk) | |
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2013-11-12
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| 21:37 | Adjust the SQLITE_MALLOCSIZE defines, primarily to make sure _msize gets used with MSVC when appropriate. (check-in: 4e7e805e11 user: mistachkin tags: trunk) | |