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20 check-ins using file src/select.c version 6dede310d2
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2016-10-01
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| 16:53 | Make sure deleting an unused prepared statement does not reference uninitialized fields in the structure. (check-in: 7983eef042 user: drh tags: trunk) | |
| 11:39 | Avoid accessing Vdbe.pc if it is uninitialized. Check Vdbe.magic first. (check-in: 6ac6e4462a user: drh tags: trunk) | |
| 00:37 | Avoid unnecessary zeroing of fields in the Vdbe object when it is allocated. (check-in: 1e21bbe836 user: drh tags: trunk) | |
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2016-09-30
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| 22:24 | Avoid initializing the column-cache section of the Parse object, since entries in the cache will be initialized as they are used, and avoiding the initial memset() saves many CPU cycles. (check-in: 63cf7eafae user: drh tags: trunk) | |
| 21:20 | Fix an always-true conditional left over from the previous commit. (check-in: ab12fce331 user: drh tags: trunk) | |
| 20:22 | Fix the Parse.aColCache column cache so that all of the valid entries are in the first Parse.nColCache slots. (check-in: 6028502059 user: drh tags: trunk) | |
| 19:14 | Another simplification to the Parse object. (check-in: c1419727f5 user: drh tags: trunk) | |
| 18:35 | Remove unnecessary fields from the Parse object. (check-in: 814e41da35 user: drh tags: trunk) | |
| 17:46 | Avoid unnecessary Mem initializations when generating a new sqlite3_stmt object. (check-in: 47ae1cda8d user: drh tags: trunk) | |
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2016-09-29
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| 20:28 | Small size and performance optimization to sqlite3VdbeChangeP5(). (check-in: 3c93c8f5bb user: drh tags: trunk) | |
| 19:50 | Remove the peep-hole optimization of removing OP_Close opcodes that come before OP_Halt, as the extra work of removing those opcodes uses more cycles than just running them. (check-in: 984a96d796 user: drh tags: trunk) | |
| 19:27 | Size and performance optimization to sqlite3ValueFromExpr() (check-in: 945f82bc44 user: drh tags: trunk) | |
| 15:53 | Clarification and typo-fixes in comments. No changes to code. (check-in: e2cd79aa31 user: drh tags: trunk) | |
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2016-09-28
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| 20:42 | Use Knuth multiplicative hashing for the symbol table. (check-in: cc29ddd6be user: drh tags: trunk) | |
| 16:15 | Merge recent enhancements from trunk. (check-in: 0601416347 user: drh tags: apple-osx) | |
| 16:05 | Two more typo fixes in comments. (check-in: 40c0fb0af6 user: drh tags: trunk) | |
| 16:04 | Fix typos in comments. No code changes. (check-in: 5bbd071d57 user: drh tags: trunk) | |
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2016-09-27
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| 00:09 | Update requirements marks due to improvements in the wording of documentation. No changes to code. (check-in: bf903b2eca user: drh tags: trunk) | |
| 00:03 | Fix FTS3 test cases due to the flattener change of the previous check-in. (check-in: 0c8b9b211f user: drh tags: trunk) | |
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2016-09-26
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| 14:39 | When flattening a query of the form "SELECT * FROM (SELECT * FROM tbl WHERE x=?) WHERE y=?", ensure that the final WHERE clause is "x=? AND y=?" instead of "y=? AND x=?". Although it is still not guaranteed, this makes the order in which WHERE clause terms are processed comport more closely to users expectations. (check-in: cf7f9e6d5a user: dan tags: trunk) | |