This Day In History For 2020-04-01
1 Year Ago (more context)
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2019-04-01
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| 20:57 | Performance improvement on the OP_Variable opcode. (Closed-Leaf check-in: 1dc7993bb6 user: drh tags: value_frombind) | |
| 19:42 | Improvements to the sqlite3ExprImpliesNonNullRow() theorem prover. (check-in: 3fde627616 user: drh tags: trunk) | |
| 18:43 | Add a test case to cover a missed VDBE branch generated by window.c. (check-in: b36813d646 user: dan tags: trunk) | |
| 17:24 | If the library is built with SQLITE_VDBE_COVERAGE defined, have the Tcl tests generate a vdbe coverage report in file testdir/vdbe_coverage.txt. (check-in: f0ed714637 user: dan tags: trunk) | |
| 16:23 | Frame range comparisons can never be NULL because the values will have been checked for NULL prior to the test. (check-in: fa37cf9a6a user: drh tags: trunk) | |
| 15:55 | Mark rowid-comparison opcodes as never-null for VDBE coverage tracking purposes. (check-in: a69bb4f257 user: drh tags: trunk) | |
| 14:30 | Improved VDBE branch coverage in the run-time frame-spec error detection logic of window functions. (check-in: f56d305a7b user: drh tags: trunk) | |
| 14:01 | Improved comments on the VDBE branch coverage testing logic. Fix the VDBE branch coverage measurement on the OP_MustBeInt opcode. (check-in: 8681750e85 user: drh tags: trunk) | |
| 13:06 | Fix a defect in the VDBE branch coverage testing logic. (check-in: 1fcf3307d3 user: drh tags: trunk) | |
| 03:07 | Fix harmless compiler warnings seen with MSVC. (check-in: 6cf8b18ec2 user: mistachkin tags: trunk) | |
3 Years Ago (more context)
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2017-04-01
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| 20:44 | Remove an unnecessary setting of the Mem.enc field for the output of the OP_Record opcode, for a performance improvement and size reduction. (check-in: e6e36b288f user: drh tags: trunk) | |
| 20:14 | Minor performance enhancements to the OP_Affinity opcode. (check-in: c45cd3b947 user: drh tags: trunk) | |
| 19:45 | Remove an unnecessary clearing of the Vdbe.iCurrentTime value. (check-in: fcd2acdd60 user: drh tags: trunk) | |
| 11:59 | Faster implementation for sqlite3VdbeIntValue() and sqlite3VdbeRealValue(). (check-in: 8698df60c2 user: drh tags: trunk) | |
| 11:40 | Remove unused fields from the BtCursor object. (check-in: 1c0d82e078 user: drh tags: trunk) | |
| 00:20 | Save a 78 bytes of code space and a million CPU cycles in speedtest1 by storing the cell index for the leaf page in the BtCursor object in its own field (BtCursor.ix), rather than as an entry in the BtCursor.aiIdx array. (check-in: 2452f0617d user: drh tags: trunk) | |
4 Years Ago (more context)
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2016-04-01
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| 17:54 | Preupdate hook documentation fixes. No changes to code. (check-in: 59814f35d1 user: drh tags: trunk) | |
| 12:35 | When reading an sqlite_stat1 table with missing entries for some indexes, set the default for the missing indexes after all other indexes are set so that the default values are more in line with indexes that are actually in the stat1 table. (check-in: a62340dc05 user: drh tags: trunk) | |
5 Years Ago (more context)
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2015-04-01
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| 18:22 | Merge latest trunk changes with this branch. (check-in: 4621b2eef8 user: dan tags: sorter-opt) | |
| 18:20 | When vacuuming an index that uses no collations other than BINARY, assume that the order of index entries will not be changed by the VACUUM. (check-in: e403460b96 user: dan tags: sorter-opt) | |
| 16:39 | Merge recent enhancements from trunk. (check-in: aea439bdc6 user: drh tags: sessions) | |
| 16:18 | Reduce the CPU used by CREATE INDEX statements by taking better advantage of the fact that keys are inserted in sorted order. (check-in: 592cdc5d72 user: dan tags: sorter-opt) | |
| 16:13 | Merge all recent trunk fixes and enhancements into the apple-osx branch. (check-in: 71b6f507f1 user: drh tags: apple-osx) | |
| 15:15 | • Edit [763d2bc74b560c86|763d2bc74b]: Move to branch mistake. Add propagating "hidden". (artifact: 7b2179a579 user: dan) | |
| 13:21 | Improved detection and suppression of endless loops in clearDatabasePage(). (check-in: 30011ad2f5 user: drh tags: trunk) | |
| 12:16 | • Edit [5c965a71b957fdb0|5c965a71b9]: Move to branch winTest. Edit check-in comment. (artifact: 2f0fef6af1 user: drh) | |
| 01:26 | The build is still broken. Multiple definitions of sqlite3OSTrace when compiled using separate source files. (check-in: 5c965a71b9 user: drh tags: winTest) | |
10 Years Ago (more context)
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2010-04-01
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| 18:33 | Disable the corruptE.test script when ENABLE_OVERSIZE_CELL_CHECK is on. (check-in: 1dc4f9fe9b user: drh tags: trunk) | |
| 16:15 | Zero the filesize-in-header word for bigfile.tcl. Remove bigfile.tcl from the journaltest permutation. (check-in: 63610c71ca user: drh tags: trunk) | |
| 13:41 | Do not journal the content of freelist leaf pages. This restores an optimization that was accidently undone by check-in [12f7346c13] on 2009-01-20. (check-in: b1e7a1a677 user: drh tags: trunk) | |
| 02:47 | Remove a NEVER in sqlite3PagerPagecount() that can in fact be true. (check-in: 8f00533782 user: drh tags: trunk) | |
| 02:22 | Restore the size information in the BtShared structure when a transaction rolls back. (check-in: 802aeb30c9 user: drh tags: trunk) | |
15 Years Ago (more context)
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2005-04-01
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| 16:29 | Documentation updates. (CVS 2440) (check-in: 7e6f688d46 user: drh tags: trunk) | |
| 10:47 | Make the ORDER BY clause return equal elements in the same order they were seen (a stable sort). It was returning them in exactly the reverse order. (CVS 2439) (check-in: e8391491a6 user: drh tags: trunk) | |