This Day In History For 2018-05-21
2 Years Ago (more context)
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2016-05-21
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| 23:25 | More tweaks to improve the performance of the insert logic, slightly. (check-in: dec1307581 user: drh tags: trunk) | |
| 20:03 | Simplify the sqlite3BtreeInsert() interface by gathering the five arguments describing the content to be inserted into the new BtreePayload structure, and thus reducing the number of parameters from eight to four. (check-in: 55f348cdd2 user: drh tags: trunk) | |
| 19:10 | Remove some unused legacy code from the btree insert logic. (check-in: 2ce1166717 user: drh tags: trunk) | |
| 18:50 | Use pthreads mutexes and conditions to synchronize threads in bc_test1. (check-in: f33aa76f07 user: dan tags: begin-concurrent) | |
| 12:29 | Yet another minor size reduction and performance increase in the b-tree insert logic. (check-in: 1dbaf7a119 user: drh tags: trunk) | |
| 11:23 | Small size reduction and performance increase in the sqlite3BtreeInsert() logic. (check-in: 656aa1ecf5 user: drh tags: trunk) | |
| 00:45 | Add the shell-script used for routine performance testing. (check-in: 8e366f18f5 user: drh tags: trunk) | |
3 Years Ago (more context)
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2015-05-21
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| 20:26 | Have r-tree prefer to use the constraint "col MATCH ?" over "rowid = ?". drh added later: All changes on this branch have been cherrypicked to trunk and will be merged into sessions from trunk. So this branch can close. (Closed-Leaf check-in: b9e45596d8 user: dan tags: sessions-value-dup) | |
| 17:24 | Prevent a virtual table from being destroyed while it is in use. Also: replace Vdbe.inVtabMethod with sqlite3.nVDestroy. Simplify the EXPLAIN output for P4.pVtab to only show the sqlite3_vtab pointer. Cherrypick of [cbeb9a1aed8c]. (check-in: b3bb660af9 user: dan tags: branch-3.8.6) | |
| 17:21 | Avoid ever writing before the start of an allocated buffer in the DIRECT_OVERFLOW_READ code. Fix for [e3a290961a6]. Cherrypick of [c3c15d20c691]. (check-in: 31b13eb528 user: dan tags: branch-3.8.6) | |
| 02:24 | Silently ignore any attempt to add a prefix index for prefixes zero bytes in size to an fts3/4 table. Or any prefix index size so large that it overflows a 32-bit signed integer. Cherrypick [ad4b19d2ac0889a] (check-in: 000197cc4e user: drh tags: branch-3.7.11) | |
| 02:20 | Ensure that tables names are dequoted exactly once by the trigger logic. Cherrypick [59e92bd9521f1e8] and [9d887b92f8086961e]. (check-in: 9e3f64a4f4 user: drh tags: branch-3.7.11) | |
| 02:07 | When parsing the schema, ignore any SQL that does not begin with "CREATE". Cherrypick of [d3c00d61581c] with additional changes. (check-in: 09784f376b user: drh tags: branch-3.7.11) | |
| 01:04 | Do not allow virtual table constructors to be called recursively. Cherrypick [0a72726da21581ab] (check-in: 0f0694e424 user: drh tags: branch-3.7.11) | |
| 00:50 | Add the ".open" command to the command-line shell. Cherrypick from [21eccb919441]. (check-in: a71e2a72c5 user: drh tags: branch-3.7.11) | |
4 Years Ago (more context)
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2014-05-21
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| 08:48 | Do not burn memory remembering CHECK constraints in a read-only database. (check-in: 34ddf02d3d user: drh tags: trunk) | |
| 08:21 | Fix the sqlite3_db_readonly() API so that it reports true if the database is readonly because the file format write version (byte 18 of the header) is too large. (check-in: 8d8af114da user: drh tags: trunk) | |
5 Years Ago (more context)
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2013-05-21
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| 19:23 | Enhanced "wheretrace" output in the NGQP solver routine. (check-in: 04dfb85a2a user: drh tags: nextgen-query-plan-exp) | |
| 15:52 | Work toward improving the NGQP's ability to optimize out ORDER BY clauses. (check-in: 67367f1e1f user: drh tags: nextgen-query-plan-exp) | |
10 Years Ago (more context)
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2008-05-21
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| 15:38 | Add the "volatile" keyword to variables in the Pager structure used for synchronization when memory management is enabled. (CVS 5153) (check-in: 25b9f3b9b2 user: drh tags: trunk) | |
| 15:01 | Update sqlite3_open*() documentation on shared cache/filename matching relationship. Ticket #3132. (CVS 5152) (check-in: 235e384eca user: shane tags: trunk) | |
| 13:44 | Fix the VACUUM command so that it does not modify the changes counts reported by sqlite3_changes() or sqlite3_total_changes(). Update documentation on sqlite3_changes() and sqlite3_total_changes() to state that "DELETE FROM table" records a change count of zero. (CVS 5151) (check-in: f5d61d7d98 user: drh tags: trunk) | |