This Day In History For 2020-06-20
2 Years Ago (more context)
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2018-06-20
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| 09:23 | Add tests to improve coverage of code in window.c. Fix a problem with "SELECT row_number() OVER ()". (check-in: f41b6b7317 user: dan tags: exp-window-functions) | |
3 Years Ago (more context)
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2017-06-20
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| 19:20 | Ensure that test tool "tserver" finalizes all statements before attempting to close a database handle. (check-in: d8568aacf0 user: dan tags: server-edition) | |
| 18:19 | Rename the azCompileOpt global constant to avoid a harmless compiler warning about a name conflict with a local variable. (check-in: 94e420ecfb user: drh tags: trunk) | |
| 18:13 | • Fixed ticket [892fc34f17]: Incorrect query result when a LEFT JOIN subquery is flattened plus 5 other changes (artifact: 879fcac86a user: drh) | |
| 17:43 | Ensure that the query planner knows that any column of a flattened LEFT JOIN can be NULL even if that column is labeled with "NOT NULL". Fix for ticket [892fc34f173e99d8]. (check-in: 483462682d user: dan tags: trunk) | |
| 16:15 | • New ticket [892fc34f17] Incorrect query result when a LEFT JOIN subquery is flattened. (artifact: d28d654485 user: drh) | |
4 Years Ago (more context)
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2016-06-20
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| 17:25 | For a table on the rhs of a LEFT JOIN operator, do not include terms like "IS NULL" from the WHERE clause in the cursor-hint. These may be false for rows that the cursor would otherwise visit, but true for a row of all NULL values generated by the LEFT JOIN. (check-in: 913e595615 user: dan tags: trunk) | |
| 17:22 | Allow LIKE operators that appear in a WHERE clause to be included in the cursor-hint for a cursor on the rhs of a LEFT JOIN. (Closed-Leaf check-in: 7455d932f5 user: dan tags: cursor-hints) | |
5 Years Ago (more context)
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2015-06-20
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| 18:13 | Split out all four cases of cellSizePtr() into different methods, each optimized for the specific page type. This gives a 0.36% performance increase at a cost of about 300 bytes of code. (Leaf check-in: 522502ec18 user: drh tags: btree-opt) | |
| 14:11 | Update the fuzztest data using the latest test vectors discovered by AFL. (check-in: b97f9cf73e user: drh tags: trunk) | |
| 13:18 | Make sure that the likelihood() function does not mess up generation of result-set code when it is used (inappropropriately) in a result-set expression. (check-in: 7cdbae625e user: drh tags: trunk) | |