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13 check-ins using file src/shell.c.in version 73c0eeb7c2
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2025-07-08
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| 22:11 | Fix a possible user-after free following OOM in the EXISTS-to-JOIN optimization. (Leaf check-in: 498ee8d514 user: drh tags: trunk) | |
| 20:28 | Adjustments to test/incrblob4.test so that it works on both Linux and Mac in spite of error message differences between those platforms. Minor change to termIsEquivalent() to provide 100% MC/DC. (check-in: 720387f860 user: drh tags: trunk) | |
| 19:53 | New optimizations to detect early when queries return no rows due to tables being empty. This includes the EXISTS-to-JOIN optimization that tries to transform EXISTS constraints into additional terms of the FROM clause. (check-in: e33da6d5dc user: drh tags: trunk) | |
| 17:28 | Enable the EXISTS-to-JOIN optimization if the outer query has no FROM clause. (Closed-Leaf check-in: 1b9b124f9a user: drh tags: empty-table-optimizations) | |
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2025-07-07
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| 19:03 | Small performance optimization in the resolver. (check-in: 840646df06 user: drh tags: empty-table-optimizations) | |
| 18:35 | Merge the latest trunk enhancements and fixes into the empty-table-optimizations branch. (check-in: f15cdf0757 user: drh tags: empty-table-optimizations) | |
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2025-07-06
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| 01:19 | Improvements to the EXPLAIN QUERY PLAN output for EXISTS-to-JOIN. (check-in: 6b1ecbaa2e user: drh tags: empty-table-optimizations) | |
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2025-07-05
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| 23:33 | Enhance the EXISTS-to-JOIN optimization so that it works on EXISTS subqueries that do not have a WHERE clause, and so that it works on nested EXISTS subqueries. (check-in: c1d5295724 user: drh tags: empty-table-optimizations) | |
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2025-07-04
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| 14:24 | Merge fixes from trunk into the empty-table-optimizations branch (check-in: 6f98b16d21 user: drh tags: empty-table-optimizations) | |
| 11:06 | Do not allow the EXISTS-to-JOIN optimization if the EXISTS clause is based on a view, since that view might expand into a join. (check-in: 872c41fedd user: drh tags: empty-table-optimizations) | |
| 10:26 | Improve the early-termination optimization so that it works in queries which use the LIKE optimization in the outer loop. (check-in: b4e4d14824 user: drh tags: empty-table-optimizations) | |
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2025-07-03
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| 20:51 | Merge the latest trunk fixes and enhancements into the empty-table-optimizations branch (check-in: d4f47e04f5 user: drh tags: empty-table-optimizations) | |
| 00:17 | Minor tweaks to the exists-to-join optimization. (check-in: 9cb600ad57 user: drh tags: empty-table-optimizations) | |