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13 check-ins related to "transitive-constraints"
2015-05-18
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12:28 | Transitive constraints should only work if operands have compatible affinities and collating sequences. (check-in: 5df40564 user: drh tags: trunk) | |
12:18 | Use an ALWAY() on conditionals in the transitive constraint logic that are always true as far as we know. (Closed-Leaf check-in: 204e567f user: drh tags: transitive-constraints) | |
11:34 | Refinements to the determination of when an A==B term is an equivalence. Add test cases. (check-in: 6bfaf525 user: drh tags: transitive-constraints) | |
2015-05-16
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20:51 | Further restrictions on the use of the transitive property in WHERE clauses. (check-in: 8c886c43 user: drh tags: transitive-constraints) | |
19:17 | Fix the transitive constraint processing to only allow transitivity if the operands of the == or IS operator have compatible affinities. (check-in: a46a247f user: drh tags: transitive-constraints) | |
18:31 | Fix a typo in a comment. No changes to code. (check-in: ee4b7425 user: drh tags: trunk) | |
2013-01-17
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17:20 | Enhance the query planner to exploit transitivity of join constraints. (check-in: 38852f15 user: drh tags: trunk) | |
16:43 | Add the ability to disable transitive constraints using the sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS) interface. (Closed-Leaf check-in: 593d67c8 user: drh tags: transitive-constraints) | |
16:18 | Avoid unnecessary collating sequence and affinity restrictions on the use of transitivity. Add test cases to show that the restrictions are not needed. (check-in: 56549f45 user: drh tags: transitive-constraints) | |
15:05 | Make more aggressive use of transitivity in optimizing queries. Add a test case. (check-in: d9676284 user: drh tags: transitive-constraints) | |
00:08 | Improved comments explaining the operation of the findTerm() utility routine in where.c. Increase the maximum number of levels of transitivity from 4 to 11. (check-in: fe152f8b user: drh tags: transitive-constraints) | |
2013-01-16
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17:08 | Enhance the query planner to exploit transitivity of join constraints in a multi-way join. (check-in: 13171eb5 user: drh tags: transitive-constraints) | |
00:46 | Improvements to query planning for joins: Avoid unnecessary calls to "optimal scan" checks in cases where table reordering is not possible. Make sure optimal scan checks are carried out for CROSS JOINs and LEFT JOINs. (check-in: d5ebb787 user: drh tags: trunk) | |