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Changes In Branch cursor-hints Excluding Merge-Ins
This is equivalent to a diff from 0b1579caf0 to 7455d932f5
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2018-12-14
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| 20:28 | Add a missing OP_ColumnsUsed opcode to code for expressions like "? IN (SELECT ...)" in cases where expression can use an index that may contain NULL values. (Backported fix from version 3.14.0). (Leaf check-in: 11368e673c user: drh tags: branch-3.8.9) | |
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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) | |
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2016-06-17
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| 19:27 | Include WHERE terms in the cursor-hint passed to a cursor opened for the rhs of a LEFT JOIN iff we can be sure that those terms will not evaluate to true if the LEFT JOIN generates a row of NULLs. (check-in: 998095aba0 user: dan tags: cursor-hints) | |
| 14:33 | If a table is on the rhs of a LEFT JOIN, include only terms from the joins ON(...) clause in the cursor-hint passed via OP_CursorHint. (check-in: 2a2346b042 user: dan tags: cursor-hints) | |
| 13:01 | Add the json_quote() function to the JSON1 extension. (Closed-Leaf check-in: 2c3714aebf user: drh tags: json_quote) | |
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2016-06-16
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| 17:14 | Add a missing OP_ColumnsUsed opcode to code for expressions like "? IN (SELECT ...)" in cases where expression can use an index that may contain NULL values. (check-in: 0b1579caf0 user: dan tags: trunk) | |
| 11:16 | Fix a typo in a comment on the SrcList object. (check-in: 48b555c42d user: drh tags: trunk) | |
Changes to src/wherecode.c.
Added test/cursorhint2.test.
Changes to test/where3.test.