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3 check-ins using file src/where.c version a9a27099
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2018-06-05
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| 13:54 | Merge trunk changes. (check-in: 047295c5 user: drh tags: multikey-opt-idea) | |
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2018-06-04
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| 13:27 | Merge recent changes from trunk. (check-in: f8df2a8e user: drh tags: multikey-opt-idea) | |
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2018-05-30
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| 00:54 | Demonstration code on a possible technique for optimizing the use of IN operator on columns to the right of multicolumn indexes. If the OP_Noop generated where were really a new opcode that checked to see if there existed any entries in the index with a matching prefix, it might prevent unnecessary iterations of the IN operator. (check-in: 92f0fe15 user: drh tags: multikey-opt-idea) | |