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Overview
| Comment: | Deploy heuristics (well-commented) to better estimate how much unindexed terms in the WHERE clause filter the number of output rows from a single table. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
221659945c3f78d3b6789bfe8fdeb8d3 |
| User & Date: | drh 2014-11-22 18:50:44 |
Context
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2014-11-22
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| 19:52 | Fix an error in the comments from the previous check-in. (check-in: 9660ce54 user: drh tags: trunk) | |
| 18:50 | Deploy heuristics (well-commented) to better estimate how much unindexed terms in the WHERE clause filter the number of output rows from a single table. (check-in: 22165994 user: drh tags: trunk) | |
| 12:22 | Remove a redundant test case (probably a copy/paste error). Add an assert() to where.c to ensure that automatic indexes do not have there output row counts adjusted downward by supplementary constraints. (check-in: eea47933 user: drh tags: trunk) | |
Changes
Changes to src/where.c.
Changes to test/scanstatus.test.