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Overview
| Comment: | Enhance the automatic index logic so that it creates a partial index when doing so gives the same answer for less work. UPDATE: This change introduced a bug described by ticket [2326c258d02ead33]. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
d95d0313c447f5baeabdb17284d86063 |
| User & Date: | drh 2014-10-24 19:28:09 |
| Original Comment: | Enhance the automatic index logic so that it creates a partial index when doing so gives the same answer for less work. |
References
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2015-02-24
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| 15:30 | • New ticket [2326c258] Incorrect result on a LEFT JOIN with an ORDER BY. artifact: f6a379b6 user: drh | |
Context
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2014-10-25
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| 12:28 | Do not use virtual (and hence redundant) WHERE-clause terms to restrict the content of a automatic partial index. Show when an automatic partial index is used in the EXPLAIN QUERY PLAN output. check-in: b9ad601e user: drh tags: trunk | |
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2014-10-24
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| 19:28 | Enhance the automatic index logic so that it creates a partial index when doing so gives the same answer for less work. UPDATE: This change introduced a bug described by ticket [2326c258d02ead33]. check-in: d95d0313 user: drh tags: trunk | |
| 15:26 | Honor a high likelihood() on range constraints. check-in: 401235ed user: drh tags: trunk | |
Changes
Changes to src/expr.c.
Changes to src/resolve.c.
Changes to src/sqliteInt.h.
Changes to src/where.c.
Added test/autoindex4.test.