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|Comment:||Adjustments to the result row estimator for the IN operator so that it gives the same estimates as the equivalent OR operator. Test cases for the same.|
|Downloads:||Tarball | ZIP archive | SQL archive|
|Timelines:||family | ancestors | descendants | both | stat2-enhancement|
|Files:||files | file ages | folders|
|User & Date:||drh 2011-01-21 18:18:13|
|00:10||Add the ability to use indices for constraints of the form "x IS NOT NULL" when sqlite_stat2 is available and most entries for column x are NULL. check-in: 5d5bddd2 user: drh tags: stat2-enhancement|
|18:18||Adjustments to the result row estimator for the IN operator so that it gives the same estimates as the equivalent OR operator. Test cases for the same. check-in: c82cb9c0 user: drh tags: stat2-enhancement|
|16:27||Make use of histogram data to make better estimates for the number of rows that will be returned from "x IN (v1,v2,v3,...)" constraints. check-in: fd3977a2 user: drh tags: stat2-enhancement|
Changes to src/where.c.
Changes to test/analyze5.test.