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Comment:When estimating the cost of an index scan, factor in the cost savings of being able to use the index to evaluate some WHERE clause terms without having to do a table lookup.
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SHA1: a59b5622f7cc6e502d71aabc12c053582cd03609
User & Date: drh 2016-07-27 18:27:02
Context
2016-07-27
19:20
Add test cases and fix a comment. Closed-Leaf check-in: 50f8ea37 user: drh tags: improved-index-scan
18:27
When estimating the cost of an index scan, factor in the cost savings of being able to use the index to evaluate some WHERE clause terms without having to do a table lookup. check-in: a59b5622 user: drh tags: improved-index-scan
2016-07-26
10:46
Ensure that the sqlite3_scrub_backup() extension creates a backup database at least as large as indicated by the database header, even if the last page of the input database is a free-list leaf. check-in: 483994a5 user: dan tags: trunk
Changes
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Changes to src/expr.c.

Changes to src/sqliteInt.h.

Changes to src/where.c.