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postgres/src/backend
Tom Lane 82849df6c6 Add new selectivity estimation functions for pattern-matching operators
(LIKE and regexp matches).  These are not yet referenced in pg_operator,
so by default the system will continue to use eqsel/neqsel.
Also, tweak convert_to_scalar() logic so that common prefixes of strings
are stripped off, allowing better accuracy when all strings in a table
share a common prefix.
2000-04-16 04:41:03 +00:00
..
2000-01-26 05:58:53 +00:00
2000-04-08 19:38:00 +00:00