pgsql: Improve the gin index scan performance in pg_trgm.

From: Teodor Sigaev <teodor(at)sigaev(dot)ru>
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Improve the gin index scan performance in pg_trgm.
Date: 2015-12-25 10:08:55
Message-ID: E1aCPIt-0003g3-OA@gemulon.postgresql.org
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Improve the gin index scan performance in pg_trgm.

Previous coding assumes too pessimistic upper bound of similarity
in consistent method of GIN.

Author: Fornaroli Christophe with comments by me.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/25bfa7efd037a3c44d6a2989d18f55758090e8a9

Modified Files
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contrib/pg_trgm/trgm_gin.c | 28 ++++++++++++++++++++--------
1 file changed, 20 insertions(+), 8 deletions(-)

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