pgsql-server/src/backend/optimizer/path costsize.c

From: tgl(at)svr1(dot)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql-server/src/backend/optimizer/path costsize.c
Date: 2003-10-05 22:44:26
Message-ID: 20031005224426.0A809D1B500@svr1.postgresql.org
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CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl(at)svr1(dot)postgresql(dot)org 03/10/05 19:44:25

Modified files:
src/backend/optimizer/path: costsize.c

Log message:
Add a little more smarts to estimate_hash_bucketsize(): if there's no
statistics, but there is a unique index on the column, we can safely
assume it's well-distributed.

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