pgsql-server/src backend/optimizer/path/costsi ...

From: tgl(at)svr1(dot)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql-server/src backend/optimizer/path/costsi ...
Date: 2003-12-03 17:45:11
Message-ID: 20031203174511.AD6B8D1D59B@svr1.postgresql.org
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CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl(at)svr1(dot)postgresql(dot)org 03/12/03 13:45:10

Modified files:
src/backend/optimizer/path: costsize.c pathkeys.c
src/backend/utils/cache: lsyscache.c
src/include/utils: lsyscache.h

Log message:
Planner failed to be smart about binary-compatible expressions in pathkeys
and hash bucket-size estimation. Issue has been there awhile but is more
critical in 7.4 because it affects varchar columns. Per report from
Greg Stark.

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