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pgsql: Department of marginal improvements: teach tupconvert.c to avoid

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Department of marginal improvements: teach tupconvert.c to avoid
Date: 2009-08-17 20:34:31
Message-ID: 20090817203431.A51E175331E@cvs.postgresql.org (view raw or flat)
Thread:
Lists: pgsql-committers
Log Message:
-----------
Department of marginal improvements: teach tupconvert.c to avoid doing a
physical conversion when there are dropped columns in the same places in
the input and output tupdescs.  This avoids possible performance loss from
the recent patch to improve dropped-column handling, in some cases where
the old code would have worked.

Modified Files:
--------------
    pgsql/src/backend/access/common:
        tupconvert.c (r1.1 -> r1.2)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/common/tupconvert.c?r1=1.1&r2=1.2)

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