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pgsql: Teach nodeMergejoin how to handle DESC and/or NULLS FIRST sort

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Teach nodeMergejoin how to handle DESC and/or NULLS FIRST sort
Date: 2007-01-11 17:19:13
Message-ID: 20070111171913.A73B09FB25D@postgresql.org (view raw or flat)
Thread:
Lists: pgsql-committers
Log Message:
-----------
Teach nodeMergejoin how to handle DESC and/or NULLS FIRST sort orders.
So far only tested by hacking the planner ...

Modified Files:
--------------
    pgsql/src/backend/executor:
        nodeMergejoin.c (r1.85 -> r1.86)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeMergejoin.c.diff?r1=1.85&r2=1.86)

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Subject: pgsql: Improve error wording of ORDER BY in UNION that uses new
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