Log Message:
-----------
Improve error wording of ORDER BY in UNION that uses new expressions in
ORDER BY.

Modified Files:
--------------
    pgsql/src/backend/parser:
        analyze.c (r1.355 -> r1.356)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/analyze.c.diff?r1=1.355&r2=1.356)

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Next:	From: Bruce Momjian	Date: 2007-01-11 20:04:50
	Subject: pgsql: Update UNION/INTERSECT/EXCEPT ORDER BY error wording for
Previous:	From: Tom Lane	Date: 2007-01-11 17:19:13
	Subject: pgsql: Teach nodeMergejoin how to handle DESC and/or NULLS FIRST sort