pgsql: Improve documentation for COALESCE and NULLIF.

From: momjian(at)postgresql(dot)org (Bruce Momjian)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Improve documentation for COALESCE and NULLIF.
Date: 2005-11-28 23:18:49
Message-ID: 20051128231849.4263C9DCC33@postgresql.org
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Log Message:
-----------
Improve documentation for COALESCE and NULLIF. Add references for NVL
and IFNULL.

Backpatch to 8.1.X.

Modified Files:
--------------
pgsql/doc/src/sgml:
func.sgml (r1.295 -> r1.296)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml.diff?r1=1.295&r2=1.296)

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