From 9d23d7cdafb3540aa2de9310c7f1afee87dfc2f2 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Tue, 4 Oct 2011 21:47:07 -0400
Subject: [PATCH] Explain COALESCE example in the docs.

---
 doc/src/sgml/func.sgml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 0b6a109432..2f307c2b12 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -10015,6 +10015,8 @@ SELECT ... WHERE CASE WHEN x &lt;&gt; 0 THEN y/x &gt; 1.5 ELSE false END;
 <programlisting>
 SELECT COALESCE(description, short_description, '(none)') ...
 </programlisting>
+   This returns <varname>description</> if it is not null, or
+   <varname>short_description</> if it is not null, or <literal>(none)</>.
   </para>
 
    <para>