Explain COALESCE example in the docs.

2011-10-04 21:47:07 -04:00 · 2011-10-04 21:47:07 -04:00 · 9d23d7cdaf
commit 9d23d7cdaf
parent 41e461d36f
1 changed files with 2 additions and 0 deletions
--- 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>