-<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.506 2010/02/23 16:14:25 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.507 2010/03/03 22:28:42 momjian Exp $ -->
<chapter id="functions">
<title>Functions and Operators</title>
</row>
<row>
<entry><literal>Q</literal></entry>
- <entry>quarter</entry>
+ <entry>quarter (ignored by <function>to_date</> and <function>to_timestamp</>)</entry>
</row>
<row>
<entry><literal>RM</literal></entry>
even if it contains pattern key words. For example, in
<literal>'"Hello Year "YYYY'</literal>, the <literal>YYYY</literal>
will be replaced by the year data, but the single <literal>Y</literal> in <literal>Year</literal>
- will not be.
+ will not be. In <function>to_date</>, <function>to_number</>,
+ and <function>to_timestamp</>, double-quoted strings skip the number of
+ input characters contained in the string, e.g. <literal>"XX"</>
+ skips two input characters.
</para>
</listitem>
/* -----------------------------------------------------------------------
* formatting.c
*
- * $PostgreSQL: pgsql/src/backend/utils/adt/formatting.c,v 1.168 2010/02/26 02:01:08 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/adt/formatting.c,v 1.169 2010/03/03 22:28:42 momjian Exp $
*
*
* Portions Copyright (c) 1999-2010, PostgreSQL Global Development Group
s += SKIP_THth(n->suffix);
break;
case DCH_Q:
-
/*
- * We ignore Q when converting to date because it is not
- * normative.
+ * We ignore 'Q' when converting to date because it is
+ * unclear which date in the quarter to use, and some
+ * people specify both quarter and month, so if it was
+ * honored it might conflict with the supplied month.
+ * That is also why we don't throw an error.
*
* We still parse the source string for an integer, but it
* isn't stored anywhere in 'out'.