Log Message:
-----------
Added documentation for xmlagg function.
Tags:
----
REL8_3_STABLE
Modified Files:
--------------
pgsql/doc/src/sgml:
func.sgml (r1.419.2.2 -> r1.419.2.3)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml?r1=1.419.2.2&r2=1.419.2.3)