Log Message:
-----------
Add trivial NULL statement to plpgsql, for Oracle compatibility.
Modified Files:
--------------
pgsql-server/doc/src/sgml:
plpgsql.sgml (r1.45 -> r1.46)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/src/sgml/plpgsql.sgml.diff?r1=1.45&r2=1.46)
pgsql-server/src/pl/plpgsql/src:
gram.y (r1.59 -> r1.60)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/pl/plpgsql/src/gram.y.diff?r1=1.59&r2=1.60)