Log Message:
-----------
Add regression test inspired by Sebastian Bck.
Modified Files:
--------------
pgsql-server/src/test/regress/expected:
rules.out (r1.92 -> r1.93)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/regress/expected/rules.out.diff?r1=1.92&r2=1.93)
pgsql-server/src/test/regress/sql:
rules.sql (r1.29 -> r1.30)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/regress/sql/rules.sql.diff?r1=1.29&r2=1.30)