> create view pg_locks as select l.relation, l.database, l.backendpid,

 > create view pg_locks as select l.relation, l.database, l.backendpid,
 > l.mode, l.isgranted from pg_lock_info() as l(relation oid, database oid,
 > backendpid int4, mode text, isgranted bool);
 > ERROR:  badly formatted planstring "COLUMNDEF "...
 >

Reported by Neil Conway -- I never implemented readfuncs.c support for
ColumnDef or TypeName, which is needed so that views can be created on
functions returning type RECORD. Here's a patch.

Joe Conway