Back in the day, PG allowed ":" as a generic operator name, making this even worse; but I think the only remaining SQL syntax that could include a colon is array slicing.
Ok, so the behavior of replacing ":unknown" by same cannot be changed. Some fun: \set 1 1 SELECT ('{1,2,3,4,5,6,7,8,9,10,11,12}'::INT[])[1:1]; -- yields 11 -- Fabien. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers