Added to TODO: * Improve reporting of UNION type mismatches
http://archives.postgresql.org/pgsql-hackers/2007-04/msg00944.php http://archives.postgresql.org/pgsql-hackers/2008-03/msg00597.php --------------------------------------------------------------------------- Peter Eisentraut wrote: > So I was informed today that UNION types integer and text cannot be > matched. Alright, but it failed to tell which particular expressions > in this 3-branch, 30-columns-each UNION clause in a 100-line statement > it was talking about. So I made the attached patch to give some better > pointers. Example: > > peter=# values(0,1), (1::bigint,2), ('text'::text,3); > ERROR: 42804: VALUES types bigint at position 2 and text at position 3 > cannot be matched in instance 1 > > I'm not sure about the terminology "position" and "instance"; they're > just two coordinates to get at the problem. > > None of this will help if you have multiple unrelated clauses that > invoke select_common_type(), but that might be better handled using the > parser location mechanism. > > Comments? > > -- > Peter Eisentraut > http://developer.postgresql.org/~petere/ [ Attachment, skipping... ] > > ---------------------------(end of broadcast)--------------------------- > TIP 7: You can help support the PostgreSQL project by donating at > > http://www.postgresql.org/about/donate -- Bruce Momjian <[EMAIL PROTECTED]> http://momjian.us EnterpriseDB http://postgres.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + - Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
