Thanks both for your response. Here is a screen shot with the table definition and reproducible example:
mm=# \d signon Table "public.signon" Column | Type | Modifiers ---------+-----------------------+----------- name | character varying(25) | not null user_id | bigint | not null passwd | character varying(30) | not null Indexes: signon_pkey primary key btree (user_id), signon_name_key unique btree (name) mm=# insert into signon values ('dump',3434343,'wdp'); INSERT 256495 1 mm=# delete from signon where user_id='3434343'; ERROR: get_typdefault: failed to lookup type 0 mm=# The version information is the following: Welcome to psql 7.3.4, the PostgreSQL interactive terminal. on cygwin with Window 2000. Tom Lane wrote >You'll need to provide a self-contained test case. >We've seen bugs with similar symptoms associated with dropped columns, but AFAIK they >are all fixed in 7.3.4. Joe Conway wrote >Please post the results of \d tablename, the definitions of > any trigger functions (particularly any "on delete" >triggers), and if possible a complete reproducible example. ____________________________________________________________ Free Poetry Contest. Win $10,000. Submit your poem @ Poetry.com! http://ad.doubleclick.net/clk;6750922;3807821;l?http://www.poetry.com/contest/contest.asp?Suite=A59101 ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html