On Tuesday 19 December 2000 22:11, Jeff Davis wrote: > > create function bool_to_int(bool) returns int as 'select 1 as result > where $1 union select 0 as result where not $1;' language 'sql'; This is an alternative way to make the bool_to_int, but it doesn't solve your problem unless the union was causing a bug: CREATE FUNCTION bool_to_int(BOOLEAN) RETURNS INTEGER AS ' SELECT CASE WHEN $1 THEN 1 ELSE 0 END AS result; ' LANGUAGE 'SQL';