The following bug has been logged online: Bug reference: 6202 Logged by: Roman Email address: zo...@oe-it.ru PostgreSQL version: 9.0.4 Operating system: Win7x64 Description: type of union column selection bug Details:
Query select null union select 4 is Ok but select null union select null union select 4 is Fail i think it`s a bug because you choose type in second query twice null and null -> text text and int -> fail and i think what check type category is not true, because i can`t create implicit cast to resolve some problems, like select 'a' union select 4 if i have implicit cast int->text i think it must work!! Sorry second part is not bug it`s a feature but it`s my problem too -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs