On Tue, Jan 06, 2009 at 11:13:59PM +0530, Gurjeet Singh wrote:
> If we consider the second branch of UNION ALL of both the queries above, if
> "select '' " yields a text column, then so should a "select * from (select
> '')".
The problem is ofcourse that "select ''" doesn't produce a text column
in postgres. This generally works fine, except in the case of UNION
where none of the branches provide the necessary type info.
Have a nice day,
--
Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/
> Please line up in a tree and maintain the heap invariant while
> boarding. Thank you for flying nlogn airlines.
