Re: Cast null to int4 upgrading from Version 7.2 - Mailing list pgsql-patches

Jim Nasby wrote:
> As a less invasive alternative, I *think* you could create an SQL
> function for casting text to int that treated '' as 0, and then
> replace the built-in CAST with that.

Won't work.  You need to replace the data type input function.

--
Peter Eisentraut
http://developer.postgresql.org/~petere/