Re: Checking of constraints via subqueries? - Mailing list pgsql-general

On Thu, Feb 17, 2005 at 04:37:43PM +0100, Wolfgang Drotschmann wrote:

> "...CHECK expressions cannot contain subqueries nor refer to
>  variables other than VALUE."

In experiments I've defined a domain's CHECK expression to call a
function that makes queries.  It worked in simple tests; I don't
know if it'll work in the general case.

--
Michael Fuhr
http://www.fuhr.org/~mfuhr/