Aggregate

Aleksey Dashevsky <postgres@luckynet.co.il>

From: Aleksey Dashevsky <postgres@luckynet.co.il>
To: pgsql-sql@postgreSQL.org
Date: 1998-05-26T13:12:46Z
Lists: pgsql-sql
hi!
Just curious: how could I create an aggregate that match to any postgresql
type (something like "count")? 

Thanks
Al.