> 
> vac=> select count(*) from test where exists (select t1.y from test t1
where t1.y = x);
>
^
> Is this correlated subquery or not ?

No! Informix behaves in the same manner, I think it is ok.

Andreas

Fri, 6 Feb 1998 17:29:10 +0100
Zeugswetter Andreas DBT <Andreas.Zeugswetter@telecom.at>
Re: what standard say ...