|Subject||Re: FB 2.0 / FB1.5 optimizer difference|
> 102 printed, 112 electronic :-):-)
> Theoretically, it could be indexed even now, if T2.C is declared as
> NULL. We could enable it as a short-term solution.great !
> > and :OK, because this is often used
> > select * from t where c IN (select c from t2)
> > this will use index or not ?
> It will.