|Subject||Re: [firebird-support] Problem with not in queries in Firebird 2.0 RC3|
"Richard Wesley" <hawkfish@...> wrote:
>Better than with the non-indexed NOT IN.
> How is the performance with the left join?
> This is how we implementA test case is welcome.
> "exclude" filters and we found it to be a significant performance
> problem with FB2.