Subject Re: [firebird-support] Problem with not in queries in Firebird 2.0 RC3
Author Richard Wesley
On Jul 4, 2006, at 06:02, Dmitry Yemanov wrote:

> A workaround is to use a left outer join with IS NULL clause in the
> section.

How is the performance with the left join? This is how we implement
"exclude" filters and we found it to be a significant performance
problem with FB2.
Richard Wesley Software Engineer
Tableau Software hawkfish
tableausoftware com