| Subject | Re: [firebird-support] FB 2.0 / FB1.5 optimizer difference |
|---|---|
| Author | Dmitry Yemanov |
| Post date | 2006-12-03T04:03:47Z |
Hans wrote:
Dmitry
>Just beware that NOT IN handles NULLs differently from NOT EXISTS.
> I converted the few IF NOT IN instances
> to IF NOT EXISTS and it all seems to be
> up to speed again
Dmitry