>
> On Feb 26, 2010, at 0:55 , Дмитрий Фефелов wrote:
>
> > http://developer.postgresql.org/pgdocs/postgres/release-9-0.html
> >
> > Performance section:
> >
> >> Simplify the forms foo <> true and foo <> false to foo = false and
> >> foo = true during query optimization.
> >
> > Will it work correct;ly when foo is NULL?
>
> It shouldn't have any effect: NULL <> anything and NULL = anything is
> NULL
I already got it, dumb question ;))
In response to
pgsql-hackers by date
| Next: | From: Joshua D. Drake | Date: 2010-02-27 03:59:41 |
| Subject: Re: Hot Standby query cancellation and Streaming Replication
integration |
| Previous: | From: Greg Stark | Date: 2010-02-27 03:40:57 |
| Subject: Re: Hot Standby query cancellation and Streaming Replication integration |