On Wed, 17 Oct 2007 12:33:13 -0400
"Merlin Moncure" <mmoncure@xxxxxxxxx> wrote:
> On 10/17/07, Josh Trutwin <josh@xxxxxxxxxxxxxxxxxxx> wrote:
> > On Wed, 17 Oct 2007 11:12:27 -0500
> > "Rodrigo De León" <rdeleonp@xxxxxxxxx> wrote:
> >
> > > On 10/17/07, Josh Trutwin <josh@xxxxxxxxxxxxxxxxxxx> wrote:
> > > > nm - I just wrote a function - though curious if this is the
> > > > most effecient way:
> > >
> > > If you only want TRUE or FALSE, you can use '&&':
> > >
> > > t=# SELECT '{1,2}'::INT[] && '{2,3}'::INT[];
> > > ?column?
> > > ----------
> > > t
> > > (1 row)
> >
> > Is that 8.2 or above? I'm on 8.1.10:
>
> introduced in 8.2
http://www.postgresql.org/docs/8.2/static/functions-array.html
Thanks - yet another reason to upgrade - waiting till 8.3 tho.
Josh
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
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