On Fri, Jan 11, 2008 at 07:46:36PM -0500, Merlin Moncure wrote:
> On Jan 11, 2008 6:19 PM, Gavin Sherry <[EMAIL PROTECTED]> wrote:
> > Hi all,
> >
> > Many of you will have read the dynamic partitioning thread here:
> >
> > http://archives.postgresql.org/pgsql-hackers/2008-01/msg00028.php
> >
> > I've proposed an alternative approach, which we've called declarative
> > partitioning which is grammar based. This grammar was developed by Jeff
> > Cohen at Greenplum with some assistance from myself. It is to be
> > completely open source.
>
>
> I like the syntax, but what I really want to know is how well this is
> going to work with the query planner. The current 8.x table
> partitioning mechanism has a lot of issues...it causes more problems
> than it solves unless you are willing to strictly control how you
> query the tables...I usually end up rolling my own.
The syntax is half the problem, performance is the other. I will bring
the performance issues up in another thread. Yes, we are confident that
we can address the performance issues that rule out the existing
partitioning for many applications. We need it for our own stuff! :P
Thanks,
Gavin
---------------------------(end of broadcast)---------------------------
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
match
