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Re: No hash join across partitioned tables?

From: Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Kris Jurka <books(at)ejurka(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: No hash join across partitioned tables?
Date: 2010-03-02 16:27:14
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackerspgsql-performance
On Tue, Mar 2, 2010 at 4:23 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> > On Thu, Feb 25, 2010 at 7:03 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> >> Partially.  There are stats now but autovacuum is not bright about
> >> when to update them.
> > Is that something you're planning to fix for 9.0?  If not, we at least
> > need to document what we intend for people to do about it.
> I want to look at it, but I'm not sure whether the fix will be small
> enough that we want to put it in during beta.
> I am pretty sure many people will appreciate it, even if it isn't going to
be small.

Is that stat collection across child tables any useful by it self ?


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