From: | "Jim C(dot) Nasby" <jim(at)nasby(dot)net> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Mark Kirkwood <markir(at)paradise(dot)net(dot)nz>, "H(dot)J(dot) Sanders" <hjs(at)rmax(dot)nl>, pgsql-performance(at)postgresql(dot)org |
Subject: | Re: FW: Simple join optimized badly? |
Date: | 2006-10-12 16:37:47 |
Message-ID: | 20061012163747.GG28647@nasby.net |
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Thread: | |
Lists: | pgsql-performance |
On Thu, Oct 12, 2006 at 10:44:20AM -0400, Tom Lane wrote:
> "Jim C. Nasby" <jim(at)nasby(dot)net> writes:
> > If someone's going to commit to putting effort into improving the
> > planner then that's wonderful. But I can't recall any significant
> > planner improvements since min/max (which I'd argue was more of a bug
> > fix than an improvement).
>
> Hmph. Apparently I've wasted most of the last five years.
Ok, now that I've actually looked at the release notes, I take that back
and apologize. But while there's a lot of improvements that have been
made, there's still some seriously tough problems that have been talked
about for a long time and there's still no "light at the end of the
tunnel", like how to handle multi-column statistics.
--
Jim Nasby jim(at)nasby(dot)net
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
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