Re: New style of hash join proposal

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Gregory Stark <stark(at)enterprisedb(dot)com>
Cc: "pgsql-hackers list" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: New style of hash join proposal
Date: 2008-03-17 19:43:32
Message-ID: 25307.1205783012@sss.pgh.pa.us
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Gregory Stark <stark(at)enterprisedb(dot)com> writes:
> "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
>> I don't understand which part of "we can do that now" isn't clear to you.

> Uh, except we can't.

I already demonstrated that we could. If the problem is that the
planner is cutting over from one plan type to the other at the wrong
rowcount because of bad cost estimates, that's a different issue
altogether.

regards, tom lane

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