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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Jim C. Nasby <jim@nasby.net>
Cc: Chris Browne <cbbrowne@acm.org>
Cc: pgsql-performance@postgresql.org
Subject: Re: Simple join optimized badly?
Date: Mon, 09 Oct 2006 18:39:55 -0400
Message-ID: <9670.1160433595@sss.pgh.pa.us> (raw)
In-Reply-To: <20061009211827.GL72517@nasby.net>
References: <45274A77.7080005@modgraph-usa.com>
	<18722.1160236300@sss.pgh.pa.us>
	<5f820f750610071850o6ed0b19o162d65d1987b2a8c@mail.gmail.com>
	<200610081605.03501.josh@agliodbs.com>
	<4529A0CA.8000904@modgraph-usa.com>
	<4529B6D0.2010206@paradise.net.nz>
	<4529B7E8.8080606@modgraph-usa.com>
	<604pud8ise.fsf@dba2.int.libertyrms.com>
	<20061009211827.GL72517@nasby.net>

"Jim C. Nasby" <jim@nasby.net> writes:
> I'll also say that a very simple hinting
> language (ie: allowing you to specify access method for a table, and
> join methods) would go a huge way towards enabling app developers to get
> stuff done now while waiting for all these magical optimizer
> improvements that have been talked about for years.

Basically, the claim that it'll be both easy and useful is what I think
is horsepucky ... let's see a detailed design if you think it's easy.

			regards, tom lane



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