Re: bad performances using hashjoin

From: Mischa <mischa(dot)Sandberg(at)telus(dot)net>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: bad performances using hashjoin
Date: 2005-02-21 17:11:34
Message-ID: 1109005894.421a16469b1c5@webmail.telus.net
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Quoting Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:

> Klint Gore <kg(at)kgb(dot)une(dot)edu(dot)au> writes:
> > Is having an order by in a view legal?
>
> Not according to the SQL spec, but PG has allowed it for several releases.
> (The same goes for ORDER BY in a sub-select, which is actually pretty
> much the same thing ...)

Umm... if you implement LIMIT in a subselect, it becomes highly meaningful (nad
useful.

Is this a case of one nonstandard feature being the thin edge of the wedge
for another?
--
"Dreams come true, not free."

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