Re: Optimizer improvements: to do or not to do?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Say42" <andrews42(at)yandex(dot)ru>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Optimizer improvements: to do or not to do?
Date: 2006-09-13 05:04:46
Message-ID: 6032.1158123886@sss.pgh.pa.us
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"Say42" <andrews42(at)yandex(dot)ru> writes:
> Usual case in data request is a joining detail and some master tables
> into a single relation.

Optimizing on the basis of only one example is seldom a good idea...
and I think you are falling into that trap by supposing that there
is a "usual case".

regards, tom lane

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