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Re: sum(int4)/sum(int2) improvement

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Atsushi Ogawa <a_ogawa(at)hi-ho(dot)ne(dot)jp>
Cc: pgsql-patches(at)postgresql(dot)org
Subject: Re: sum(int4)/sum(int2) improvement
Date: 2005-09-01 13:42:10
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-patches
Atsushi Ogawa <a_ogawa(at)hi-ho(dot)ne(dot)jp> writes:
> An attached patch uses AggState->aggcontext instead of per-tuple
> context to allocate the data. As a result, per-tuple context is not
> used, and the cycles of AllocSetReset is reduced.

Why is this better than the fix already in place?

			regards, tom lane

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