Postgres Pro
Downloads
Home   >   mailing lists

Re: sum(int4)/sum(int2) improvement - Mailing list pgsql-patches

From Tom Lane
Subject Re: sum(int4)/sum(int2) improvement
Date
Msg-id 12311.1125582130@sss.pgh.pa.us
Whole thread Raw
In response to sum(int4)/sum(int2) improvement  (Atsushi Ogawa <a_ogawa@hi-ho.ne.jp>)
Responses Re: sum(int4)/sum(int2) improvement
List pgsql-patches
Tree view 
Atsushi Ogawa <a_ogawa@hi-ho.ne.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

pgsql-patches by date:

Previous
From: Atsushi Ogawa
Date:
Subject: sum(int4)/sum(int2) improvement
Next
From: Atsushi Ogawa
Date:
Subject: Re: sum(int4)/sum(int2) improvement