Re: avg(int2) and avg(int8) micro-opt

Поиск
Список
Период
Сортировка
От Neil Conway
Тема Re: avg(int2) and avg(int8) micro-opt
Дата
Msg-id 4251D746.30601@samurai.com
обсуждение исходный текст
Ответ на Re: avg(int2) and avg(int8) micro-opt  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: avg(int2) and avg(int8) micro-opt  (Tom Lane <tgl@sss.pgh.pa.us>)
Re: avg(int2) and avg(int8) micro-opt  (Neil Conway <neilc@samurai.com>)
Список pgsql-patches
Tom Lane wrote:
> Why only those two?  Might as well make all the accum functions look alike.

Yeah, there might be some others we could improve. float4_accum() and
float8_accum() look like they could be improved pretty easily, and
do_numeric_accum() should also be fixable with some hackery. I suppose
it's also worth optimizing int2_sum(), int4_sum() and int8_sum(). I'll
send a patch for this later today or tomorrow. Are there any other
transition functions where we can apply this technique?

BTW, int2_avg_accum() and int4_avg_accum() patch applied to HEAD.

-Neil

В списке pgsql-patches по дате отправления:

Предыдущее
От: Tom Lane
Дата:
Сообщение: Re: DELETE ... USING
Следующее
От: Neil Conway
Дата:
Сообщение: Re: DELETE ... USING