Re: How to speedup intarray aggregate function?

Поиск
Список
Период
Сортировка
От Alvaro Herrera
Тема Re: How to speedup intarray aggregate function?
Дата
Msg-id 20071023135509.GL5772@alvh.no-ip.org
обсуждение исходный текст
Ответ на Re: How to speedup intarray aggregate function?  ("Dmitry Koterov" <dmitry@koterov.ru>)
Список pgsql-general
Dmitry Koterov escribió:
> I have written in C all needed contrib functions: intarray.bidx() (binary
> search in sorted list) and intagg.int_agg_append_state (bufferized appending
> of one array to another without linear memory reallocation). The speed now
> is great: in one case with intersection of 100000 and 15000 arrays it become
> 30ms instead of 1600 ms (50 times faster).
>
> Few days later, after complex testing, I'll publish complete patches in
> pgsql-hackers maillist.

Did you already?

--
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

В списке pgsql-general по дате отправления:

Предыдущее
От: Alvaro Herrera
Дата:
Сообщение: Re: autovacuum and locks
Следующее
От: Tom Lane
Дата:
Сообщение: Re: Bitmap Heap scan 8.1/8.2