Re: Window functions speed

Поиск
Список
Период
Сортировка
От Michael Lewis
Тема Re: Window functions speed
Дата
Msg-id CAHOFxGr4Gkd2FpFuLX7BC7cjxp_-wCA9wwcBnQx8EccyKDmLzA@mail.gmail.com
обсуждение исходный текст
Ответ на Window functions speed  (Zahir Lalani <ZahirLalani@oliver.agency>)
Ответы RE: Window functions speed  (Zahir Lalani <ZahirLalani@oliver.agency>)
Список pgsql-general
Where's the query? Are you able to run explain analyze so we can see estimates vs actual counts? What version are you using?

Can you share explain analyze before and after the window function? 

I mean, that limit at the top makes me think it is doing a lot less work without the window function, vs examining all candidate rows if we need to count them all. What are you using that count for anyway? Pagination?

В списке pgsql-general по дате отправления:

Предыдущее
От: Joe Conway
Дата:
Сообщение: Re: Interpolation problem - pg 12.4 - full correct version!
Следующее
От: Pól Ua Laoínecháin
Дата:
Сообщение: Re: Interpolation problem - pg 12.4 - full correct version!