Re: Re: Does PostgreSQL support EXISTS?

Поиск
Список
Период
Сортировка
От Tom Lane
Тема Re: Re: Does PostgreSQL support EXISTS?
Дата
Msg-id 26985.992450315@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: Re: Does PostgreSQL support EXISTS?  (Bruce Momjian <pgman@candle.pha.pa.us>)
Список pgsql-general
Bruce Momjian <pgman@candle.pha.pa.us> writes:
> Are we talking about converting IN to EXISTS for performance reasons?

No, we're talking about implementing both IN and EXISTS as special forms
of join.

            regards, tom lane

В списке pgsql-general по дате отправления: