Re: COPY FROM WHEN condition

Поиск
Список
Период
Сортировка
От Surafel Temesgen
Тема Re: COPY FROM WHEN condition
Дата
Msg-id CALAY4q9Vk3_jscde7Jptrppgomb_WDT2tAr4wsR0C_77LrKO7g@mail.gmail.com
обсуждение исходный текст
Ответ на Re: COPY FROM WHEN condition  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
Ответы Re: COPY FROM WHEN condition  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
Список pgsql-hackers
Дерево обсуждения


On Thu, Nov 29, 2018 at 2:17 AM Tomas Vondra <tomas.vondra@2ndquadrant.com> wrote:

(c) allow VOLATILE functions in the FILTER clause, but change the
behavior to make the behavior sane
 
 Did changing the behavior means getting new snapshot before evaluating a tuple to ensure the function sees results of any previously executed queries or there are   other mechanism that can make the behavior sane?  

Which leaves us with (b) and (c). Clearly, (b) is simpler to implement,
because it (c) needs to do the detection too, and then some additional
stuff. I'm not sure how much more complex (c) is, compared to (b).

The attache patch implement option b prohibit VOLATILE functions but i am open to change
regards
Surafel
Вложения

В списке pgsql-hackers по дате отправления:

Предыдущее
От: Dmitry Dolgov
Дата:
Сообщение: Re: [HACKERS] Support for Secure Transport SSL library on macOS asOpenSSL alternative
Следующее
От: Stas Kelvich
Дата:
Сообщение: Re: Global snapshots