Re: [PATCH] Prevent pg_dump running out of memory

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От Tom Lane
Тема Re: [PATCH] Prevent pg_dump running out of memory
Дата
Msg-id 21677.998944610@sss.pgh.pa.us
обсуждение исходный текст
Ответ на [PATCH] Prevent pg_dump running out of memory  (Martijn van Oosterhout <kleptog@svana.org>)
Ответы Re: [PATCH] Prevent pg_dump running out of memory
Список pgsql-patches
Martijn van Oosterhout <kleptog@svana.org> writes:
> This patch replaces the simple SELECT * with a cursor that fetches 1,000 rows
> at a time. The 1,000 was chosen because it was small enough to test but I
> think realisitically 10,000 wouldn't be too much.

Applied.  However, I went the other way: I reduced the 1000 to 100.
I doubt it'll make much difference in performance, and with TOAST
available I can believe people might have multi-megabyte rows.

I also added a cursor CLOSE command, just to be a neatnik.  It's
probably not critical given that the same cursor name is used each
time, but still...

            regards, tom lane

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