Re: Why does this query write to the disk?

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От Tom Lane
Тема Re: Why does this query write to the disk?
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Msg-id 24980.1221764305@sss.pgh.pa.us
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Ответ на Re: Why does this query write to the disk?  ("Scott Carey" <scott@richrelevance.com>)
Список pgsql-performance
"Scott Carey" <scott@richrelevance.com> writes:
> Under what conditions does EXPLAIN ANALYZE report spilling work_mem to
> disk?

For hash joins, it doesn't.  You might be thinking of the additional
reporting we added for sorts recently; but there's no comparable
logging for hash ...

            regards, tom lane

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