Re: sort_mem affect on inserts? - Mailing list pgsql-performance

From Josh Berkus
Subject Re: sort_mem affect on inserts?
Date
Msg-id 200411171407.30795.josh@agliodbs.com
Whole thread Raw
In response to sort_mem affect on inserts?  ("David Parker" <dparker@tazznetworks.com>)
Responses Re: sort_mem affect on inserts?
List pgsql-performance
David,

> I understand that the sort_mem conf setting affects queries with order by,
> etc., and the doc mentions that it is used in create index. Does sort_mem
> affect the updating of indexes, i.e., can the sort_mem setting affect the
> performance of inserts?

Only if the table has Foriegn Keys whose lookup might require a large sort.
Otherwise, no.

--
--Josh

Josh Berkus
Aglio Database Solutions
San Francisco

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