David Fetter wrote:
On Tue, Sep 16, 2008 at 08:59:08PM -0400, Alvaro Herrera wrote:
Simon Riggs wrote:
Disabling autovacuum can have catastrophic effects, since it disables
the ANALYZing of tables.
Can we have a mode where we disable autoVACUUM yet enable autoANALYZE?
You mean something like
autovacuum = on / off / analyze ?
We can certainly do that, but is there buy-in?
+1
Having autovacuum on during bulk loads can really tank performance,
but having autoanalyze on is good :)
Isn't autoanalyze a waste of time during a bulk load? Seems better to
run ANALYZE manually at the end.
Adding that option feels natural to me, but it is a rather blunt
instrument. You can already do that with pg_autovacuum, though that
interface isn't very user-friendly. I whole-heartedly support the idea
of controlling autovacuum with storage options, e.g "ALTER TABLE ...
WITH (autoanalyze = on)".
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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