"Wes" <wespvp@msg.bt.com> writes:
> I guess I should also turn off fsync for the duration.
It shouldn't make a big difference. fsync only happens at the end of a
transaction or at a checkpoint.
Since you're concerned with very long operations the slowdown at the end of
the transaction won't make a big difference.
Checkpoints could be an issue, but you would be better off just raising
checkpoint_segments and/or checkpoint_timeout to make sure you don't get one
more often than once every few minutes when you're doing large operations like
this.
--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com
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