In the last exciting episode, sfrost@snowman.net (Stephen Frost) wrote:
> Would it make sense for vacuum to keep a list of 'last vacuumed' or
> similar so that it doesn't vacuum a table which hasn't changed since
> the last time it was vacuum'd? Seems to me that would be a pretty
> simple optimization which would help out alot on systems which have
> both a large set of tables which are relatively static and data which
> changes a great deal. This is especially true for vacuum full which
> also locks the table.
See, in 7.4, the "pg_autovacuum" daemon.
It does much what you suggest...
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