I wrote:
> (2) Reconsider whether last-vacuum-time should be sent to the collector
> unconditionally.
Actually, now that I look, the collector already contains this logic:
/*
* Don't create either the database or table entry if it doesn't already
* exist. This avoids bloating the stats with entries for stuff that is
* only touched by vacuum and not by live operations.
*/
and ditto for analyze messages. So my idea that the addition of
last-vac-time was causing an increase in the statistics file size
compared to 8.1 seems wrong.
How large is your $PGDATA/global/pgstat.stat file, anyway?
regards, tom lane
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