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help / color / mirror / Atom feedFrom: Don Seiler <[email protected]>
To: Peter Geoghegan <[email protected]>
Cc: Postgres General <[email protected]>
Subject: Re: Index Partition Size Double of its Table Partition?
Date: Wed, 30 Oct 2024 11:28:54 -0500
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On Wed, Oct 30, 2024 at 11:23 AM Peter Geoghegan <[email protected]> wrote:
>
> If a substantial amount of the index was written by CREATE INDEX (and
> not by retail inserts) then my theory is unlikely to be correct. It
> could just be that you managed to absorb most inserts in one
> partition, but not in the other. That's probably possible when there
> are only relatively small differences in the number of inserts that
> need to use of the space left behind by fillfactor in each case. In
> general page splits tend to come in distinct "waves" after CREATE
> INDEX is run.
>
What do you mean by "absorb" the inserts?
It sounds like the answer will be "No", but: Would rebuilding the index
after the month-end (when inserts have stopped on this partition) change
anything?
Don.
--
Don Seiler
www.seiler.us
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Subject: Re: Index Partition Size Double of its Table Partition?
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