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Re: Unhappy about API changes in the no-fsm-for-small-rels patch - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Unhappy about API changes in the no-fsm-for-small-rels patch
Date
Msg-id 17158.1557158721@sss.pgh.pa.us
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In response to Re: Unhappy about API changes in the no-fsm-for-small-rels patch  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: Unhappy about API changes in the no-fsm-for-small-rels patch  (Robert Haas <robertmhaas@gmail.com>)
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Robert Haas <robertmhaas@gmail.com> writes:
> ... I guess you could incur the overhead repeatedly if the relation starts
> out at 1 block, grows to 4, is vacuumed back down to 1, lather, rinse,
> repeat, but is that actually realistic?

While I've not studied the patch, I assumed that once a relation has an
FSM it won't disappear.  Making it go away again if the relation gets
shorter seems both fairly useless and a promising source of bugs.

            regards, tom lane

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