Re: pg_class.reltuples of brin indexes

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От Alvaro Herrera
Тема Re: pg_class.reltuples of brin indexes
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Msg-id 20180327142803.5tzvrkouc43arddc@alvherre.pgsql
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Ответ на Re: pg_class.reltuples of brin indexes  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: pg_class.reltuples of brin indexes  (Masahiko Sawada <sawada.mshk@gmail.com>)
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Tom Lane wrote:
> Tomas Vondra <tomas.vondra@2ndquadrant.com> writes:
> > I think number of index tuples makes sense, as long as that's what the
> > costing needs. That is, it's up to the index AM to define it. But it
> > clearly should not flap like this ...
> 
> > And it's not just BRIN. This is what I get with a GIN index:
> 
> Sounds like the same kind of thing we just fixed for SP-GiST :-(

Most likely I modelled the BRIN code after GIN.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


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