Re: Suggestion for optimization - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Suggestion for optimization
Date
Msg-id 9048.1018035439@sss.pgh.pa.us
Whole thread Raw
In response to Re: Suggestion for optimization  (Doug McNaught <doug@wireboard.com>)
Responses Re: Suggestion for optimization  (Jeff Davis <list-pgsql-hackers@dynworks.com>)
List pgsql-hackers
Doug McNaught <doug@wireboard.com> writes:
> "Dann Corbit" <DCorbit@connx.com> writes:
>> It would be nice if total table cardinality could be maintained live.

> How would this work with MVCC?

It wouldn't.  That's why it's not there.  Under MVCC, table cardinality
is in the eye of the beholder...
        regards, tom lane


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