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Re: [PERFORM] Bad n_distinct estimation; hacks suggested? - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [PERFORM] Bad n_distinct estimation; hacks suggested?
Date
Msg-id 17677.1114575276@sss.pgh.pa.us
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In response to Re: [PERFORM] Bad n_distinct estimation; hacks suggested?  (Rod Taylor <pg@rbt.ca>)
Responses Re: [PERFORM] Bad n_distinct estimation; hacks suggested?  (Greg Stark <gsstark@mit.edu>)
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Rod Taylor <pg@rbt.ca> writes:
> If when we have partitions, that'll be good enough. If partitions aren't
> available this would be quite painful to anyone with large tables --
> much as the days of old used to be painful for ANALYZE.

Yeah ... I am very un-enthused about these suggestions to make ANALYZE
go back to doing a full scan ...
        regards, tom lane

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