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Re: Bad planner results - Mailing list pgsql-general

From Tom Lane
Subject Re: Bad planner results
Date
Msg-id 3566.1093359433@sss.pgh.pa.us
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In response to Bad planner results  (Greg Stark <gsstark@mit.edu>)
List pgsql-general
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Greg Stark <gsstark@mit.edu> writes:
> I think this is just a bad case of "nested loops are costed wrong".

Looks to me like a statistical failure.  Why does it think there will be
4000 rows out of that join when there are only 93?

            regards, tom lane

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