Re: Optimizer bug in 8.1.0? - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Optimizer bug in 8.1.0?
Date
Msg-id 13592.1132361325@sss.pgh.pa.us
Whole thread Raw
In response to Optimizer bug in 8.1.0?  (Alexey Slynko <slynko@tronet.ru>)
List pgsql-hackers
Alexey Slynko <slynko@tronet.ru> writes:
> Any suggestions?

Fix contrib/intarray to have some selectivity estimation procedures
for its operators?

Without any way to estimate the number of rows matching the @@
condition, the optimizer can hardly be expected to guess right...
        regards, tom lane


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