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Re: understanding bitmap index benefit - Mailing list pgsql-hackers

From Tom Lane
Subject Re: understanding bitmap index benefit
Date
Msg-id 4406.1116520182@sss.pgh.pa.us
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In response to Re: understanding bitmap index benefit  (Oleg Bartunov <oleg@sai.msu.su>)
Responses Re: understanding bitmap index benefit  (Oleg Bartunov <oleg@sai.msu.su>)
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Oleg Bartunov <oleg@sai.msu.su> writes:
> I tried to see io statistics, but it was weird in 8.0X and in  8.1dev I still
> don't understand it :)

We aren't yet updating the io statistics for bitmap scans properly.
There was a thread about this but it petered out without any resolution
about what we should do ...
        regards, tom lane

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