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Re: bitmap scan and explain analyze - Mailing list pgsql-hackers

From Tom Lane
Subject Re: bitmap scan and explain analyze
Date
Msg-id 8728.1115131028@sss.pgh.pa.us
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In response to bitmap scan and explain analyze  (Tatsuo Ishii <t-ishii@sra.co.jp>)
Responses Re: bitmap scan and explain analyze  (Tatsuo Ishii <t-ishii@sra.co.jp>)
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Tatsuo Ishii <t-ishii@sra.co.jp> writes:
> Why actual rows=0?

I couldn't think of any reasonably cheap way to count the actual rows
(especially in the presence of lossy bitmaps), so I just punted.
        regards, tom lane

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