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Re: plans for bitmap indexes? - Mailing list pgsql-hackers

From Tom Lane
Subject Re: plans for bitmap indexes?
Date
Msg-id 16237.1097690595@sss.pgh.pa.us
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In response to Re: plans for bitmap indexes?  (Josh Berkus <josh@agliodbs.com>)
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Josh Berkus <josh@agliodbs.com> writes:
> BTW, Tom, I was talking to Sean last night and he was saying that our
> current planner cost calculations assume that a 2-column index fetch
> will be twice as expensive as a 1-column index fetch.  Is this right?

No.
        regards, tom lane

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