Re: Re: 7.2 items - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Re: 7.2 items
Date
Msg-id 200106072005.f57K5Jx00380@candle.pha.pa.us
Whole thread Raw
In response to RE: Re: 7.2 items  (Mike Mascari <mascarm@mascari.com>)
List pgsql-hackers
> And in addition,
> 
> If you submitted the query:
> 
> SELECT * FROM addresses WHERE state = 'OH'
> AND areacode = '614'
> 
> Then, with bitmap indexes, the bitmaps are just logically ANDed 
> together, and the final bitmap determines the matching rows.

Message added to TODO.detail.  The use of AND seems like a very nice
optimization possible with bitmap indexes.  Thanks.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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