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From monalee_dba
Subject BitMap Heap Scan & BitMap Index Scan
Date
Msg-id 1384068734255-5777632.post@n5.nabble.com
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Responses Re: BitMap Heap Scan & BitMap Index Scan  (Michael Paquier <michael.paquier@gmail.com>)
Re: BitMap Heap Scan & BitMap Index Scan  (Torsten Förtsch <torsten.foertsch@gmx.net>)
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I would like to know, What is BitMap Heap Scan & BitMap Index Scan? When I use EXPLAIN for query, which has LEFT JOIN with 4 different table then some time query planner uses Bitmap Heap Scan and some time Bitmap Index Scan?
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