-----Original Message-----
From: pgsql-performance-ow...@postgresql.org [mailto:pgsql-performance- A
much 
>> better index to answer your query is (city_id, house_id, floor_id) - 
>> then it can just look up straight away. Instead of the index returning 
>> 200000 rows to check, it will return just the 2000.

Shouldn't BITMAP indexes come into play?

Does having one index w/ 3 parameters being better than 3 index w/ 3
different parameters be better for BITMAP index seeks?



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