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using index on comparison with bit-operation? - Mailing list pgsql-hackers

From	[email protected] (Michael Groth)
Subject	using index on comparison with bit-operation?
Date	April 8, 2004 17:10:28
Msg-id	[email protected] Whole thread Raw
Responses	Re: using index on comparison with bit-operation? Re: using index on comparison with bit-operation?
List	pgsql-hackers

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hi,

is it possible to use an index on the expression '(table_1.field &
table_2.field)::int > 0' ?

here's the whole query:

SELECT COUNT(*)
FROMusers AS users
JOINsearch_profile AS search_profile ON
(search_profile.bin_matching_field_0 &
users.bin_matching_field_0)::int > 0
WHEREusers.id = 190
best regards

michael

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using index on comparison with bit-operation? - Mailing list pgsql-hackers

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