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create index on function - why? - Mailing list pgsql-sql

From	Wei Weng
Subject	create index on function - why?
Date	February 15, 2002 11:23:14
Msg-id	3C6D3684.9040101@kencast.com Whole thread Raw
Responses	Re: create index on function - why? Re: create index on function - why? Re: create index on function - why? Re: create index on function - why?
List	pgsql-sql

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I can understand the rationale behind creating index on tables, it 
speeds up the searching.

But what is the rationale behind creating index on a function? how does 
it help with the database performance?

Thank you.

-- 
Wei Weng
Network Software Engineer
KenCast Inc.

pgsql-sql by date:

From: Tom Lane
Date: 15 February 2002, 11:02:58
Subject: Re: creating an index on a function

From: "Nick Fankhauser"
Date: 15 February 2002, 11:33:53
Subject: Re: creating an index on a function

create index on function - why? - Mailing list pgsql-sql

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