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Re: queries with lots of UNIONed relations - Mailing list pgsql-performance

From Robert Haas
Subject Re: queries with lots of UNIONed relations
Date
Msg-id [email protected]
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In response to Re: queries with lots of UNIONed relations  (Jon Nelson <[email protected]>)
Responses Re: queries with lots of UNIONed relations
List pgsql-performance
On Thu, Jan 13, 2011 at 3:12 PM, Jon Nelson <[email protected]> wrote:
> I still think that having UNION do de-duplication of each contributory
> relation is a beneficial thing to consider -- especially if postgresql
> thinks the uniqueness is not very high.

This might be worth a TODO.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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