Re: How to modify ENUM datatypes?

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От
Joshua D. Drake
Тема
Re: How to modify ENUM datatypes?
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Msg-id
20080422142822.4b247c78@commandprompt.com
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Re: How to modify ENUM datatypes? Chris Browne <cbbrowne@acm.org>
Re: How to modify ENUM datatypes? "Scott Marlowe" <scott.marlowe@gmail.com>
Re: How to modify ENUM datatypes? "David Wilson" <david.t.wilson@gmail.com>
Re: How to modify ENUM datatypes? Tom Lane <tgl@sss.pgh.pa.us>
Re: How to modify ENUM datatypes? "Rob Wultsch" <wultsch@gmail.com>
Re: How to modify ENUM datatypes? Andrew Sullivan <ajs@commandprompt.com>
Re: How to modify ENUM datatypes? Andreas 'ads' Scherbaum <adsmail@wars-nicht.de>
Re: How to modify ENUM datatypes? Martijn van Oosterhout <kleptog@svana.org>
Re: How to modify ENUM datatypes? Tino Wildenhain <tino@wildenhain.de>
Re: How to modify ENUM datatypes? Andrew Sullivan <ajs@commandprompt.com>
On Tue, 22 Apr 2008 15:45:39 -0500
"D. Dante Lorenso"  wrote:


> I was really hoping that it would be more efficient to not have to do 
> all the foreign keys and joins for tables that may have 4-5 enum
> types.
> 
> Just being able to:
> 
>    SELECT *
>    FROM tablename
> 
> would be nice if my columns contained enums instead of doing:
> 
>    SELECT *
>    FROM tablename, lookuptable
>    WHERE tablename.some_id = lookuptable.some_id
> 
> Isn't the join more expensive?

You were using natural keys, the join would not be required.

Joshua D. Drake

> 
> -- Dante
> 


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