From: Martin Gainty (mgaintyhotmail.com)
Date: Fri Aug 29 2008 - 10:32:40 CDT

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addresses the case for using ENUM over VARCHAR for low cardinality columns

For performance issues on which sort algorithm does a join select is addressed at
http://dev.mysql.com/doc/refman/5.0/en/index-merge-optimization.html

?
Martin
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> Date: Fri, 29 Aug 2008 15:30:16 +0200
> From: wharmsbfs.de
> To: perrinelem.com
> CC: mysqllists.mysql.com
> Subject: Re: performance key-value - int vs ascii ?
>
> thx,
> the results support my suspect
>
> re,
> wh
>
>
> Perrin Harkins schrieb:
> > On Fri, Aug 29, 2008 at 4:57 AM, walter harms <wharmsbfs.de> wrote:
> >> Since diskspace is plenty i thinking about to use the name directly. does
> >> anyone has any idea
> >> what is the performance penalty ?
> >
> > http://www.mysqlperformanceblog.com/2008/01/24/enum-fields-vs-varchar-vs-int-joined-table-what-is-faster/
> >
> > - Perrin
> >
> >
>
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