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 ______________________________________________ Disclaimer and confidentiality note Everything in this e-mail and any attachments relates to the official business of Sender. This transmission is of a confidential nature and Sender does not endorse distribution to any party other than intended recipient. Sender does not necessarily endorse content contained within this transmission. > Date: Fri, 29 Aug 2008 15:30:16 +0200 > From: [EMAIL PROTECTED] > To: [EMAIL PROTECTED] > CC: mysql@lists.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 <[EMAIL PROTECTED]> 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 > > > > > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] > _________________________________________________________________ See what people are saying about Windows Live. Check out featured posts. http://www.windowslive.com/connect?ocid=TXT_TAGLM_WL_connect2_082008
