Re: Two Primary Keys

[petya]

If you use innodb, primary key lookups are far faster than secondary 
indexes.

Peter
On 06/29/2010 03:34 PM, João Cândido de Souza Neto wrote:
I think the real question is: What´s the purpose of any other field in my
primary key if the first one is an auto_increment and will never repeat?


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