You were talking about multiple fields in the primary key, not multiple
primary keys.
On 06/29/2010 03:51 PM, Johan De Meersman wrote:
Correct, but you still can't have more than one primary key. Kind of
defeats the idea of it being primary, really.
On Tue, Jun 29, 2010 at 3:36 PM, petya <pe...@petya.org.hu
<mailto:pe...@petya.org.hu>> wrote:
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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