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[nycphp-talk] Table Indexes

Daniel Convissor danielc at analysisandsolutions.com
Sat Sep 27 20:32:14 EDT 2008


Hi John:

On Sun, Sep 07, 2008 at 02:31:48PM -0400, John Campbell wrote:
> 
> With MySQL the fastest is often:
> Primary(a,b)
> index(b)

I agree.


> And in sometimes you even want:
> Primary(a,b)
> index(a)
> index(b)

The second index of "a" would duplicate the index of "a" in the primary 
key.

--Dan

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