Multiple olcDbIndex for the same attribute

["PenguinWhispererThe ." <th3penguinwhisperer@gmail.com>]

Hello,

I'm wondering what happens when you add multiple indexes for the same attribute with the same keyword occuring in each of them but with a different set.

So for example:
olcDbIndex: objectClass pres,eq
olcDbIndex: objectClass eq

Is this the same as if you'd only have:
olcDbIndex: objectClass pres,eq
?

Or does it really make a difference?

I've checked http://www.openldap.org/doc/admin24/slapdconf2.html but I couldn't find an answer to this.

Thanks in advance!