Ernesto Quiñones escribió:
> uds. creen que creando un indice sobre las columns que hacen group by mejore??
No.
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Alvaro Herrera http://www.amazon.com/gp/registry/3BP7BYG9PUGI8
Thou shalt study thy libraries and strive not to reinvent them without
cause, that thy code may be short and readable and thy days pleasant
and productive. (7th Commandment for C Programmers)