On 2013-04-10, JORGE MALDONADO <jorgemal1960@gmail.com> wrote:
> Our application offers a catalog of artists where a user can select a range
> of birthdays and/or sex. For example, a user can get an artists catalog for
> those male artists who were born between May 1, 1970 and May 1, 1990
> ordered by birthday and, within each birthday date, ordered by name. I can
> think of defining one index for birthday, one index for name, and one index
> for sex. Also, I can think of defining a compound index for birthday +
> name. Also there could be a compound index for sex + name. Another option
> could be a compound index for birthday + sex + name. There are many
> possible combinations. What is a good index design approach?
the best approach depends on where you need the most improvement.
For your example query an undex on (sex,birthday,name) would be best.
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