On Tue, Nov 22, 2011 at 1:39 AM, dmitry b <[email protected]> wrote:
> Hi Russ,
>
> Thanks for a quick response.
>
> I don't think Django needs to make the decision of whether or not to
> do a join.  That can be done by the underlying database as long as
> Django generates a query that the database can understand and optimize
> properly.

This assumes that databases are equally good at performing
optimizations of this kind. It's true that PostgreSQL does, and I
believe that Oracle does as well; however, MySQL and SQLite are not
equally blessed (to the best of my knowledge).

Yours,
Russ Magee %-)

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