Steve Zatz wrote:
> And what is the approach to the simpler question of determining what joins
> are in a query.
>
> For example,
>
> query = session.query(Task).join(Context)...
>
> If you're just passed the query, what's the best way to determine that it
> contains a join (for example, so you don't perform the same join again)?
well I showed the "visitor" example towards the goal of illustrating a
generalized solution to "finding" things. just change "table" to "join".
myjoins = set()
visitors.traverse(mystmt, {'join':myjoins.add})
>
> Steve
>
> >
>
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