thank you, that was exactly what i was looking for.
On 23 Vas, 01:15, Michael Bayer <[EMAIL PROTECTED]> wrote:
> On Feb 22, 2008, at 6:10 PM, naktinis wrote:
>
>
>
> > Hello,
> > I was wondering if it's possible to do several unions using
> > SQLAlchemy. I had no problems writing a sqlalchemy query with one
> > union, but after aplying the second one it returned 'CompoundSelect'
> > object has no attribute 'union', which probably means the returned
> > object with union applied cannot have another union applied on top of
> > it. However, MySQL syntax supports several unions (it looks like
> > "SELECT smth1 WHERE condition1 UNION SELECT smth2 WHERE condition2
> > UNION SELECT smth3 WHERE condition3 ... ") So, is there a way to
> > something similar using SQLAlchemy?
>
> yeah i actually updated the docs on this one to favor using the
> standalone union() construct which allows better control over nesting
> and such (particularly in combination with other compound operators
> like intersect, except_ ):
>
> union(select(), select(), select(), ....)
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