Thanks! It seems so much more intuitive after seeing an example.
On Friday, July 8, 2016 at 11:51:49 AM UTC-4, Mike Bayer wrote:
>
>
>
> the basic idea (assuming ORM style) would be like:
>
> e = aliased(Engagement)
> ee = aliased(Engagement)
>
> e1 = exists().where(and_(
>ee.id ==
the basic idea (assuming ORM style) would be like:
e = aliased(Engagement)
ee = aliased(Engagement)
e1 = exists().where(and_(
ee.id == 156,
ee.target_id == e.target_id,
ee.candidate_id == e.candidate_id
))
e2 = exists().where(and_(
Message.id == e.id,
e1
))
q =
Hi, I'm wondering what the correct syntax is for a nested correlated
exists subquery?
I have Message and Engagement declarative tables and here is the query i'm
trying to replicate:
select *
from message m
where exists (
select 1 from engagement e
where m.engagement_id = e.id
and exists
