I couldn't find docs on this behavior, so wanted to ask before filing a 
ticket with a test-case.  If this isn't the expected behavior, I'll 
generate a SSCCE.  I think it might be expected though.

I have a form of a query that uses an ORM object joined against a subquery

It works when the subquery is the first element

query = dbSession.query(sqlalchemy.func.max(subquery.c.event_timestamp).
label('event_timestamp'),
                        model.Foo.id.label('foo_id'),
                        )...

but it does not work when the subquery is the second element

query = dbSession.query(model.Foo.id.label('foo_id'),
                        sqlalchemy.func.max(subquery.c.event_timestamp).
label('event_timestamp'),
                        )...

-- 
SQLAlchemy - 
The Python SQL Toolkit and Object Relational Mapper

http://www.sqlalchemy.org/

To post example code, please provide an MCVE: Minimal, Complete, and Verifiable 
Example.  See  http://stackoverflow.com/help/mcve for a full description.
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