Sqlalchemy - Using 'aliased' In Query With Custom Primaryjoin Relationship

I'm using SQLAlchemy (0.9.4) in my Flask application. There are two tables with soft delete support in application. class A(SoftDeleteMixin, db.Model): id = db.Column(db.BigInt

Solution 1:

OK, I figured it out.

getattr(second.table.c, 'soft_deleted') must be also with remote() annotation.

In other words primaryjoin of relationship in B.parent should look like:

(remote(B.id) == B.parent_id) & remote(B.soft_deleted).is_(False)