Hi Michael,
Thanks for your time.
I have figured out the problem. My error is not related to the data type,
as you pointed out. It is related to the definition of the TABLE column
repeatedly and inconsistently (meaning: initially I define the column as
Integer in the database, then I changed
I create Serializer class and use it for all my models with: Base =
declarative_base(cls=Serializer)
But I have one problem! I have Organization model and Service model that has
organization = relationship('Organization', backref='services') relationship
and I get RuntimeError: maximum
