Ok, so the answer is to use 'eager_defaults': True :
class CommonBase(object):
"""Base model for Apilib db-mapped and virtual models.
"""
__mapper_args__ = {
# immediately fetch the value of server-generated default values
after an INSERT or UPDATE
'eager_defaults': True,
}
Looks like it works, but in other models without columns with
'server_default' I am getting:
File "../python2.7/site-packages/sqlalchemy/orm/query.py", line 2685, in
_compile_context
"No column-based properties specified for "
InvalidRequestError: No column-based properties specified for refresh
operation. Use session.expire() to reload collections and related items.
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