I have a calculated column that takes the first non-NULL value among
three dates. It should remain a datetime object but instead it's
being converted to a string. Is it possible to tell SQLAlchemy to
treat this value like a DateTime column?
# Table t_incident defined with
sa.Column("last_entry_date", sa.types.DateTime, nullable=True),
sa.Column("create_date", sa.types.DateTime, nullable=False),
# Standalone column definition
c_activity = sa.func.coalesce(
t_incident.c.last_entry_date,
t_incident.c.create_date,
).label("activity")
# Mapping
orm.mapper(Incident, t_incident, properties={
"activity": orm.column_property(c_activity)
})
--
Mike Orr <[EMAIL PROTECTED]>
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