Hello,
Shouldn't SQLAlchemy emit (at least) a warning when a window function is
mapped with an orm.column_property(), marked deferred=True, and accessed
without query.options(orm.undefer()) context (.. or maybe it's the role
of the dev to call it in a non-deferred context?) ?
For example:
'row_number' : orm.column_property(
sql.func.row_number().\
over(partition_by=table['content'].c.container_id,
order_by=table['content'].c.weight.desc()),
deferred = True
)
will always return 1 in a deferred context ..
Julien
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