hi,
i have a method that returns list of (material, thickness) groups which
looks like:
C = [order_element_items.c.material_uuid,
materials.c.name,
order_element_items.c.thickness]
S = select(
C, order_element_items.c.material_uuid==materials.c.uuid,
from_obj=[order_element_items, materials],
order_by=[materials.c.name, order_element_items.c.thickness],
group_by=C,
)
res = [(session.query(Material).filter_by(uuid=a).one(), c) for
a,b,c in session.bind.execute(S)]
but it does too many selects and i wonder is it possible somehow to
achieve the same result with one select?
thanks in advance
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