Hi everyone! I'm trying to concoct a somewhat complicated query via Query API.. The situation is the following:
- A many-to-one relation between classes C and D - Class C has an attribute "value" My objective is to retrieve the ids of a left outer join between D and C (so, all the Ds and eventually the related Cs) where C.value has the maximum value, given the same D. So for example, given a table D made of [id, otherfield] (1, "A") (2, "B") (3, "C") and a table C made of [id, d_id, value] (1, 1, 0) (2, 1, 1) <- max value for d_id 1 (3, 2, 3) <- max value for d_id 2 (4, 2, 2) I'd like my query to return [d.id, c.id] (1, 2) (2, 3) (3, None) Is this possible with a single query? Many thanks for your time! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
