What's the best way to query, with the ORM, based on a list of multiple parameters without looping over each parameter tuple?
I have a list of parameters say: Col-1, Col-2 a, b c, d where the combination of the parameters in one row defines a unique table entry. Such that I would normally do object = session.query(table).filter(table.Col-1 == a, table.Col-2 == b).one() , and object = session.query(table).filter(table.Col-1 == c, table.Col-2 == d).one() to retrieve the two table objects Can I run a query that would grab the list of objects all at once, in one query, without having to loop over each row, doing each query, and combining the objects into a list? Something akin to the table.Col-1..in_([list of values) but with a combinatorial component to it. I know I can do something like session.query(table).filter(table.Col-1.in_([a,c]).all() to grab all the objects that have column 1 values of a, or c, but I need to constrain those to a+b, and c+d Does this make sense? Cheers, Brian -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
