Joining onto a subquery in SQLAlchemy

python sql sqlalchemy greatest-n-per-group

Apparently you need to add an and_() around multiple join conditions.

join(    sq,    and_(p1.Name==sq.c.Name,    p1.Arch==sq.c.Arch,    d1.repo==sq.c.repo,    p1.Date==sq.c.Date)).\

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