def _highest_binary_version(self, session, binary_name, suite, architecture):
db_binary = session.query(DBBinary).filter_by(package=binary_name) \
.filter(DBBinary.suites.contains(suite)) \
+ .join(DBBinary.architecture) \
.filter(Architecture.arch_string.in_(['all', architecture])) \
.order_by(DBBinary.version.desc()).first()
if db_binary is None: