def as_sql(self, qn, connection):
        field = self.lhs.output_field
        if isinstance(field, models.FloatField):
            sql = '%s::numeric <@ %s::{}'.format(self.type_mapping[field.db_type(connection)])
        else:
            sql = '%s <@ %s::{}'.format(self.type_mapping[field.db_type(connection)])
        lhs, lhs_params = self.process_lhs(qn, connection)
        rhs, rhs_params = self.process_rhs(qn, connection)
        params = lhs_params + rhs_params
        return (lhs, rhs) % sql, params
dataset/ETHPy150Open django/django/django/contrib/postgres/fields/ranges.py/RangeContainedBy.as_sql/swapped operands of `%`