sqltypes.py 文件源码

def _setup_getitem(self, default_comparator, index):
            if not isinstance(index, util.string_types) and \
                    isinstance(index, collections.Sequence):
                index = default_comparator._check_literal(
                    self.expr, operators.json_path_getitem_op,
                    index, bindparam_type=JSON.JSONPathType
                )

                operator = operators.json_path_getitem_op
            else:
                index = default_comparator._check_literal(
                    self.expr, operators.json_getitem_op,
                    index, bindparam_type=JSON.JSONIndexType
                )
                operator = operators.json_getitem_op

            return operator, index, self.type