请问如何在MariaDB表上使用DataFrame(rationalize)动态嵌套和展平对象?
dfc = Relationalize.apply(frame = source,transformation_ctx = "dfc")
datasink4 = glueContext.write_dynamic_frame.from_jdbc_conf(frame = dfc, catalog_connection = "kiwipaydev", connection_options = {"dbtable": "tb1", "database": "kiwipaydev"}, transformation_ctx = "datasink4")