HIVE: lateral view explode & json_turpe 实现 json数组行转列&字段拆分
问题描述有时候因为业务的需要,有些字段不但是json格式,并且还是个json数组,比如下表pay_infos:pay_idinfos1111[{"uid":123,"terminalFrom":0,"couponBatchId":1410115799,"cost":5},{"uid":123,"terminalFrom":0,"couponBatchId":1410116199,,"cost":7