bigquery json处理函数json_extract和json_extract_scalar的区别
json_extract(json_expression,json_path)将返回所有JSON值json_extract_scalar(json_expression,json_path)将只返回标量值(字符串、数字、布尔值)我们用案例来看下两者之间的区别解析数据格式:{"total":"5","success":"1","translate_status":"0","success_pos_l