Scala apachespark将多行连接到一行中的列表中

我需要从源表中创建一个表（配置单元表/spark数据框），该表将多行用户的数据存储到单行列表中

User table:
Schema:  userid: string | transactiondate:string | charges: string |events:array<struct<name:string,value:string>> 
----|------------|-------| ---------------------------------------
123 | 2017-09-01 | 20.00 | [{"name":"chargeperiod","value":"this"}]
123 | 2017-09-01 | 30.00 | [{"name":"chargeperiod","value":"last"}]
123 | 2017-09-01 | 20.00 | [{"name":"chargeperiod","value":"recent"}]
123 | 2017-09-01 | 30.00 | [{"name":"chargeperiod","value":"0"}]
456 | 2017-09-01 | 20.00 | [{"name":"chargeperiod","value":"this"}]
456 | 2017-09-01 | 30.00 | [{"name":"chargeperiod","value":"last"}]
456 | 2017-09-01 | 20.00 | [{"name":"chargeperiod","value":"recent"}]
456 | 2017-09-01 | 30.00 | [{"name":"chargeperiod","value":"0"}]

Spark版本：1.6.2， （“1”、“2017-02-01”、“30.00”、“abc2”）， （“2”、“2017-02-01”、“20.00”、“abc”）， （“2”、“2017-02-01”、“30.00”、“abc”）） .toDF（“id”、“日期”、“金额”、“数组”） df.withColumn（“新的”，concat_ws（“，”，$”日期“，$”金额“，$”数组”）） .选择（“id”、“新建”） .groupBy（“id”） .agg（concat_ws（“，”，collect_list（“新”））

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您使用哪种语言？Scala？@moe这不是这个问题的解决方案，谢谢@hd16。concat_ws正在为数组[String]工作，但不为数组工作

userid:String | concatenatedlist :List[Row]
-------|-----------------
123    | [[2017-09-01,20.00,[{"name":"chargeperiod","value":"this"}]],[2017-09-01,30.00,[{"name":"chargeperiod","value":"last"}]],[2017-09-01,20.00,[{"name":"chargeperiod","value":"recent"}]], [2017-09-01,30.00, [{"name":"chargeperiod","value":"0"}]]]
456    | [[2017-09-01,20.00,[{"name":"chargeperiod","value":"this"}]],[2017-09-01,30.00,[{"name":"chargeperiod","value":"last"}]],[2017-09-01,20.00,[{"name":"chargeperiod","value":"recent"}]], [2017-09-01,30.00, [{"name":"chargeperiod","value":"0"}]]]