是否有一个Scala集合来维护insert的顺序?

List:hdtList

forecast_id bigint,period_year bigint,period_num bigint,period_name string,drm_org string,ledger_id bigint,currency_code string,source_system_name string,source_record_type string,gl_source_name string,gl_source_system_name string,year string

我有一个 List: partition_columns source_system_name, period_year

使用 列表:分区列 ,我正在尝试匹配它们并在中移动相应的列 List: hdtList 结束语如下:

  val (pc, notPc) = hdtList.partition(c => partition_columns.contains(c.takeWhile(x => x != ' ')))

但当我把它们打印成: println(notPc.mkString(",") + "," + pc.mkString(","))

 forecast_id bigint,period_num bigint,period_name string,drm_org string,ledger_id bigint,currency_code string,source_record_type string,gl_source_name string,gl_source_system_name string,year string,period string,period_year bigint,source_system_name string

period_year 先到先得 source_system_name 最后一个。是否有任何我可以使数据如下,以便列的顺序在 保持。

 forecast_id bigint,period_num bigint,period_name string,drm_org string,ledger_id bigint,currency_code string,source_record_type string,gl_source_name string,gl_source_system_name string,year string,period string,source_system_name string,period_year bigint