我已在中插入覆盖查询 HIVE 1.2.1 version . 我想在配置单元中使用更新而不是插入覆盖。
有人能在hive update中给出建议或示例吗？下面是我使用的插入覆盖查询示例。

Insert overwrite table temporary_table 
    select distinct
    stg.col1,
    stg.col2,
    stg.col3,
    case when tgt.cr_ts is Null then from_unixtime(unix_timestamp()) else             cast(tgt.cr_ts as string)  end as cr_ts ,
    case when ( stg.col1=tgt.col1    and 
            stg.col2=tgt.col2  and 
            stg.col3= tgt.col3 )        
      then cast(tgt.last_updt_ts as string) else cast         (from_unixtime(unix_timestamp()) as string )end as last_updt_ts
    from  stage_table stg
    left outer join target_table tgt
    On ( stg.col1= tgt.col1);