[
https://issues.apache.org/jira/browse/HIVE-7613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14085956#comment-14085956
]
Xuefu Zhang commented on HIVE-7613:
-----------------------------------
Thanks for logging this, [~chengxiang li]. This is a good area too look at.
Since it's optimization, it doesn't belong to either Milestone 1 or 2. Thus,
let's give a lower priority to this one, unless there are no tasks at a higher
priority.
> Research optimization of auto convert join to map join[Spark branch]
> --------------------------------------------------------------------
>
> Key: HIVE-7613
> URL: https://issues.apache.org/jira/browse/HIVE-7613
> Project: Hive
> Issue Type: Task
> Components: Spark
> Reporter: Chengxiang Li
>
> ConvertJoinMapJoin is an optimization the replaces a common join(aka shuffle
> join) with a map join(aka broadcast or fragment replicate join) when
> possible. we need to research how to make it workable with Hive on Spark.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
