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Posted to dev@hive.apache.org by "Xuefu Zhang (JIRA)" <ji...@apache.org> on 2014/11/08 15:34:34 UTC

[jira] [Commented] (HIVE-8793) Make sure multi-insert works with map join [Spark Branch]

    [ https://issues.apache.org/jira/browse/HIVE-8793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14203451#comment-14203451 ] 

Xuefu Zhang commented on HIVE-8793:
-----------------------------------

We need to treat this as a general case. Handling this seems straightfoward. We just need to make the processing (splitSparkWork) in HIVE-8118 happen before MapJoinResolver.

> Make sure multi-insert works with map join [Spark Branch]
> ---------------------------------------------------------
>
>                 Key: HIVE-8793
>                 URL: https://issues.apache.org/jira/browse/HIVE-8793
>             Project: Hive
>          Issue Type: Task
>          Components: Spark
>    Affects Versions: spark-branch
>            Reporter: Chao
>
> Currently, HIVE-8622 is implemented based on an assumption, that for a map join query, a BaseWork would not have multiple children. By testing through subquery_multiinsert.q did reveal that's the case. But, we need to investigate on this, and make sure this won't happen in general.



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