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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8793) Make sure multi-insert works with map join [Spark Branch]
Date Mon, 10 Nov 2014 14:14:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14204808#comment-14204808
] 

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

It's fine to make it a physical optimizer. For clone to work map, it seems we can make it
as a field of SparkWork.

> 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: Sub-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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