[
https://issues.apache.org/jira/browse/HIVE-16100?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-16100:
---------------------------
Attachment: HIVE-16100.3.patch
Add code in reduce de-dup to ensure SEL branches prevent removal of reducers.
> Dynamic Sorted Partition optimizer loses sibling operators
> ----------------------------------------------------------
>
> Key: HIVE-16100
> URL: https://issues.apache.org/jira/browse/HIVE-16100
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
> Affects Versions: 1.2.1, 2.2.0, 2.1.1
> Reporter: Gopal V
> Assignee: Gopal V
> Attachments: HIVE-16100.1.patch, HIVE-16100.2.patch,
> HIVE-16100.2.patch, HIVE-16100.3.patch
>
>
> https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/optimizer/SortedDynPartitionOptimizer.java#L173
> {code}
> // unlink connection between FS and its parent
> fsParent = fsOp.getParentOperators().get(0);
> fsParent.getChildOperators().clear();
> {code}
> The optimizer discards any cases where the fsParent has another SEL child
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
