[jira] [Commented] (HIVE-26986) A DAG created by OperatorGraph is not equal to the Tez DAG.

["Denys Kuzmenko (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-26986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17794791#comment-17794791 ] 

Denys Kuzmenko commented on HIVE-26986:
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[~seonggon], could you please share how one could create OperatorGraph for the query? under debug OperatorGraph.toDot()?

> A DAG created by OperatorGraph is not equal to the Tez DAG.
> -----------------------------------------------------------
>
>                 Key: HIVE-26986
>                 URL: https://issues.apache.org/jira/browse/HIVE-26986
>             Project: Hive
>          Issue Type: Sub-task
>    Affects Versions: 4.0.0-alpha-2
>            Reporter: Seonggon Namgung
>            Assignee: Seonggon Namgung
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: Query71 OperatorGraph.png, Query71 TezDAG.png
>
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> A DAG created by OperatorGraph is not equal to the corresponding DAG that is submitted to Tez.
> Because of this problem, ParallelEdgeFixer reports a pair of normal edges to a parallel edge.
> We observe this problem by comparing OperatorGraph and Tez DAG when running TPC-DS query 71 on 1TB ORC format managed table.



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