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Posted to dev@hive.apache.org by "Seonggon Namgung (Jira)" <ji...@apache.org> on 2023/01/25 10:12:00 UTC

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

Seonggon Namgung created HIVE-26986:
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             Summary: 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: Bug
            Reporter: Seonggon Namgung
            Assignee: Seonggon Namgung


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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