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  1. IMPALA
  2. IMPALA-11274

CNF Rewrite causes a regress in join node performance

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • Impala 4.0.0, Impala 4.1.0
    • Impala 4.2.0, Impala 4.1.1
    • Frontend
    • None
    • ghx-label-4

    Description

      It appears that cnf rewrite can generate more predicates and presumably cause the same query to execute slower.

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        is caused by

        Bug - A problem which impairs or prevents the functions of the product. IMPALA-9183 TPC-DS query 13 - customer_address predicates not propagated to scan

        • Major - Major loss of function.
        • Resolved
        is related to

        Bug - A problem which impairs or prevents the functions of the product. IMPALA-11770 Review Predicate arguments for impact of CNF rewrites

        • Major - Major loss of function.
        • Open

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          People

            MikaelSmith Michael Smith
            sql_forever Qifan Chen
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            Dates

              Created:
              Updated:
              Resolved:

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