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  1. Hive
  2. HIVE-12508

HiveAggregateJoinTransposeRule places a heavy load on the metadata system

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 2.0.0
    • Fix Version/s: 2.0.0
    • Component/s: CBO
    • Labels:
      None
    • Target Version/s:

      Description

      Finding out whether the input is already unique requires a call to areColumnsUnique that currently (until CALCITE-794 is fixed) places a heavy load on the metadata system. This can lead to long CBO planning.

      This is a temporary fix that avoid the call to the method till then.

        Attachments

        1. HIVE-12508.patch
          4 kB
          Jesus Camacho Rodriguez

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              • Assignee:
                jcamachorodriguez Jesus Camacho Rodriguez
                Reporter:
                jcamachorodriguez Jesus Camacho Rodriguez
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                • Created:
                  Updated:
                  Resolved: