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  1. IMPALA
  2. IMPALA-5650

COUNT(*) optimization causes a crash when legacy aggregation is enabled

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: Impala 2.10.0
    • Fix Version/s: Impala 2.10.0
    • Component/s: Backend
    • Labels:
      None
    • Epic Color:
      ghx-label-8

      Description

      Steps to reproduce:

      1. Start Impala with the following flag: -enable_partitioned_aggregation=false
      2. Run the following query:
         select count(*) from tpch_parquet.lineitem 

      Impala hits a DCHECK:

      aggregation-node.cc:669] Check failed: false bad aggregate operator: 6
      

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              • Assignee:
                tarasbob Taras Bobrovytsky
                Reporter:
                tarasbob Taras Bobrovytsky
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                Dates

                • Created:
                  Updated:
                  Resolved: