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  1. IMPALA
  2. IMPALA-11099

Use orc::Reader::getMemoryUseByTypeId to compute ideal memory reservation

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    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
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    • Backend
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    Description

      The design of IMPALA-6636 currently follow existing algorithm in hdfs-parquet-scanner for computing ideal memory reservation for each column.

      We can refine this computation for ORC by checking orc::Reader::getMemoryUseByTypeId once the file reader has read the metadata in footer.

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            Unassigned Unassigned
            rizaon Riza Suminto
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              Created:
              Updated: