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  1. Hive
  2. HIVE-14826 Support vectorization for Parquet
  3. HIVE-18211

Support to read multiple level definition for Map type in Parquet file

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    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.0.0
    • Component/s: None
    • Labels:
      None

      Description

      For the current implementation with VectorizedParquetRecordReader, only following definition for map type is supported:

      repeated group map (MAP_KEY_VALUE) {
          required binary key (UTF8); optional binary value (UTF8);}
      }
      

      The implementation should support multiple level definition like:

      optional group m1 (MAP) {
          repeated group map (MAP_KEY_VALUE)
              {required binary key (UTF8); optional binary value (UTF8);}
      }
      

        Attachments

        1. HIVE-18211.002.patch
          6 kB
          Colin Ma
        2. HIVE-18211.001.patch
          6 kB
          Colin Ma

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              • Assignee:
                colinma Colin Ma
                Reporter:
                colinma Colin Ma
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                • Created:
                  Updated:
                  Resolved: