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  1. IMPALA
  2. IMPALA-7889

Write new logical types in Parquet

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Implemented
    • Affects Version/s: None
    • Fix Version/s: Impala 3.2.0
    • Component/s: Backend
    • Labels:
    • Epic Color:
      ghx-label-8

      Description

      Parquet added LogicalTypeAnnotation as a new way to express metadata about columns. For types that already exist, the old way (ConvertedType) should be also written to remain compatible with older readers, but new types (like int64 nano) are only added as LogicalTypeAnnotation.

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              • Assignee:
                csringhofer Csaba Ringhofer
                Reporter:
                csringhofer Csaba Ringhofer
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                • Created:
                  Updated:
                  Resolved: