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  1. Apache Arrow
  2. ARROW-840

[Python] Provide Python API for creating user-defined data types that can survive Arrow IPC

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      Description

      The user will provide:

      • Data type subclass that can indicate the physical storage type
      • "get state" and "set state" functions for serializing custom metadata to bytes
      • An optional function for "boxing" scalar values from the physical array storage

      Internally, this will build on an analogous C++ API for defining user data types

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              • Assignee:
                apitrou Antoine Pitrou
                Reporter:
                wesm Wes McKinney
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