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  1. Apache Arrow
  2. ARROW-5931

[C++] Extend extension types facility to provide for serialization and deserialization in IPC roundtrips

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: 1.0.0
    • Component/s: C++
    • Labels:
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      Description

      A use case here is when an array needs to reference some external data. For example, suppose that we wanted to implement an array that references a sequence of Python objects as PyObject*. Obviously, a PyObject* must be managed by the Python interpreter.

      For a vector of some T* to be sent through the IPC machinery, it must be embedded in some Arrow type on the wire. For example, the memory resident version of PyObject* might be 8-bytes per value (1 pointer per value) while being serialized to the binary IPC protocol, such PyObject* values must be serialized into an Arrow Binary type.

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              • Assignee:
                Unassigned
                Reporter:
                wesm Wes McKinney
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                • Created:
                  Updated: