Matthias Vallentin created ARROW-17839:
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Summary: Cannot create RecordBatch with nested struct containing
extension type
Key: ARROW-17839
URL: https://issues.apache.org/jira/browse/ARROW-17839
Project: Apache Arrow
Issue Type: Bug
Components: Python
Affects Versions: 9.0.0
Environment: macOS 12.5.1 on an Apple M1 Ultra.
Reporter: Matthias Vallentin
Attachments: example.py
I'm running into the following issue:
{code:java}
pyarrow.lib.ArrowNotImplementedError: Unsupported cast to
extension<vast.address<AddressType>> from fixed_size_binary[16]{code}
Use case: I want to create a record batch that contains this type:
{code:java}
pa.struct([("address", AddressType()), ("length", pa.uint8())]){code}
Here, {{AddressType}} is an extension type that models an IP address
({{{}pa.binary(16){}}}).
Please find attached a self-contained example that illustrates the issue.
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