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Posted to jira@arrow.apache.org by "Matthias Vallentin (Jira)" <ji...@apache.org> on 2022/10/01 05:12:00 UTC
[jira] [Comment Edited] (ARROW-17839) [Python] Cannot create RecordBatch with nested struct containing extension type
[ https://issues.apache.org/jira/browse/ARROW-17839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17611823#comment-17611823 ]
Matthias Vallentin edited comment on ARROW-17839 at 10/1/22 5:11 AM:
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Thanks for the guidance, Joris!
Regarding the dictionary, nowhere in the code I use {{{}int8{}}}. Where do I implicitly "commit" to \{{int8}} without knowing it?
was (Author: mavam):
Thanks for the guidance, Joris!
Regarding the dictionary, nowhere in the code I use {{{}int8{}}}. Where do I implicitly "commit" to {{int8 }}without knowing it?
> [Python] 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
> Priority: Blocker
> Attachments: enum.py, 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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