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https://issues.apache.org/jira/browse/ARROW-15753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17527975#comment-17527975
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Antoine Pitrou commented on ARROW-15753:
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It seems this is being done in ARROW-7272
> [Java] Dataset JNI bridge should use the C data interface
> ---------------------------------------------------------
>
> Key: ARROW-15753
> URL: https://issues.apache.org/jira/browse/ARROW-15753
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Java
> Reporter: Antoine Pitrou
> Priority: Major
>
> Right now the datasets JNI bridge uses some custom buffer passing which only
> seems to handle primitive arrays correctly (child array buffers and
> dictionaries are not considered):
> https://github.com/apache/arrow/blob/master/cpp/src/jni/dataset/jni_wrapper.cc#L498-L500
> Instead, it should use the C data interface, which is now implemented in Java.
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