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https://issues.apache.org/jira/browse/ARROW-15778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17497456#comment-17497456
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Antoine Pitrou commented on ARROW-15778:
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The offending code seems to be there:
https://github.com/apache/arrow/blob/master/java/vector/src/main/java/org/apache/arrow/vector/types/pojo/Schema.java#L202-L213
This seems reasonably easy to fix (perhaps a one-line fix, though a test should
ideally be added as well).
[~emkornfield] [~kiszk]
> [Java] Endianness field not emitted in IPC stream
> -------------------------------------------------
>
> Key: ARROW-15778
> URL: https://issues.apache.org/jira/browse/ARROW-15778
> Project: Apache Arrow
> Issue Type: Bug
> Components: Java
> Reporter: Antoine Pitrou
> Priority: Major
> Fix For: 8.0.0
>
>
> It seems the Java IPC writer implementation does not emit the Endianness
> information at all (making it Little by default). This complicates
> interoperability with the C++ IPC reader, which does read this information
> and acts on it to decide whether it needs to byteswap the incoming data.
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