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https://issues.apache.org/jira/browse/ARROW-998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16004779#comment-16004779
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Brian Hulette commented on ARROW-998:
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Ah, yeah you're right. I think I got tripped up because I expected the Schema
Message to be at byte 8, but it looks like the C++ lib is placing it at 64
(js/spec/simple.arrow and struct-example.arrow). It looks like the Java lib is
placing the schema header immediately after the magic bytes without any padding
though (js/spec/dictionary.arrow).
> [Doc] File format documents incorrect schema location
> -----------------------------------------------------
>
> Key: ARROW-998
> URL: https://issues.apache.org/jira/browse/ARROW-998
> Project: Apache Arrow
> Issue Type: Bug
> Reporter: Brian Hulette
>
> The documentation for the file format makes it look like the schema is at the
> beginning of the file, since it "contains" the streaming format
> (https://github.com/apache/arrow/blob/master/format/IPC.md#file-format), but
> in reality the schema is in the footer
> (https://github.com/apache/arrow/blob/master/format/File.fbs#L29)
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