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https://issues.apache.org/jira/browse/ARROW-4571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17661594#comment-17661594
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Rok Mihevc commented on ARROW-4571:
-----------------------------------
This issue has been migrated to [issue
#15975|https://github.com/apache/arrow/issues/15975] on GitHub. Please see the
[migration documentation|https://github.com/apache/arrow/issues/14542] for
further details.
> [Format] Tensor.fbs file has multiple root_type declarations
> ------------------------------------------------------------
>
> Key: ARROW-4571
> URL: https://issues.apache.org/jira/browse/ARROW-4571
> Project: Apache Arrow
> Issue Type: Bug
> Components: Format
> Reporter: Eric Erhardt
> Assignee: Kenta Murata
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.13.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Looking at [the flatbuffers
> doc|https://google.github.io/flatbuffers/flatbuffers_guide_tutorial.html], it
> appears there should only be one `root_type` declaration in an fbs file:
> {code:java}
> The last part of the schema is the root_type. The root type declares what
> will be the root table for the serialized data. In our case, the root type is
> our Monster table.{code}
> However, the Tensor.fbs file has multiple `root_type` declarations:
> [https://github.com/apache/arrow/blob/69d595ae4c61902b3f2778e536fca6675350c88c/format/Tensor.fbs#L53]
> [https://github.com/apache/arrow/blob/69d595ae4c61902b3f2778e536fca6675350c88c/format/Tensor.fbs#L146]
>
> See the discussion here:
> https://github.com/apache/arrow/pull/2546#discussion_r256549256
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