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https://issues.apache.org/jira/browse/ARROW-6929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17017722#comment-17017722
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Micah Kornfield commented on ARROW-6929:
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I'm not sure the condition checked ( "if (array.length() > 0 && array.offset()
== 0 && array.value_offset(0) != 0)")
return Status::Invalid("The first offset isn't zero");
} at
[https://github.com/apache/arrow/blob/master/cpp/src/arrow/array/validate.cc#L249]
is a requirement for arrays ?
> [C++] ValidateArray is out of sync with the ListArray IPC specification
> -----------------------------------------------------------------------
>
> Key: ARROW-6929
> URL: https://issues.apache.org/jira/browse/ARROW-6929
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Micah Kornfield
> Priority: Major
> Fix For: 0.16.0
>
>
> * It appears to check that null values take zero space
> * It still checks for a begin offset of 0 if the array isn't sliced
> (technically this doesn't seem necessary and it could be non-zero even if the
> array wasn't sliced.)
> * I think it also fails if an array is sliced to truncate it since it should
> compare length to data_extent instead of last_offset.
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