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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2019/02/06 06:04:00 UTC

[jira] [Comment Edited] (ARROW-1636) Integration tests for null type

    [ https://issues.apache.org/jira/browse/ARROW-1636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16761514#comment-16761514 ] 

Wes McKinney edited comment on ARROW-1636 at 2/6/19 6:03 AM:
-------------------------------------------------------------

We observe (un-schema'd) data that is all nulls, so in such cases we refuse to guess about the type. It might be a good idea for Gandiva to support null at some point (which can cast to anything)


was (Author: wesmckinn):
We observe data that is all nulls, so in such cases we refuse to guess about the type. It might be a good idea for Gandiva to support null at some point (which can cast to anything)

> Integration tests for null type
> -------------------------------
>
>                 Key: ARROW-1636
>                 URL: https://issues.apache.org/jira/browse/ARROW-1636
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++, Java
>            Reporter: Wes McKinney
>            Assignee: Pindikura Ravindra
>            Priority: Major
>              Labels: columnar-format-1.0
>             Fix For: 0.14.0
>
>
> This was not implemented on the C++ side, and came up in ARROW-1584. Realistically arrays may be of null type, and we should be able to message these correctly



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