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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2016/04/03 15:32:25 UTC

[jira] [Commented] (ARROW-94) Expand list example to clarify null vs empty list

    [ https://issues.apache.org/jira/browse/ARROW-94?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15223286#comment-15223286 ] 

Wes McKinney commented on ARROW-94:
-----------------------------------

The only difference is the null bit -- you must propagate the current offset even with a stretch of nulls so that random access is preserved . Best to clarify in the spec as you aren't the first person to bring this up. 

> Expand list example to clarify null vs empty list
> -------------------------------------------------
>
>                 Key: ARROW-94
>                 URL: https://issues.apache.org/jira/browse/ARROW-94
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Format
>            Reporter: Micah Kornfield
>
> The current spec seems to make the possibility of an empty list impossible (or at least conflates it with null).  



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