[jira] [Resolved] (ARROW-13645) [Java] Allow NullVectors to have distinct field names

["Liya Fan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-13645?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Liya Fan resolved ARROW-13645.
------------------------------
    Resolution: Fixed

Issue resolved by pull request 10949
[https://github.com/apache/arrow/pull/10949]

> [Java] Allow NullVectors to have distinct field names
> -----------------------------------------------------
>
>                 Key: ARROW-13645
>                 URL: https://issues.apache.org/jira/browse/ARROW-13645
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Java
>            Reporter: Liya Fan
>            Assignee: Liya Fan
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 6.0.0
>
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> As discussed in the ML (https://lists.apache.org/thread.html/r19aad8a34f63334d3fcd627106f69be13f689740b83930a4eecc17b3%40%3Cdev.arrow.apache.org%3E), the current implementation use hard-coded field names. This may cause some problems, for example, when reconstruct a usable schema from a list of FieldVectors.
> So we resolve this problem by allowing NullVectors to have distinct field names. 
> This also makes the NullVector consistent with other types of vectors.



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