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Posted to issues@arrow.apache.org by "Mohamed Zenadi (JIRA)" <ji...@apache.org> on 2016/12/17 20:34:58 UTC

[jira] [Commented] (ARROW-380) [Java] optimize null count when serializing vectors.

    [ https://issues.apache.org/jira/browse/ARROW-380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15757566#comment-15757566 ] 

Mohamed Zenadi commented on ARROW-380:
--------------------------------------

Could you check if it's mergeable?

> [Java] optimize null count when serializing vectors.
> ----------------------------------------------------
>
>                 Key: ARROW-380
>                 URL: https://issues.apache.org/jira/browse/ARROW-380
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Java - Vectors
>            Reporter: Julien Le Dem
>              Labels: newbie
>
> nulls are stored in bits. We should be able to use more efficient ways to count nulls:
> https://github.com/apache/arrow/blob/6996c17f70dc13659c37dfaa39bc28e7777ca6a6/java/vector/src/main/java/org/apache/arrow/vector/VectorUnloader.java#L68



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