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From "Julien Le Dem (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ARROW-380) [Java] optimize null count when serializing vectors.
Date Wed, 16 Nov 2016 21:48:58 GMT
Julien Le Dem created ARROW-380:
-----------------------------------

             Summary: [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


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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