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Posted to issues@arrow.apache.org by "stephane campinas (Jira)" <ji...@apache.org> on 2020/02/11 09:09:00 UTC

[jira] [Created] (ARROW-7831) unnecessary buffer allocation when calling splitAndTransferTo on variable width vectors

stephane campinas created ARROW-7831:
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             Summary: unnecessary buffer allocation when calling splitAndTransferTo on variable width vectors
                 Key: ARROW-7831
                 URL: https://issues.apache.org/jira/browse/ARROW-7831
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Java
            Reporter: stephane campinas


In case the start of the slice is zero, a new offset buffer is unnecessarily allocated:

https://github.com/apache/arrow/blob/master/java/vector/src/main/java/org/apache/arrow/vector/BaseVariableWidthVector.java#L743

Since the starting offset is zero, the offset pointers don't have to be updated.



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