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Posted to dev@arrow.apache.org by "Deneche A. Hakim (JIRA)" <ji...@apache.org> on 2016/08/01 19:08:20 UTC

[jira] [Created] (ARROW-246) [Java] UnionVector doesn't call allocateNew() when creating it's vectorType

Deneche A. Hakim created ARROW-246:
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             Summary: [Java] UnionVector doesn't call allocateNew() when creating it's vectorType
                 Key: ARROW-246
                 URL: https://issues.apache.org/jira/browse/ARROW-246
             Project: Apache Arrow
          Issue Type: Bug
          Components: Java - Vectors
            Reporter: Deneche A. Hakim


UnionVector uses a UINT1Vector to store the types of every value in the vector., but it doesn't call allocateNew() on that vector. When we call setSafe() the 1st time (e.g. from PromotableVector.promoteToUnion()) it will re-allocate the vector but will fail to properly set it's content to 0. This can cause various failures when we try to access the value/type stored in the vector.



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