[jira] [Assigned] (ARROW-15414) RangeEqualsVisitor does not work for BitVector

["Frank Wong (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-15414?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Frank Wong reassigned ARROW-15414:
----------------------------------

    Assignee: Frank Wong

> RangeEqualsVisitor does not work for BitVector
> ----------------------------------------------
>
>                 Key: ARROW-15414
>                 URL: https://issues.apache.org/jira/browse/ARROW-15414
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Java
>    Affects Versions: 6.0.1
>            Reporter: Frank Wong
>            Assignee: Frank Wong
>            Priority: Critical
>              Labels: pull-request-available
>             Fix For: 8.0.0
>
>   Original Estimate: 48h
>          Time Spent: 40m
>  Remaining Estimate: 47h 20m
>
> Looks like the RangeEqualsVisitor's logic to BaseFixedWidthVectors doesn't work for BitVector because the typeWidth of BitVector is 0.
> Here is the example.
> {code:java}
> try (final BitVector vector1 = new BitVector("bit", allocator);
>     final BitVector vector2 = new BitVector("bit", allocator)) {
>   setVector(vector1, 0, 1, 0);
>   setVector(vector2, 1, 1, 0);
>   VectorEqualsVisitor visitor = new VectorEqualsVisitor();
>   // Fail here
>   assertFalse(visitor.vectorEquals(vector1, vector2));
>   vector1.set(0, 1);
>   assertTrue(visitor.vectorEquals(vector1, vector2));
> } {code}



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