[jira] [Created] (ARROW-9781) [C++] Fix valgrind uninitialized value warnings

[Krisztian Szucs (Jira)]

Krisztian Szucs created ARROW-9781:
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             Summary: [C++] Fix valgrind uninitialized value warnings
                 Key: ARROW-9781
                 URL: https://issues.apache.org/jira/browse/ARROW-9781
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Krisztian Szucs
             Fix For: 2.0.0


The nightly valgrind build has failures due to unitialized values: 
https://github.com/ursa-labs/crossbow/runs/996955686



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