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[jira] [Created] (ARROW-2483) [Rust] use bit-packing for boolean vectors


Chao Sun created ARROW-2483:
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             Summary: [Rust] use bit-packing for boolean vectors
                 Key: ARROW-2483
                 URL: https://issues.apache.org/jira/browse/ARROW-2483
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Rust
            Reporter: Chao Sun


Boolean vectors now use 1 byte for each value, which seems wasteful. We could use bit-packing to store the values, similar to the CPP implementation.



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