[jira] [Created] (ARROW-4218) [Rust][Parquet]Implement ColumnReader

[Renjie Liu (JIRA)]

Renjie Liu created ARROW-4218:
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             Summary: [Rust][Parquet]Implement ColumnReader
                 Key: ARROW-4218
                 URL: https://issues.apache.org/jira/browse/ARROW-4218
             Project: Apache Arrow
          Issue Type: Sub-task
          Components: Rust
            Reporter: Renjie Liu
            Assignee: Renjie Liu


ColumnReader reads columns in parquet file into arrow array, this's this the 
first step for reading parquet into arrow.



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