Aliaksei Sandryhaila created PARQUET-568:
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Summary: Read only specified top-level columns
Key: PARQUET-568
URL: https://issues.apache.org/jira/browse/PARQUET-568
Project: Parquet
Issue Type: Improvement
Components: parquet-cpp
Reporter: Aliaksei Sandryhaila
Assignee: Aliaksei Sandryhaila
At the moment, `ParquetFileReader` instantiates Scanners for all columns and
reads contents of all columns. We should be able to specify a subset of
top-level columns to be read.
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