Julien Le Dem created PARQUET-102:
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Summary: no projection in thrift union types.
Key: PARQUET-102
URL: https://issues.apache.org/jira/browse/PARQUET-102
Project: Parquet
Issue Type: Bug
Components: parquet-mr
Reporter: Julien Le Dem
We should not allow projecting a subset of the fields in a Thrift union as this
will result in errors.
In a union there will be exactly one defined field.
Which means reading the data will fail if we project it out as Thrift expects
exactly one (and not 0)
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