Tim Chan created PARQUET-295:
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Summary: Filter predicate should be able to filter on columns not
specified in projection pushdown
Key: PARQUET-295
URL: https://issues.apache.org/jira/browse/PARQUET-295
Project: Parquet
Issue Type: Improvement
Components: parquet-mr
Affects Versions: 1.6.0
Reporter: Tim Chan
Priority: Minor
When using both filter predicate and projection pushdown of columns, the column
specified in the filter predicate, should not have to be specified in the
projection pushdown.
For example, if I want the first names of students that are over the age of 16,
then I should be able to specify ParquetInputFormat.setFilterPredicate(jobConf,
IntColumn("age") > 16) and only have to specify
ThriftReadSupport.setProjectionPushdown(jobConf, "fname")
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