Jinfeng Ni created DRILL-4998:
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Summary: Perform parquet filter pushdown in logical planning.
Key: DRILL-4998
URL: https://issues.apache.org/jira/browse/DRILL-4998
Project: Apache Drill
Issue Type: Bug
Components: Query Planning & Optimization
Reporter: Jinfeng Ni
DRILL-1950 put parquet filter pushdown rule in physical planning phase, after
all join order related tasks have been done. Main reason for doing this is we
want to reduce the performance regression possibility caused by a different
join order, as a result of reduced row count in scan operator.
Ideally this should be done in logical planning, before join order planning is
done. Before we can make such change, we have to figure out how to adjust the
selectivity estimation of filter operator, after filter is pushed down to scan.
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