Cheng Lian created PARQUET-654:
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Summary: Make record-level filtering optional
Key: PARQUET-654
URL: https://issues.apache.org/jira/browse/PARQUET-654
Project: Parquet
Issue Type: Improvement
Components: parquet-mr
Reporter: Cheng Lian
For some engines, especially those with vectorized Parquet readers, filter
predicate can often be evaluated more efficiently by the engine. In these
cases, Parquet record-level filtering may even slow down query execution when
filter push-down is enabled. On the other hand, when the data is well prepared,
filter push-down can be very valuable due to row group level filtering.
One possible improvement here is to add a configuration option that makes
record-level filtering optional. In this way, the upper-level engine may
leverage both Parquet row group level filtering and faster native record-level
filtering.
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