Zhanghao Chen created FLINK-38205:
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Summary: Discard unknown fields for Protobuf format
Key: FLINK-38205
URL: https://issues.apache.org/jira/browse/FLINK-38205
Project: Flink
Issue Type: Sub-task
Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
Reporter: Zhanghao Chen
Currently, Flink Protobuf format does not discard unknown fields (and it does
not even provide an option for that!). When the user PB IDL is a subset of the
whole IDL, quite a few CPU is wasted for no means as Flink SQL will
automatically discard all unknown fields anyway when converting to RowData. We
should make it discard unknown fields by default.
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