Caizhi Weng created FLINK-27835:
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Summary: Introduce LeafPredicate interface and children method in
Predicate
Key: FLINK-27835
URL: https://issues.apache.org/jira/browse/FLINK-27835
Project: Flink
Issue Type: Sub-task
Reporter: Caizhi Weng
We'd like to expose a more simple interface in the row data abstraction layer.
Instead of the {{withPartitionFilter}}, {{withKeyFIlter}} and
{{withValueFilter}} methods in {{FileStoreScan}}, we'd like to introduce
{{RowDataScan}} containing only one {{withFilter}} method. We'll enclose the
logic to extract partition predicate or key predicate in this method.
To extract partition predicate from a big predicate object we'll need to look
into this predicate tree. That's why we'll need {{children}} method and
{{LeafPredicate}} interface to help us represent this tree structure.
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