Jingsong Lee created FLINK-12443:
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Summary: Replace InternalType with LogicalType in blink runner
Key: FLINK-12443
URL: https://issues.apache.org/jira/browse/FLINK-12443
Project: Flink
Issue Type: Sub-task
Components: Table SQL / Planner
Reporter: Jingsong Lee
Assignee: Jingsong Lee
LogicalType can cover all InternalType, and its function is more perfect.
With isNullable, we can do null check optimizer in code generator.
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