Jark Wu created FLINK-17437:
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Summary: Use StringData instead of BinaryStringData in code
generation
Key: FLINK-17437
URL: https://issues.apache.org/jira/browse/FLINK-17437
Project: Flink
Issue Type: Improvement
Components: Table SQL / Planner
Reporter: Jark Wu
In FLINK-16996, we force to use {{BinaryStringData}} instead of {{StringData}}
in code generation. We hard cast StringData to BinaryStringData when
{{RowData#getString}}. The motivation behind this is that this makes the code
generator easily to generate opeartions based on string. There are too many
invokings on the {{BinaryStringData}} now, if we use {{StringData}} in code
generation, we have to refactor a lot of codes.
However, this may be worth to do. Because using the public interface
{{StringData}} is more straightforword.
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