Jun Zhang created FLINK-21283:
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Summary: Support sql extension for flink sql
Key: FLINK-21283
URL: https://issues.apache.org/jira/browse/FLINK-21283
Project: Flink
Issue Type: Improvement
Components: Table SQL / API
Affects Versions: 1.12.1
Reporter: Jun Zhang
Fix For: 1.13.0
I think we should add sql extension for flink sql so that users can customize
sql parsing, sql optimization, etc. we can refer to [spark sql extension
|https://issues.apache.org/jira/browse/SPARK-18127]
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