[jira] [Created] (FLINK-21239) Upgrade Calcite version to 1.28

[Timo Walther (Jira)]

Timo Walther created FLINK-21239:
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             Summary: Upgrade Calcite version to 1.28
                 Key: FLINK-21239
                 URL: https://issues.apache.org/jira/browse/FLINK-21239
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / Legacy Planner, Table SQL / Planner
            Reporter: Timo Walther


The following files should be removed from the Flink code base during an 
upgrade:
- org.apache.calcite.rex.RexLiteral



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