[jira] [Created] (FLINK-7163) Make LogicalTableFunctionCall immutable

[Ruidong Li (JIRA)]

Ruidong Li created FLINK-7163:
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             Summary: Make LogicalTableFunctionCall immutable
                 Key: FLINK-7163
                 URL: https://issues.apache.org/jira/browse/FLINK-7163
             Project: Flink
          Issue Type: Improvement
          Components: Table API & SQL
            Reporter: Ruidong Li
            Assignee: Ruidong Li


All sub-classes of LogicalNode are immutable except for 
`LogicalTableFunctionCall`, it's better to make LogicalTableFunctionCall 
immutable



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