[jira] [Created] (FLINK-16609) Promotes the column name representation of SQL-CLI

["Danny Chen (Jira)" <ji...@apache.org>]

Danny Chen created FLINK-16609:
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             Summary: Promotes the column name representation of SQL-CLI
                 Key: FLINK-16609
                 URL: https://issues.apache.org/jira/browse/FLINK-16609
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / Client
    Affects Versions: 1.10.0
            Reporter: Danny Chen
             Fix For: 1.11.0


The SQL-CLI now outputs the column name as the name that comes from the plan, which is  not that readable sometimes, i can think of 2 cases that can be promoted:

1. Expression like "a + b" should output "a + b" instead of "$Expr{index}"
2. We should always output the alias if it's there, now, the alias in the plan may be dropped because of 2 reasons:
  - Project remove rule would remove the project without considering the alias
  - after CALCITE-3713, some CALC/PROJ would be reused while ignoring the column alias



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