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  1. Flink
  2. FLINK-14367

Fully support for converting RexNode to Expression

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      Currently, the RexNodeToExpressionConverter in both planners are not fully support. There're many RexNodes can not be converted to Expressions.

      1) RexFieldAccess -> GET call
      2) Literals in interval types and complex types and TimeUnitRange
      3) TRIM(BOTH/LEADING/HEADING, ..)
      ...

      We should have a comprehensive tests to cover all cases. A good idea is to verify with ExpressionConverter together.

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        is related to

        Sub-task - The sub-task of the issue FLINK-14323 Serialize Expression to String and parse String to Expression

        • Major - Major loss of function.
        • Closed

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            Unassigned Unassigned
            jark Jark Wu
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