EveyWu created CALCITE-6445:
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Summary: Add REVERSE function (enabled in Spark library)
Key: CALCITE-6445
URL: https://issues.apache.org/jira/browse/CALCITE-6445
Project: Calcite
Issue Type: Improvement
Reporter: EveyWu
Add Spark functions that have been implemented but have different
OperandTypes/Returns.
Add Function
[REVERSE(str|array)|https://spark.apache.org/docs/latest/api/sql/#reverse]
The parameter type supports not only the string type but also the array type.
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