zoucao created FLINK-26355:
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Summary: VarCharType was not be considered in HiveTableSqlFunction
Key: FLINK-26355
URL: https://issues.apache.org/jira/browse/FLINK-26355
Project: Flink
Issue Type: Improvement
Components: Table SQL / Ecosystem
Reporter: zoucao
VarCharType was not be considered in `HiveTableSqlFunction#coerce`, see
[link|https://github.com/apache/flink/blob/a7192af8707f3f0d0f30fc71f3477edd92135cac/flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/functions/utils/HiveTableSqlFunction.java#L146],
before invoke `HiveTableSqlFunction#coerce`, flink will call the method
`createFieldTypeFromLogicalType` to build argumentsArray, if the field's type
is varchar, the exception will be thrown.
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