zoucao created FLINK-25476:
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Summary: CharType lost in the creation of MaxAggFunction &
MinAggFunction
Key: FLINK-25476
URL: https://issues.apache.org/jira/browse/FLINK-25476
Project: Flink
Issue Type: Bug
Components: Table SQL / Planner
Affects Versions: 1.15.0
Reporter: zoucao
CharType lost in AggFunctionFactory#createMinAggFunction(Retract) and
AggFunctionFactory#createMaxAggFunction(Retract&nonRetract).
If execute
{code:java}
SELECT Max('a') ...
{code}
, The following exception will throw.
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Caused by: org.apache.flink.table.api.TableException: Max aggregate function
does not support type: ''CHAR''.
Please re-check the data type.
at
org.apache.flink.table.planner.plan.utils.AggFunctionFactory.createMaxAggFunction(AggFunctionFactory.scala:395)
at
org.apache.flink.table.planner.plan.utils.AggFunctionFactory.createAggFunction(AggFunctionFactory.scala:76)
at
org.apache.flink.table.planner.plan.utils.AggregateUtil$.$anonfun$transformToAggregateInfoList$1(AggregateUtil.scala:444)
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