[jira] [Created] (FLINK-18628) Invalid error message for overloaded methods with same parameter name

["Timo Walther (Jira)" <ji...@apache.org>]

Timo Walther created FLINK-18628:
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             Summary: Invalid error message for overloaded methods with same parameter name
                 Key: FLINK-18628
                 URL: https://issues.apache.org/jira/browse/FLINK-18628
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / API
            Reporter: Timo Walther
            Assignee: Timo Walther


If a function has overloaded evaluation methods but same argument names, this leads to a confusing error message where types are missing:

{code}
Caused by: org.apache.flink.table.api.ValidationException: Invalid input arguments. Expected signatures are:
test-catalog.TEST_DB.myScalarFunc(a => )
	at org.apache.flink.table.types.inference.TypeInferenceUtil.createInvalidInputException(TypeInferenceUtil.java:190)
	at org.apache.flink.table.planner.functions.inference.TypeInferenceOperandChecker.checkOperandTypesOrError(TypeInferenceOperandChecker.java:131)
	at org.apache.flink.table.planner.functions.inference.TypeInferenceOperandChecker.checkOperandTypes(TypeInferenceOperandChecker.java:89)
	... 79 common frames omitted
Caused by: org.apache.flink.table.api.ValidationException: Invalid input arguments.
	at org.apache.flink.table.types.inference.TypeInferenceUtil.inferInputTypes(TypeInferenceUtil.java:467)
	at org.apache.flink.table.types.inference.TypeInferenceUtil.adaptArguments(TypeInferenceUtil.java:123)
	at org.apache.flink.table.types.inference.TypeInferenceUtil.adaptArguments(TypeInferenceUtil.java:102)
	at org.apache.flink.table.planner.functions.inference.TypeInferenceOperandChecker.checkOperandTypesOrError(TypeInferenceOperandChecker.java:126)
	... 80 common frames omitted
{code}



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