Rui Wang created CALCITE-2889:
---------------------------------

             Summary: EnumUtils's from internal cannot handle function with 
array type
                 Key: CALCITE-2889
                 URL: https://issues.apache.org/jira/browse/CALCITE-2889
             Project: Calcite
          Issue Type: Bug
          Components: core
            Reporter: Rui Wang


https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/adapter/enumerable/EnumUtils.java#L212

If "targetTypes" is from "method.getParameterTypes()" and if method's signature 
is "func(stirng ... args)", then "targetTypes" will contain one type 
"String[].class", but "expressions" could contain one than one element, so it 
throws IndexOutOfBoundException.



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