[jira] [Created] (CALCITE-1780) Add `required Order` and `requiresOver` parameters to the constructor of `SqlUserDefinedAggregate Function`

[sunjincheng (JIRA)]

sunjincheng created CALCITE-1780:
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             Summary: Add `required Order` and `requiresOver` parameters to the 
constructor of `SqlUserDefinedAggregate Function`
                 Key: CALCITE-1780
                 URL: https://issues.apache.org/jira/browse/CALCITE-1780
             Project: Calcite
          Issue Type: Improvement
          Components: core
            Reporter: sunjincheng
            Assignee: Julian Hyde



Currently {{org.apache.calcite.sql.validate.SqlUserDefinedAggFunction}} calls 
the constructor of SqlAggFunction:
{code}
Protected SqlAggFunction (
       String name,
       SqlIdentifier sqlIdentifier,
       SqlKind kind,
       SqlReturnTypeInference returnTypeInference,
       SqlOperandTypeInference operandTypeInference,
       SqlOperandTypeChecker operandTypeChecker,
       SqlFunctionCategory funcType,
       Boolean requiresOrder,
       Boolean requiresOver) 
{code}
The requiresOrder = false, requiresOver = false. as follow:
{code}
Public SqlUserDefinedAggFunction (SqlIdentifier opName,
       SqlReturnTypeInference returnTypeInference,
       SqlOperandTypeInference operandTypeInference,
       SqlOperandTypeChecker operandTypeChecker, AggregateFunction function) {
     Super (Util.last (opName.names), opName, SqlKind.OTHER_FUNCTION,
         ReturnTypeInference, operandTypeInference, operandTypeChecker,
         SqlFunctionCategory.USER_DEFINED_FUNCTION, false, false);
     This.function = function;
   } 
{code}
I want add `required Order` and `requiresOver` parameters to the constructor of 
`SqlUserDefinedAggregate Function`.



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