public static AggregationFunction Create(string name, List <ScalarValue> args)
{
if (mapping.TryGetValue(name, out ConstructorInfo constructor))
{
IEnumerator <ScalarValue> enumerator = args.GetEnumerator();
AggregationFunction newFunction = (AggregationFunction)constructor.Invoke(new object[] { enumerator });
newFunction.Name = name;
return(newFunction);
}
throw new UnknownFunctionException($"Unknown function: '{name}'");
}
public override ScalarValue VisitSeparatedElement(SeparatedElement node)
{
Kusto.Language.Syntax.QueryBlock query = node.Root as Kusto.Language.Syntax.QueryBlock;
var statement = query.Statements[0];
var expressionStatement = statement.Element as ExpressionStatement;
if (expressionStatement.Expression is Kusto.Language.Syntax.SummarizeOperator)
{
if (node.Parent.Parent is SummarizeByClause &&
node.Element is FunctionCallExpression functionCallExpression)
{
return(functionCallExpression.Accept(this));
}
if (node.Parent.Parent is SummarizeByClause &&
node.Element is NameReference identifierNameReference)
{
return(identifierNameReference.Accept(this));
}
if (node.Element is FunctionCallExpression functionCallExpression1)
{
AggregationFunction aggregationFunction =
VisitFunctionCallExpression(functionCallExpression1) as AggregationFunction;
RxKqlScalarValue retVal = new RxKqlScalarValue
{
Left = aggregationFunction.Name,
Right = aggregationFunction
};
return(retVal);
}
if (node.Element is SimpleNamedExpression simpleNamedExpression)
{
AggregationFunction aggregationFunction =
simpleNamedExpression.Expression.Accept(this) as AggregationFunction;
RxKqlScalarValue retVal = new RxKqlScalarValue
{
Left = simpleNamedExpression.Name.SimpleName,
Right = aggregationFunction
};
return(retVal);
}
}
return(base.VisitSeparatedElement(node));
}
