public static string Render(this AstSetWindowFieldsOperator @operator)
{
return(@operator switch
{
AstSetWindowFieldsOperator.AddToSet => "$addToSet",
AstSetWindowFieldsOperator.Average => "$avg",
AstSetWindowFieldsOperator.Count => "$count",
AstSetWindowFieldsOperator.CovariancePop => "$covariancePop",
AstSetWindowFieldsOperator.CovarianceSamp => "$covarianceSamp",
AstSetWindowFieldsOperator.DenseRank => "$denseRank",
AstSetWindowFieldsOperator.Derivative => "$derivative",
AstSetWindowFieldsOperator.DocumentNumber => "$documentNumber",
AstSetWindowFieldsOperator.ExpMovingAvgWithAlphaWeighting => "$expMovingAvg",
AstSetWindowFieldsOperator.ExpMovingAvgWithPositionalWeighting => "$expMovingAvg",
AstSetWindowFieldsOperator.First => "$first",
AstSetWindowFieldsOperator.Integral => "$integral",
AstSetWindowFieldsOperator.Last => "$last",
AstSetWindowFieldsOperator.Max => "$max",
AstSetWindowFieldsOperator.Min => "$min",
AstSetWindowFieldsOperator.Push => "$push",
AstSetWindowFieldsOperator.Rank => "$rank",
AstSetWindowFieldsOperator.Shift => "$shift",
AstSetWindowFieldsOperator.StdDevPop => "$stdDevPop",
AstSetWindowFieldsOperator.StdDevSamp => "$stdDevSamp",
AstSetWindowFieldsOperator.Sum => "$sum",
_ => throw new InvalidOperationException($"Unexpected SetWindowFields operator: {@operator}.")
});
public AstSetWindowFieldsWindowExpression(AstSetWindowFieldsOperator @operator, IEnumerable <AstExpression> args, AstSetWindowFieldsWindow window)
{
_operator = @operator;
_args = Ensure.IsNotNull(args, nameof(args)).AsReadOnlyList();
_window = window; // optional
}
