public static ExprAggregateNodeParamDesc GetValidatePositionalParams(ExprNode[] childNodes, bool allowOnlyGroupBy)
{
ExprAggregateLocalGroupByDesc optionalLocalGroupBy = null;
var count = 0;
foreach (var node in childNodes)
{
if (!IsNonPositionalParameter(node))
{
count++;
}
else
{
var namedParameterNode = (ExprNamedParameterNodeImpl)node;
if (allowOnlyGroupBy && namedParameterNode.ParameterName.ToLower() != "group_by")
{
throw new ExprValidationException("Invalid named parameter '" + namedParameterNode.ParameterName + "' (did you mean 'group_by'?)");
}
optionalLocalGroupBy = new ExprAggregateLocalGroupByDesc(namedParameterNode.ChildNodes);
}
}
var positionals = new ExprNode[count];
count = 0;
foreach (var node in childNodes)
{
if (!IsNonPositionalParameter(node))
{
positionals[count++] = node;
}
}
return(new ExprAggregateNodeParamDesc(positionals, optionalLocalGroupBy));
}
public ExprAggregateNodeParamDesc(
ExprNode[] positionalParams,
ExprAggregateLocalGroupByDesc optLocalGroupBy,
ExprNode optionalFilter)
{
PositionalParams = positionalParams;
OptLocalGroupBy = optLocalGroupBy;
OptionalFilter = optionalFilter;
}
public void ValidatePositionals()
{
ExprAggregateNodeParamDesc paramDesc = ExprAggregateNodeUtil.GetValidatePositionalParams(ChildNodes, !(this is ExprAggregationPlugInNodeMarker));
_optionalAggregateLocalGroupByDesc = paramDesc.OptLocalGroupBy;
if (_optionalAggregateLocalGroupByDesc != null)
{
ExprNodeUtility.ValidateNoSpecialsGroupByExpressions(_optionalAggregateLocalGroupByDesc.PartitionExpressions);
}
_positionalParams = paramDesc.PositionalParams;
}
public static ExprAggregateNodeParamDesc GetValidatePositionalParams(IList <ExprNode> childNodes, bool builtinAggregationFunc)
{
ExprAggregateLocalGroupByDesc optionalLocalGroupBy = null;
ExprNode optionalFilter = null;
var count = 0;
foreach (ExprNode node in childNodes)
{
if (!IsNonPositionalParameter(node))
{
count++;
}
else
{
var namedParameterNode = (ExprNamedParameterNode)node;
var paramNameLower = namedParameterNode.ParameterName.ToLowerInvariant();
if (paramNameLower == "group_by")
{
optionalLocalGroupBy = new ExprAggregateLocalGroupByDesc(namedParameterNode.ChildNodes);
}
else if (paramNameLower == "filter")
{
if ((namedParameterNode.ChildNodes.Count != 1) ||
(namedParameterNode.ChildNodes[0].ExprEvaluator.ReturnType.GetBoxedType() != typeof(bool?)))
{
throw new ExprValidationException("Filter named parameter requires a single expression returning a boolean-typed value");
}
optionalFilter = namedParameterNode.ChildNodes[0];
}
else if (builtinAggregationFunc)
{
throw new ExprValidationException("Invalid named parameter '" + namedParameterNode.ParameterName + "' (did you mean 'group_by' or 'filter'?)");
}
}
}
var positionals = new ExprNode[count];
count = 0;
foreach (var node in childNodes)
{
if (!IsNonPositionalParameter(node))
{
positionals[count++] = node;
}
}
return(new ExprAggregateNodeParamDesc(positionals, optionalLocalGroupBy, optionalFilter));
}