private static void GroupByAddRollup(GroupByClauseElementRollupOrCube spec, GroupByRollupNodeBase parent, IList <ExprNode> exprNodes)
{
foreach (var rolledUp in spec.RollupExpressions)
{
if (rolledUp is GroupByClauseElementExpr)
{
var expr = (GroupByClauseElementExpr)rolledUp;
exprNodes.Add(expr.Expr);
parent.Add(new GroupByRollupNodeSingleExpr(expr.Expr));
}
else
{
var combined = (GroupByClauseElementCombinedExpr)rolledUp;
exprNodes.AddAll(combined.Expressions);
parent.Add(new GroupByRollupNodeCombinedExpr(combined.Expressions));
}
}
}
public void Add(GroupByRollupNodeBase child)
{
_childNodes.Add(child);
}