private static void AnalyzeRollup(
GroupByClauseElementRollupOrCube rollup,
IList<ExprNode> expressions)
{
foreach (var ex in rollup.RollupExpressions) {
if (ex is GroupByClauseElementExpr) {
expressions.Add(((GroupByClauseElementExpr) ex).Expr);
}
else {
var combined = (GroupByClauseElementCombinedExpr) ex;
expressions.AddAll(combined.Expressions);
}
}
}
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));
}
}
}
