protected virtual Expression VisitSubquery(SubqueryExpression node)
{
var select = (SelectExpression) Visit(node.Select);
if (select != node.Select)
{
return VisitScalar((ScalarExpression) node);
}
return node;
}
protected override Expression VisitSubquery(SubqueryExpression subquery)
{
IList<OrderByExpression> saveOrderings = _gatheredOrderings;
_gatheredOrderings = null;
Expression result = base.VisitSubquery(subquery);
_gatheredOrderings = saveOrderings;
return result;
}
protected override Expression VisitSubquery(SubqueryExpression node)
{
Debug.Assert(node.Select.Columns.Count == 1);
MarkColumnAsUsed(node.Select.Alias, node.Select.Columns[0].Name);
Expression result = base.VisitSubquery(node);
return result;
}
