protected override Expression VisitSubquery(SubqueryExpression subquery)
{
var saveOrderings = this.gatheredOrderings;
this.gatheredOrderings = null;
var result = base.VisitSubquery(subquery);
this.gatheredOrderings = saveOrderings;
return(result);
}
protected override Expression VisitSubquery(SubqueryExpression subquery)
{
if ((subquery.NodeType == (ExpressionType)DbExpressionType.Scalar ||
subquery.NodeType == (ExpressionType)DbExpressionType.In) &&
subquery.Select != null)
{
System.Diagnostics.Debug.Assert(subquery.Select.Columns.Count == 1);
MarkColumnAsUsed(subquery.Select.Alias, subquery.Select.Columns[0].Name);
}
return(base.VisitSubquery(subquery));
}
protected override Expression VisitSubquery(SubqueryExpression subquery)
{
// don't count aggregates in subqueries
return(subquery);
}
protected override Expression VisitSubquery(SubqueryExpression subquery)
{
// don't gather inside scalar & exists
return(subquery);
}
protected override Expression VisitSubquery(SubqueryExpression subquery)
{
return(subquery);
}