protected override Expression VisitSubquery(SubqueryExpression subquery) { if ((subquery.NodeType == (ExpressionType)DbExpressionType.Scalar || subquery.NodeType == (ExpressionType)DbExpressionType.In) && subquery.Select != null) { //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) { IList <OrderExpression> saveOrderings = gatheredOrderings; gatheredOrderings = null; Expression result = base.VisitSubquery(subquery); gatheredOrderings = saveOrderings; return(result); }
protected virtual Expression VisitSubquery(SubqueryExpression subquery) { switch ((DbExpressionType)subquery.NodeType) { case DbExpressionType.Scalar: return(VisitScalar((ScalarExpression)subquery)); case DbExpressionType.Exists: return(VisitExists((ExistsExpression)subquery)); case DbExpressionType.In: return(VisitIn((InExpression)subquery)); } return(subquery); }
protected virtual bool CompareSubquery(SubqueryExpression a, SubqueryExpression b) { if (a.NodeType != b.NodeType) { return(false); } switch ((DbExpressionType)a.NodeType) { case DbExpressionType.Scalar: return(CompareScalar((ScalarExpression)a, (ScalarExpression)b)); case DbExpressionType.Exists: return(CompareExists((ExistsExpression)a, (ExistsExpression)b)); case DbExpressionType.In: return(CompareIn((InExpression)a, (InExpression)b)); } return(false); }
protected override Expression VisitSubquery(SubqueryExpression subquery) { // don't gather inside scalar & exists return(subquery); }
protected override Expression VisitSubquery(SubqueryExpression subquery) { return(subquery); }
protected override Expression VisitSubquery(SubqueryExpression subquery) { // don't count aggregates in subqueries return(subquery); }