protected override Expression VisitSubquery(SubqueryExpression subquery) { if ((subquery.NodeType == (ExpressionType)DbExpressionType.Scalar || subquery.NodeType == (ExpressionType)DbExpressionType.In) && subquery.Select != null) { MarkColumnAsUsed(subquery.Select.Alias, subquery.Select.Columns[0].Name); } return(base.VisitSubquery(subquery)); }
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 virtual Expression VisitSubquery(SubqueryExpression subquery) { switch ((DbExpressionType)subquery.NodeType) { case DbExpressionType.Scalar: return(this.VisitScalar(subquery as DbScalarExpression)); case DbExpressionType.Exists: return(this.VisitExists(subquery as DbExistsExpression)); case DbExpressionType.In: return(this.VisitIn(subquery as DbInExpression)); } return(subquery); }
protected virtual bool CompareSubquery(SubqueryExpression a, SubqueryExpression b) { if (a.NodeType != b.NodeType) { return(false); } switch ((DbExpressionType)a.NodeType) { case DbExpressionType.In: return(this.CompareIn(a as DbInExpression, b as DbInExpression)); case DbExpressionType.Scalar: return(this.CompareScalar(a as DbScalarExpression, b as DbScalarExpression)); case DbExpressionType.Exists: return(this.CompareExists(a as DbExistsExpression, b as DbExistsExpression)); } return(false); }
protected override Expression VisitSubquery(SubqueryExpression subquery) { return(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); }