Esempio n. 1
0
 public override void Visit(PhysicalProjectOp op, Node n)
 {
     VisitPhysicalOpDefault(op, n);
     Assert(n.Children.Count >= 1, "PhysicalProjectOp needs at least 1 arg: found {0}", n.Children.Count);
     foreach (Node chi in n.Children)
     {
         AssertRelOpOrPhysicalOp(chi.Op);
     }
 }
Esempio n. 2
0
        /// <summary>
        /// Copies a PhysicalProjectOp
        /// </summary>
        /// <param name="op"></param>
        /// <param name="n"></param>
        /// <returns></returns>
        public override Node Visit(PhysicalProjectOp op, Node n)
        {
            // Visit the Node's children and map their Vars
            List <Node> children = ProcessChildren(n);

            // Copy the ProjectOp's VarSet
            VarList newVarList = Copy(op.Outputs);

            SimpleCollectionColumnMap newColumnMap = Copy(op.ColumnMap) as SimpleCollectionColumnMap;

            Debug.Assert(newColumnMap != null, "Coping of a physical project's columnMap did not return a SimpleCollectionColumnMap");
            // Create a new ProjectOp based on the copied VarSet
            PhysicalProjectOp newProject = m_destCmd.CreatePhysicalProjectOp(newVarList, newColumnMap);

            // Return a new Node that references the copied ProjectOp and has the copied child Nodes as its children
            return(m_destCmd.CreateNode(newProject, children));
        }
Esempio n. 3
0
 public override void Visit(PhysicalProjectOp op, Node n)
 {
     using (new AutoXml(this, op)) {
         using (new AutoXml(this, "outputs")) {
             foreach (Var v in op.Outputs)
             {
                 DumpVar(v);
             }
         }
         using (new AutoXml(this, "columnMap")) {
             op.ColumnMap.Accept(ColumnMapDumper.Instance, this);
         }
         using (new AutoXml(this, "input")) {
             VisitChildren(n);
         }
     }
 }