internal virtual PhysicalProjectOp CreatePhysicalProjectOp(Var outputVar)
{
VarList varList = Command.CreateVarList();
varList.Add(outputVar);
VarRefColumnMap varRefColumnMap = new VarRefColumnMap(outputVar);
SimpleCollectionColumnMap columnMap = new SimpleCollectionColumnMap(TypeUtils.CreateCollectionType(varRefColumnMap.Type), (string)null, (ColumnMap)varRefColumnMap, new SimpleColumnMap[0], new SimpleColumnMap[0]);
return(this.CreatePhysicalProjectOp(varList, columnMap));
}
// <summary>
// Make a copy of the current node. Also return an ordered list of the new
// Vars corresponding to the vars in "varList"
// </summary>
// <param name="cmd"> current command </param>
// <param name="node"> the node to clone </param>
// <param name="varList"> list of Vars </param>
// <param name="newVarList"> list of "new" Vars </param>
// <returns> the cloned node </returns>
internal static Node Copy(Command cmd, Node node, VarList varList, out VarList newVarList)
{
VarMap varMap;
var newNode = Copy(cmd, node, out varMap);
newVarList = Command.CreateVarList();
foreach (var v in varList)
{
var newVar = varMap[v];
newVarList.Add(newVar);
}
return(newNode);
}
internal static Node Copy(Command cmd, Node node, VarList varList, out VarList newVarList)
{
VarMap varMap;
Node node1 = OpCopier.Copy(cmd, node, out varMap);
newVarList = Command.CreateVarList();
foreach (Var var1 in (List <Var>)varList)
{
Var var2 = varMap[var1];
newVarList.Add(var2);
}
return(node1);
}