public override NodeInfo Visit(PhysicalProjectOp op, Node n)
{
ExtendedNodeInfo extendedNodeInfo1 = this.InitExtendedNodeInfo(n);
foreach (Node child in n.Children)
{
NodeInfo nodeInfo = this.GetNodeInfo(child);
extendedNodeInfo1.ExternalReferences.Or(nodeInfo.ExternalReferences);
}
extendedNodeInfo1.Definitions.InitFrom((IEnumerable <Var>)op.Outputs);
extendedNodeInfo1.LocalDefinitions.InitFrom(extendedNodeInfo1.Definitions);
ExtendedNodeInfo extendedNodeInfo2 = this.GetExtendedNodeInfo(n.Child0);
if (!extendedNodeInfo2.Keys.NoKeys)
{
VarVec varVec = this.m_command.CreateVarVec(extendedNodeInfo2.Keys.KeyVars);
varVec.Minus(extendedNodeInfo1.Definitions);
if (varVec.IsEmpty)
{
extendedNodeInfo1.Keys.InitFrom(extendedNodeInfo2.Keys);
}
}
extendedNodeInfo1.NonNullableDefinitions.Or(extendedNodeInfo2.NonNullableDefinitions);
extendedNodeInfo1.NonNullableDefinitions.And(extendedNodeInfo1.Definitions);
extendedNodeInfo1.NonNullableVisibleDefinitions.Or(extendedNodeInfo2.NonNullableVisibleDefinitions);
return((NodeInfo)extendedNodeInfo1);
}
/// <summary>
/// Computes a NodeInfo for a PhysicalProjectOp.
/// Definitions = OutputVars
/// LocalDefinitions = None
/// Keys = None
/// External References = any external references from the inputs
/// RowCount=default
/// NonNullabeDefinitions = NonNullabeDefinitions of the input RelOp that are among the definitions
/// NonNullableInputDefinitions = NonNullabeDefinitions of the input RelOp
/// </summary>
/// <param name="op"> The PhysicalProjectOp </param>
/// <param name="n"> corresponding Node </param>
public override NodeInfo Visit(PhysicalProjectOp op, Node n)
{
var nodeInfo = InitExtendedNodeInfo(n);
foreach (var chi in n.Children)
{
var childNodeInfo = GetNodeInfo(chi);
nodeInfo.ExternalReferences.Or(childNodeInfo.ExternalReferences);
}
nodeInfo.Definitions.InitFrom(op.Outputs);
nodeInfo.LocalDefinitions.InitFrom(nodeInfo.Definitions);
//
// Inherit the keys from the child - but only if all the columns were projected
// out
//
var driverChildNodeInfo = GetExtendedNodeInfo(n.Child0);
if (!driverChildNodeInfo.Keys.NoKeys)
{
var missingKeys = m_command.CreateVarVec(driverChildNodeInfo.Keys.KeyVars);
missingKeys.Minus(nodeInfo.Definitions);
if (missingKeys.IsEmpty)
{
nodeInfo.Keys.InitFrom(driverChildNodeInfo.Keys);
}
}
//Non-nullable definitions
nodeInfo.NonNullableDefinitions.Or(driverChildNodeInfo.NonNullableDefinitions);
nodeInfo.NonNullableDefinitions.And(nodeInfo.Definitions);
nodeInfo.NonNullableVisibleDefinitions.Or(driverChildNodeInfo.NonNullableVisibleDefinitions);
return(nodeInfo);
}
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 (var chi in n.Children)
{
AssertRelOpOrPhysicalOp(chi.Op);
}
}
// <summary>
// Copies a PhysicalProjectOp
// </summary>
public override Node Visit(PhysicalProjectOp op, Node n)
{
// Visit the Node's children and map their Vars
var children = ProcessChildren(n);
// Copy the ProjectOp's VarSet
var newVarList = Copy(op.Outputs);
var 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
var 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));
}
public override void Visit(PhysicalProjectOp op, Node n)
{
using (new Dump.AutoXml(this, (Op)op))
{
using (new Dump.AutoXml(this, "outputs"))
{
foreach (Var output in (List <Var>)op.Outputs)
{
this.DumpVar(output);
}
}
using (new Dump.AutoXml(this, "columnMap"))
op.ColumnMap.Accept <Dump>((ColumnMapVisitor <Dump>)Dump.ColumnMapDumper.Instance, this);
using (new Dump.AutoXml(this, "input"))
this.VisitChildren(n);
}
}
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);
}
}
}
public override Node Visit(PhysicalProjectOp op, Node n)
{
List <Node> args = this.ProcessChildren(n);
return(this.m_destCmd.CreateNode((Op)this.m_destCmd.CreatePhysicalProjectOp(this.Copy(op.Outputs), this.Copy((ColumnMap)op.ColumnMap) as SimpleCollectionColumnMap), args));
}
public virtual void Visit(PhysicalProjectOp op, Node n)
{
this.VisitPhysicalOpDefault((PhysicalOp)op, n);
}
// <summary>
// PhysicalProjectOp
// </summary>
public virtual TResultType Visit(PhysicalProjectOp op, Node n)
{
return(VisitPhysicalOpDefault(op, n));
}