protected override NodeInfo VisitApplyOp(ApplyBaseOp op, Node n)
{
ExtendedNodeInfo extendedNodeInfo1 = this.InitExtendedNodeInfo(n);
ExtendedNodeInfo extendedNodeInfo2 = this.GetExtendedNodeInfo(n.Child0);
ExtendedNodeInfo extendedNodeInfo3 = this.GetExtendedNodeInfo(n.Child1);
extendedNodeInfo1.Definitions.Or(extendedNodeInfo2.Definitions);
extendedNodeInfo1.Definitions.Or(extendedNodeInfo3.Definitions);
extendedNodeInfo1.ExternalReferences.Or(extendedNodeInfo2.ExternalReferences);
extendedNodeInfo1.ExternalReferences.Or(extendedNodeInfo3.ExternalReferences);
extendedNodeInfo1.ExternalReferences.Minus(extendedNodeInfo1.Definitions);
extendedNodeInfo1.Keys.InitFrom(extendedNodeInfo2.Keys, extendedNodeInfo3.Keys);
extendedNodeInfo1.NonNullableDefinitions.InitFrom(extendedNodeInfo2.NonNullableDefinitions);
if (op.OpType == OpType.CrossApply)
{
extendedNodeInfo1.NonNullableDefinitions.Or(extendedNodeInfo3.NonNullableDefinitions);
}
extendedNodeInfo1.NonNullableVisibleDefinitions.InitFrom(extendedNodeInfo2.NonNullableDefinitions);
extendedNodeInfo1.NonNullableVisibleDefinitions.Or(extendedNodeInfo3.NonNullableDefinitions);
RowCount maxRows = extendedNodeInfo2.MaxRows > RowCount.One || extendedNodeInfo3.MaxRows > RowCount.One ? RowCount.Unbounded : RowCount.One;
RowCount minRows = op.OpType == OpType.CrossApply ? RowCount.Zero : extendedNodeInfo2.MinRows;
extendedNodeInfo1.SetRowCount(minRows, maxRows);
return((NodeInfo)extendedNodeInfo1);
}
/// <summary>
/// Computes a NodeInfo for a CrossApply/OuterApply op.
/// Definitions = Definitions of my children
/// LocalDefinitions = None
/// Keys = Concatenation of the keys of my children (if every one of them has keys; otherwise, null)
/// External References = any external references from the inputs
/// RowCount:
/// CrossApply: minRows=0; MaxRows=Unbounded
/// (MaxRows = 1, if both inputs have MaxRow less than or equal to 1)
/// OuterApply: minRows=leftInput.MinRows; MaxRows=Unbounded
/// (MaxRows = 1, if both inputs have MaxRow less than or equal to 1)
/// NonNullableDefinitions =
/// CrossApply: NonNullableDefinitions of both children
/// OuterApply: NonNullableDefinitions of the left child
/// NonNullableInputDefinitions = NonNullabeDefinitions of both children
/// </summary>
/// <param name="op"> The ApplyOp </param>
/// <param name="n"> corresponding Node </param>
protected override NodeInfo VisitApplyOp(ApplyBaseOp op, Node n)
{
var nodeInfo = InitExtendedNodeInfo(n);
var leftRelOpNodeInfo = GetExtendedNodeInfo(n.Child0);
var rightRelOpNodeInfo = GetExtendedNodeInfo(n.Child1);
nodeInfo.Definitions.Or(leftRelOpNodeInfo.Definitions);
nodeInfo.Definitions.Or(rightRelOpNodeInfo.Definitions);
nodeInfo.ExternalReferences.Or(leftRelOpNodeInfo.ExternalReferences);
nodeInfo.ExternalReferences.Or(rightRelOpNodeInfo.ExternalReferences);
nodeInfo.ExternalReferences.Minus(nodeInfo.Definitions);
nodeInfo.Keys.InitFrom(leftRelOpNodeInfo.Keys, rightRelOpNodeInfo.Keys);
//NonNullableDefinitions
nodeInfo.NonNullableDefinitions.InitFrom(leftRelOpNodeInfo.NonNullableDefinitions);
if (op.OpType
== OpType.CrossApply)
{
nodeInfo.NonNullableDefinitions.Or(rightRelOpNodeInfo.NonNullableDefinitions);
}
nodeInfo.NonNullableVisibleDefinitions.InitFrom(leftRelOpNodeInfo.NonNullableDefinitions);
nodeInfo.NonNullableVisibleDefinitions.Or(rightRelOpNodeInfo.NonNullableDefinitions);
RowCount maxRows;
if (leftRelOpNodeInfo.MaxRows <= RowCount.One
&&
rightRelOpNodeInfo.MaxRows <= RowCount.One)
{
maxRows = RowCount.One;
}
else
{
maxRows = RowCount.Unbounded;
}
var minRows = (op.OpType == OpType.CrossApply) ? RowCount.Zero : leftRelOpNodeInfo.MinRows;
nodeInfo.SetRowCount(minRows, maxRows);
return(nodeInfo);
}
// <summary>
// ApplyOp common processing
// </summary>
protected override Node VisitApplyOp(ApplyBaseOp op, Node n)
{
return ApplyOpJoinOp(op, n);
}
/// <summary>
/// Perform default relop processing; Also "require" the join-elimination phase
/// </summary>
/// <param name="op"></param>
/// <param name="n"></param>
/// <returns></returns>
protected override Node VisitApplyOp(ApplyBaseOp op, Node n)
{
m_compilerState.MarkPhaseAsNeeded(PlanCompilerPhase.JoinElimination);
return VisitRelOpDefault(op, n);
}
/// <summary>
/// Default handler for all ApplyOps
/// </summary>
/// <param name="op"> apply op </param>
/// <param name="n"> </param>
protected virtual void VisitApplyOp(ApplyBaseOp op, Node n)
{
VisitRelOpDefault(op, n);
}
protected override void VisitApplyOp(ApplyBaseOp op, Node n)
{
VisitRelOpDefault(op, n);
AssertRelOpOrPhysicalOp(n.Child0.Op);
AssertRelOpOrPhysicalOp(n.Child1.Op);
}
/// <summary>
/// ApplyOp handling
/// CrossApplyOp handling
/// OuterApplyOp handling
///
/// Handling for all ApplyOps: Process the right child, and then
/// the left child - since the right child may have references to the
/// left
/// </summary>
/// <param name="op"> apply op </param>
/// <param name="n"> </param>
protected override void VisitApplyOp(ApplyBaseOp op, Node n)
{
VisitNode(n.Child1); // the right input
VisitNode(n.Child0); // the left input
}
protected virtual void VisitApplyOp(ApplyBaseOp op, Node n)
{
this.VisitRelOpDefault((RelOp)op, n);
}
protected override void VisitApplyOp(ApplyBaseOp op, Node n)
{
VisitRelOpDefault(op, n);
AssertRelOpOrPhysicalOp(n.Child0.Op);
AssertRelOpOrPhysicalOp(n.Child1.Op);
}
protected virtual void VisitApplyOp(ApplyBaseOp op, Node n)
{
VisitRelOpDefault(op, n);
}
// <summary>
// Common handling for all ApplyOps
// </summary>
// <param name="op"> the ApplyOp </param>
// <param name="n"> the node to process </param>
// <returns> a potentially modified subtree </returns>
protected virtual TResultType VisitApplyOp(ApplyBaseOp op, Node n)
{
return(VisitRelOpDefault(op, n));
}
