protected override System.Data.Entity.Core.Query.InternalTrees.Node VisitApplyOp(
ApplyBaseOp op,
System.Data.Entity.Core.Query.InternalTrees.Node n)
{
this.VisitChildrenReverse(n);
return(n);
}
private static bool ProcessApplyOverAnything(
RuleProcessingContext context,
System.Data.Entity.Core.Query.InternalTrees.Node applyNode,
out System.Data.Entity.Core.Query.InternalTrees.Node newNode)
{
newNode = applyNode;
System.Data.Entity.Core.Query.InternalTrees.Node child0 = applyNode.Child0;
System.Data.Entity.Core.Query.InternalTrees.Node child1 = applyNode.Child1;
ApplyBaseOp applyBaseOp = (ApplyBaseOp)applyNode.Op;
Command command = context.Command;
ExtendedNodeInfo extendedNodeInfo1 = command.GetExtendedNodeInfo(child1);
ExtendedNodeInfo extendedNodeInfo2 = command.GetExtendedNodeInfo(child0);
bool flag = false;
if (applyBaseOp.OpType == OpType.OuterApply && extendedNodeInfo1.MinRows >= RowCount.One)
{
applyBaseOp = (ApplyBaseOp)command.CreateCrossApplyOp();
flag = true;
}
if (extendedNodeInfo1.ExternalReferences.Overlaps(extendedNodeInfo2.Definitions))
{
if (!flag)
{
return(false);
}
newNode = command.CreateNode((Op)applyBaseOp, child0, child1);
return(true);
}
if (applyBaseOp.OpType == OpType.CrossApply)
{
newNode = command.CreateNode((Op)command.CreateCrossJoinOp(), child0, child1);
}
else
{
LeftOuterJoinOp leftOuterJoinOp = command.CreateLeftOuterJoinOp();
ConstantPredicateOp trueOp = command.CreateTrueOp();
System.Data.Entity.Core.Query.InternalTrees.Node node = command.CreateNode((Op)trueOp);
newNode = command.CreateNode((Op)leftOuterJoinOp, child0, child1, node);
}
return(true);
}
/// <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
}
/// <summary>
/// ApplyOps
/// Common handling for all ApplyOps. Visit the right child first to capture
/// any references to the left, and then visit the left child.
/// </summary>
/// <param name="op"> </param>
/// <param name="n"> the apply op </param>
/// <returns> modified subtree </returns>
protected override Node VisitApplyOp(ApplyBaseOp op, Node n)
{
// visit the right child first, then the left
VisitChildrenReverse(n);
return(n);
}
protected override void VisitApplyOp(ApplyBaseOp op, System.Data.Entity.Core.Query.InternalTrees.Node n)
{
this.VisitNode(n.Child1);
this.VisitNode(n.Child0);
}