GroupPlanNode Class
Definition
Important
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Represents a grouping operation in a Map-Reduce process.
public sealed class GroupPlanNode : Microsoft.StreamProcessing.PlanNodetype GroupPlanNode = class
inherit PlanNodePublic NotInheritable Class GroupPlanNode
Inherits PlanNode- Inheritance
Properties
| CodeGenReport |
Tells what issues, if any, were encountered when trying to create a generated artifact. (Inherited from PlanNode) |
| GroupingExpression |
The expression used to group elements relative to a grouping key. |
| InputKeyType |
The type of the grouping key of the input stream. |
| IsGenerated |
Tells whether the current node in the query plan was generated using code generation internally. (Inherited from PlanNode) |
| IsShuffle |
States whether the current operation is a shuffle. |
| KeyType |
Reports the grouping key type of the running query node. (Inherited from PlanNode) |
| Kind |
Indicates that the current node is a grouping operation. |
| PayloadType |
Reports the payload type of the running query node. (Inherited from PlanNode) |
| Previous |
The previous node in the plan, the input to the grouping operation. |
| ShuffleId |
States the shuffle ID of the grouping operation. If the operator is not a shuffle, this value should be int.MinValue. |
| TotalBranches |
States the number of branches participating in the grouping operation. If the operator is not a shuffle, this value should be 1. |
Methods
| GetCurrentlyBufferedInputCount() |
Retrieve the count of tuples currently resident in memory as part of input calculations. (Inherited from PlanNode) |
| GetCurrentlyBufferedOutputCount() |
Retrieve the count of tuples currently resident in memory as part of buffering events into pages. (Inherited from PlanNode) |
| PrintConciseGeneralState(StringBuilder, Int32) |
Provides a string representation of the current node. (Inherited from PlanNode) |
| ToString() |
Provides a string representation of the current node. (Inherited from PlanNode) |