GroupAggregationAnalyzer (Flink : 2.0-SNAPSHOT API)

java.lang.Object
- org.apache.flink.table.planner.analyze.GroupAggregationAnalyzer

All Implemented Interfaces:

PlanAnalyzer
```
@Internal
public class GroupAggregationAnalyzer
extends Object
implements PlanAnalyzer
```
An implementation of PlanAnalyzer to analyze whether group aggregation can be optimized to local-global two_phase aggregation by tuning table configurations.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.flink.table.planner.analyze.PlanAnalyzer
  PlanAnalyzer.AnalyzedResult

Field Summary

Fields
Modifier and Type Field Description

static GroupAggregationAnalyzer INSTANCE

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Optional<PlanAnalyzer.AnalyzedResult>`	`analyze(org.apache.flink.table.planner.plan.nodes.FlinkRelNode rel)`	Analyze the optimized `RelNode` and return `PlanAnalyzer.AnalyzedResult`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - INSTANCE
```
public static final GroupAggregationAnalyzer INSTANCE
```
- Method Detail
  - analyze
```
public Optional<PlanAnalyzer.AnalyzedResult> analyze(org.apache.flink.table.planner.plan.nodes.FlinkRelNode rel)
```
    Description copied from interface: PlanAnalyzer
    
    Analyze the optimized RelNode and return PlanAnalyzer.AnalyzedResult.
    
    Specified by:
    
    analyze in interface PlanAnalyzer