```
public class UDAFQueryOperator
extends QueryOperator
```
For a UDAFPlan, we construct an inner AggregationPlan for it. Example: select count(a)/count(b),count(a)+sum(b) from root.sg To init inner AggregationPlan, we will convert it to statement: select count(a),count(b),count(a),sum(b) from root.sg innerResultColumnsCache will be [count(a),count(b),sum(b)]

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.iotdb.db.qp.logical.Operator
  Operator.OperatorType

Field Summary
- Fields inherited from class org.apache.iotdb.db.qp.logical.crud.QueryOperator
  enableTracing, fromComponent, indexType, props, selectComponent, specialClauseComponent, whereComponent
- Fields inherited from class org.apache.iotdb.db.qp.logical.Operator
  isDebug, isPrefixMatchPath, operatorType, tokenIntType

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`check()`
`PhysicalPlan`	`generatePhysicalPlan(PhysicalGenerator generator)`
`java.util.List<ResultColumn>`	`getInnerResultColumnsCache()`

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

public UDAFQueryOperator(AggregationQueryOperator queryOperator)

public java.util.List<ResultColumn> getInnerResultColumnsCache()

public PhysicalPlan generatePhysicalPlan(PhysicalGenerator generator)
                                  throws QueryProcessException

Class UDAFQueryOperator