Package org.apache.pinot.query.runtime.operator

Class MultistageGroupByExecutor

java.lang.Object

org.apache.pinot.query.runtime.operator.MultistageGroupByExecutor

public class MultistageGroupByExecutor
extends Object

Class that executes the group by aggregations for the multistage AggregateOperator.

Constructor Summary

Constructors

Constructor	Description
MultistageGroupByExecutor(List<ExpressionContext> groupByExpr, AggregationFunction[] aggFunctions, int[] filterArgIndices, AggregateNode.AggType aggType, Map<String,Integer> colNameToIndexMap, DataSchema resultSchema, Map<String,String> customProperties, AbstractPlanNode.NodeHint nodeHint)

Method Summary

Modifier and Type	Method	Description
int	getNumGroupsLimit()
List<Object[]>	getResult()	Fetches the result.
boolean	isNumGroupsLimitReached()
void	processBlock(TransferableBlock block, DataSchema inputDataSchema)	Performs group-by aggregation for the data in the block.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MultistageGroupByExecutor

public MultistageGroupByExecutor(List<ExpressionContext> groupByExpr,
                                 AggregationFunction[] aggFunctions,
                                 @Nullable
                                 int[] filterArgIndices,
                                 AggregateNode.AggType aggType,
                                 Map<String,Integer> colNameToIndexMap,
                                 DataSchema resultSchema,
                                 Map<String,String> customProperties,
                                 @Nullable
                                 AbstractPlanNode.NodeHint nodeHint)

Method Detail

getNumGroupsLimit

public int getNumGroupsLimit()

processBlock

public void processBlock(TransferableBlock block,
                         DataSchema inputDataSchema)

Performs group-by aggregation for the data in the block.

getResult

public List<Object[]> getResult()

Fetches the result.

isNumGroupsLimitReached

public boolean isNumGroupsLimitReached()