org.apache.drill.exec.physical.impl.metadata

Class MetadataAggregateHelper

java.lang.Object

org.apache.drill.exec.physical.impl.metadata.MetadataAggregateHelper

public class MetadataAggregateHelper
extends Object

Helper class for constructing aggregate value expressions required for metadata collecting.

Constructor Summary

Constructors

Constructor and Description
MetadataAggregateHelper(MetadataAggregateContext context, ColumnNamesOptions columnNamesOptions, BatchSchema schema, AggPrelBase.OperatorPhase phase)

Method Summary

Modifier and Type	Method and Description
List<NamedExpression>	getValueExpressions()

Methods inherited from class java.lang.Object

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

Constructor Detail

MetadataAggregateHelper

public MetadataAggregateHelper(MetadataAggregateContext context,
                               ColumnNamesOptions columnNamesOptions,
                               BatchSchema schema,
                               AggPrelBase.OperatorPhase phase)

Method Detail

getValueExpressions

public List<NamedExpression> getValueExpressions()