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

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Details

MetadataAggregateHelper

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

Method Details

getValueExpressions

public List<NamedExpression> getValueExpressions()