org.apache.hadoop.hive.ql.exec.vector.ptf

Class VectorPTFEvaluatorLag

java.lang.Object

org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorBase

org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorAbstractLeadLag

org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorLag

public class VectorPTFEvaluatorLag
extends VectorPTFEvaluatorAbstractLeadLag

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorAbstractLeadLag

amt, defaultValue, defaultValueColumn, type

Fields inherited from class org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorBase

inputColumnNum, LOG, outputColumnNum

Constructor Summary

Constructors

Constructor and Description
VectorPTFEvaluatorLag(WindowFrameDef windowFrameDef, VectorExpression inputVecExpr, int outputColumnNum, ColumnVector.Type type, int amt, VectorExpression defaultValueExpression)

Method Summary

Modifier and Type	Method and Description
Object	runOnRange(int rowNum, Range range, VectorPTFGroupBatches batches)

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorAbstractLeadLag

canRunOptimizedCalculation, evaluateGroupBatch, getDefaultValue, getResultColumnVectorType, isCacheableForRange, mapCustomColumns, resetEvaluator, streamsResult

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorBase

doLastBatchWork, evaluateInputExpr, getGroupResult, getNullsLast, getOutputColumnNum, isGroupResultNull, onPartitionEnd, onResultCalculated, setNullsLast

Methods inherited from class java.lang.Object

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

Constructor Detail

VectorPTFEvaluatorLag

public VectorPTFEvaluatorLag(WindowFrameDef windowFrameDef,
                             VectorExpression inputVecExpr,
                             int outputColumnNum,
                             ColumnVector.Type type,
                             int amt,
                             VectorExpression defaultValueExpression)

Method Detail

runOnRange

public Object runOnRange(int rowNum,
                         Range range,
                         VectorPTFGroupBatches batches)
                  throws HiveException

Overrides:

runOnRange in class VectorPTFEvaluatorBase

Throws:

HiveException