org.apache.hadoop.hive.ql.plan

Class FilterDesc

java.lang.Object

org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc

org.apache.hadoop.hive.ql.plan.FilterDesc

All Implemented Interfaces:

Serializable, Cloneable, OperatorDesc

public class FilterDesc
extends AbstractOperatorDesc

FilterDesc.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	FilterDesc.FilterOperatorExplainVectorization
static class	FilterDesc.SampleDesc sampleDesc is used to keep track of the sampling descriptor.

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc

bucketingVersion, colExprMap, memAvailable, memNeeded, opProps, opTraits, runtimeStatsTmpDir, statistics, vectorDesc, vectorMode

Constructor Summary

Constructors

Constructor and Description
FilterDesc()
FilterDesc(ExprNodeDesc predicate, boolean isSamplingPred)
FilterDesc(ExprNodeDesc predicate, boolean isSamplingPred, FilterDesc.SampleDesc sampleDescr)

Method Summary

Modifier and Type	Method and Description
Object	clone()
FilterDesc.FilterOperatorExplainVectorization	getFilterVectorization()
boolean	getIsSamplingPred()
ExprNodeDesc	getPredicate()
String	getPredicateString()
String	getSampleDescExpr()
FilterDesc.SampleDesc	getSampleDescr()
String	getUserLevelExplainPredicateString()
boolean	isGenerated() Some filters are generated or implied, which means it is not in the query.
boolean	isSame(OperatorDesc other) The default implementation delegates to Object.equals(Object).
boolean	isSortedFilter()
boolean	isSyntheticJoinPredicate()
void	setGenerated(boolean isGenerated)
void	setIsSamplingPred(boolean isSamplingPred)
void	setPredicate(ExprNodeDesc predicate)
void	setSampleDescr(FilterDesc.SampleDesc sampleDescr)
void	setSortedFilter(boolean isSortedFilter)
void	setSyntheticJoinPredicate(boolean syntheticJoinPredicate)

Methods inherited from class org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc

addComputedField, fillSignature, getBucketingVersion, getColumnExprMap, getColumnExprMapForExplain, getComputedFields, getMaxMemoryAvailable, getMemoryNeeded, getOpProps, getRuntimeStatsTmpDir, getStatistics, getTraits, getUserLevelStatistics, getVectorDesc, getVectorMode, setBucketingVersion, setColumnExprMap, setMaxMemoryAvailable, setMemoryNeeded, setOpProps, setRuntimeStatsTmpDir, setStatistics, setTraits, setVectorDesc, setVectorMode

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterDesc

public FilterDesc()

FilterDesc

public FilterDesc(ExprNodeDesc predicate,
                  boolean isSamplingPred)

FilterDesc

public FilterDesc(ExprNodeDesc predicate,
                  boolean isSamplingPred,
                  FilterDesc.SampleDesc sampleDescr)

Method Detail

getPredicateString

public String getPredicateString()

getUserLevelExplainPredicateString

public String getUserLevelExplainPredicateString()

getPredicate

public ExprNodeDesc getPredicate()

setPredicate

public void setPredicate(ExprNodeDesc predicate)

getIsSamplingPred

public boolean getIsSamplingPred()

setIsSamplingPred

public void setIsSamplingPred(boolean isSamplingPred)

getSampleDescr

public FilterDesc.SampleDesc getSampleDescr()

setSampleDescr

public void setSampleDescr(FilterDesc.SampleDesc sampleDescr)

getSampleDescExpr

public String getSampleDescExpr()

isSortedFilter

public boolean isSortedFilter()

setSortedFilter

public void setSortedFilter(boolean isSortedFilter)

isGenerated

public boolean isGenerated()

Some filters are generated or implied, which means it is not in the query. It is added by the analyzer. For example, when we do an inner join, we add filters to exclude those rows with null join key values.

setGenerated

public void setGenerated(boolean isGenerated)

isSyntheticJoinPredicate

public boolean isSyntheticJoinPredicate()

setSyntheticJoinPredicate

public void setSyntheticJoinPredicate(boolean syntheticJoinPredicate)

clone

public Object clone()

Specified by:

clone in interface OperatorDesc

Overrides:

clone in class AbstractOperatorDesc

getFilterVectorization

public FilterDesc.FilterOperatorExplainVectorization getFilterVectorization()

isSame

public boolean isSame(OperatorDesc other)

Description copied from class: AbstractOperatorDesc

The default implementation delegates to Object.equals(Object). Intended to be overridden by sub classes.

Specified by:

isSame in interface OperatorDesc

Overrides:

isSame in class AbstractOperatorDesc