org.apache.shardingsphere.infra.federation.executor.original

Class FederationTableStatistic

java.lang.Object

org.apache.shardingsphere.infra.federation.executor.original.FederationTableStatistic

All Implemented Interfaces:

org.apache.calcite.schema.Statistic

public final class FederationTableStatistic
extends Object
implements org.apache.calcite.schema.Statistic

Statistic of federation table.

Constructor Summary

Constructors

Constructor and Description
FederationTableStatistic()

Method Summary

Modifier and Type	Method and Description
List<org.apache.calcite.rel.RelCollation>	getCollations()
org.apache.calcite.rel.RelDistribution	getDistribution()
List<org.apache.calcite.util.ImmutableBitSet>	getKeys()
List<org.apache.calcite.rel.RelReferentialConstraint>	getReferentialConstraints()
Double	getRowCount()
boolean	isKey(org.apache.calcite.util.ImmutableBitSet columns)

Methods inherited from class java.lang.Object

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

Constructor Detail

FederationTableStatistic

public FederationTableStatistic()

Method Detail

getRowCount

public Double getRowCount()

Specified by:

getRowCount in interface org.apache.calcite.schema.Statistic

isKey

public boolean isKey(org.apache.calcite.util.ImmutableBitSet columns)

Specified by:

isKey in interface org.apache.calcite.schema.Statistic

getKeys

public List<org.apache.calcite.util.ImmutableBitSet> getKeys()

Specified by:

getKeys in interface org.apache.calcite.schema.Statistic

getReferentialConstraints

public List<org.apache.calcite.rel.RelReferentialConstraint> getReferentialConstraints()

Specified by:

getReferentialConstraints in interface org.apache.calcite.schema.Statistic

getCollations

public List<org.apache.calcite.rel.RelCollation> getCollations()

Specified by:

getCollations in interface org.apache.calcite.schema.Statistic

getDistribution

public org.apache.calcite.rel.RelDistribution getDistribution()

Specified by:

getDistribution in interface org.apache.calcite.schema.Statistic