org.apache.hadoop.hive.ql.optimizer.calcite.stats

Class HiveRelMdRowCount

java.lang.Object

org.apache.calcite.rel.metadata.RelMdRowCount

org.apache.hadoop.hive.ql.optimizer.calcite.stats.HiveRelMdRowCount

All Implemented Interfaces:

org.apache.calcite.rel.metadata.MetadataHandler<org.apache.calcite.rel.metadata.BuiltInMetadata.RowCount>

public class HiveRelMdRowCount
extends org.apache.calcite.rel.metadata.RelMdRowCount

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	LOG
static org.apache.calcite.rel.metadata.RelMetadataProvider	SOURCE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	HiveRelMdRowCount()

Method Summary

Modifier and Type	Method and Description
static org.apache.hadoop.hive.ql.optimizer.calcite.stats.HiveRelMdRowCount.PKFKRelationInfo	analyzeJoinForPKFK(org.apache.calcite.rel.core.Join joinRel, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
Double	getRowCount(org.apache.calcite.rel.core.Join join, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
Double	getRowCount(org.apache.calcite.rel.core.SemiJoin rel, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
Double	getRowCount(org.apache.calcite.rel.core.Sort rel, org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Methods inherited from class org.apache.calcite.rel.metadata.RelMdRowCount

getDef, getRowCount, getRowCount, getRowCount, getRowCount, getRowCount, getRowCount, getRowCount, getRowCount, getRowCount, getRowCount, getRowCount, getRowCount, getRowCount

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.slf4j.Logger LOG

SOURCE

public static final org.apache.calcite.rel.metadata.RelMetadataProvider SOURCE

Constructor Detail

HiveRelMdRowCount

protected HiveRelMdRowCount()

Method Detail

getRowCount

public Double getRowCount(org.apache.calcite.rel.core.Join join,
                          org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Overrides:

getRowCount in class org.apache.calcite.rel.metadata.RelMdRowCount

getRowCount

public Double getRowCount(org.apache.calcite.rel.core.SemiJoin rel,
                          org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Overrides:

getRowCount in class org.apache.calcite.rel.metadata.RelMdRowCount

getRowCount

public Double getRowCount(org.apache.calcite.rel.core.Sort rel,
                          org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Overrides:

getRowCount in class org.apache.calcite.rel.metadata.RelMdRowCount

analyzeJoinForPKFK

public static org.apache.hadoop.hive.ql.optimizer.calcite.stats.HiveRelMdRowCount.PKFKRelationInfo analyzeJoinForPKFK(org.apache.calcite.rel.core.Join joinRel,
                                                                                                                      org.apache.calcite.rel.metadata.RelMetadataQuery mq)