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

Class HiveRelMdSize

java.lang.Object

org.apache.calcite.rel.metadata.RelMdSize

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

All Implemented Interfaces:

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

public class HiveRelMdSize
extends org.apache.calcite.rel.metadata.RelMdSize

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.calcite.rel.metadata.RelMetadataProvider	SOURCE

Fields inherited from class org.apache.calcite.rel.metadata.RelMdSize

BYTES_PER_CHARACTER

Method Summary

Modifier and Type	Method and Description
List<Double>	averageColumnSizes(HiveJoin rel, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
List<Double>	averageColumnSizes(HiveTableScan scan, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
List<Double>	averageColumnSizes(org.apache.calcite.rel.core.SemiJoin rel, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
Double	averageTypeValueSize(org.apache.calcite.rel.type.RelDataType type)

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

averageColumnSizes, averageColumnSizes, averageColumnSizes, averageColumnSizes, averageColumnSizes, averageColumnSizes, averageColumnSizes, averageColumnSizes, averageColumnSizes, averageColumnSizes, averageColumnSizes, averageColumnSizes, averageFieldValueSize, averageRexSize, averageRowSize, getDef, typeValueSize

Methods inherited from class java.lang.Object

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

Field Detail

SOURCE

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

Method Detail

averageColumnSizes

public List<Double> averageColumnSizes(HiveTableScan scan,
                                       org.apache.calcite.rel.metadata.RelMetadataQuery mq)

averageColumnSizes

public List<Double> averageColumnSizes(org.apache.calcite.rel.core.SemiJoin rel,
                                       org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Overrides:

averageColumnSizes in class org.apache.calcite.rel.metadata.RelMdSize

averageColumnSizes

public List<Double> averageColumnSizes(HiveJoin rel,
                                       org.apache.calcite.rel.metadata.RelMetadataQuery mq)

averageTypeValueSize

public Double averageTypeValueSize(org.apache.calcite.rel.type.RelDataType type)

Overrides:

averageTypeValueSize in class org.apache.calcite.rel.metadata.RelMdSize