org.apache.flink.table.catalog.stats

Class CatalogColumnStatisticsDataBase

java.lang.Object

org.apache.flink.table.catalog.stats.CatalogColumnStatisticsDataBase

Direct Known Subclasses:

CatalogColumnStatisticsDataBinary, CatalogColumnStatisticsDataBoolean, CatalogColumnStatisticsDataDate, CatalogColumnStatisticsDataDouble, CatalogColumnStatisticsDataLong, CatalogColumnStatisticsDataString

@PublicEvolving
public abstract class CatalogColumnStatisticsDataBase
extends Object

Column statistics value base class.

Constructor Summary

Constructors

Constructor and Description
CatalogColumnStatisticsDataBase(Long nullCount)
CatalogColumnStatisticsDataBase(Long nullCount, Map<String,String> properties)

Method Summary

Modifier and Type	Method and Description
abstract CatalogColumnStatisticsDataBase	copy() Create a deep copy of "this" instance.
Long	getNullCount()
Map<String,String>	getProperties()

Methods inherited from class java.lang.Object

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

Constructor Detail

CatalogColumnStatisticsDataBase

public CatalogColumnStatisticsDataBase(Long nullCount)

CatalogColumnStatisticsDataBase

public CatalogColumnStatisticsDataBase(Long nullCount,
                                       Map<String,String> properties)

Method Detail

getNullCount

public Long getNullCount()

getProperties

public Map<String,String> getProperties()

copy

public abstract CatalogColumnStatisticsDataBase copy()

Create a deep copy of "this" instance.

Returns:

a deep copy