org.apache.flink.table.catalog.stats

类 CatalogColumnStatistics

java.lang.Object

org.apache.flink.table.catalog.stats.CatalogColumnStatistics

public class CatalogColumnStatistics
extends Object

Column statistics of a table or partition.

字段概要

字段

限定符和类型	字段和说明
static CatalogColumnStatistics	UNKNOWN

构造器概要

构造器

构造器和说明
CatalogColumnStatistics(Map<String,CatalogColumnStatisticsDataBase> columnStatisticsData)
CatalogColumnStatistics(Map<String,CatalogColumnStatisticsDataBase> columnStatisticsData, Map<String,String> properties)

方法概要

限定符和类型	方法和说明
CatalogColumnStatistics	copy() Create a deep copy of "this" instance.
Map<String,CatalogColumnStatisticsDataBase>	getColumnStatisticsData()
Map<String,String>	getProperties()

从类继承的方法 java.lang.Object

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

字段详细资料

UNKNOWN

public static final CatalogColumnStatistics UNKNOWN

构造器详细资料

CatalogColumnStatistics

public CatalogColumnStatistics(Map<String,CatalogColumnStatisticsDataBase> columnStatisticsData)

CatalogColumnStatistics

public CatalogColumnStatistics(Map<String,CatalogColumnStatisticsDataBase> columnStatisticsData,
                               Map<String,String> properties)

方法详细资料

getColumnStatisticsData

public Map<String,CatalogColumnStatisticsDataBase> getColumnStatisticsData()

getProperties

public Map<String,String> getProperties()

copy

public CatalogColumnStatistics copy()

Create a deep copy of "this" instance.

返回:

a deep copy