org.apache.flink.table.catalog.stats

类 CatalogColumnStatisticsDataString

java.lang.Object

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

org.apache.flink.table.catalog.stats.CatalogColumnStatisticsDataString

public class CatalogColumnStatisticsDataString
extends CatalogColumnStatisticsDataBase

Column statistics value of string type.

构造器概要

构造器

构造器和说明
CatalogColumnStatisticsDataString(Long maxLength, Double avgLength, Long ndv, Long nullCount)
CatalogColumnStatisticsDataString(Long maxLength, Double avgLength, Long ndv, Long nullCount, Map<String,String> properties)

方法概要

限定符和类型	方法和说明
CatalogColumnStatisticsDataString	copy() Create a deep copy of "this" instance.
Double	getAvgLength()
Long	getMaxLength()
Long	getNdv()

从类继承的方法 org.apache.flink.table.catalog.stats.CatalogColumnStatisticsDataBase

getNullCount, getProperties

从类继承的方法 java.lang.Object

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

构造器详细资料

CatalogColumnStatisticsDataString

public CatalogColumnStatisticsDataString(Long maxLength,
                                         Double avgLength,
                                         Long ndv,
                                         Long nullCount)

CatalogColumnStatisticsDataString

public CatalogColumnStatisticsDataString(Long maxLength,
                                         Double avgLength,
                                         Long ndv,
                                         Long nullCount,
                                         Map<String,String> properties)

方法详细资料

getMaxLength

public Long getMaxLength()

getAvgLength

public Double getAvgLength()

getNdv

public Long getNdv()

copy

public CatalogColumnStatisticsDataString copy()

从类复制的说明: CatalogColumnStatisticsDataBase

Create a deep copy of "this" instance.

指定者:

copy 在类中 CatalogColumnStatisticsDataBase

返回:

a deep copy