ru.yandex.clickhouse.domain

Enum ClickHouseDataType

java.lang.Object

java.lang.Enum<ClickHouseDataType>

ru.yandex.clickhouse.domain.ClickHouseDataType

All Implemented Interfaces:

Serializable, Comparable<ClickHouseDataType>

public enum ClickHouseDataType
extends Enum<ClickHouseDataType>

Basic ClickHouse data types.

This list is based on the list of data type families returned by SELECT * FROM system.data_type_families

LowCardinality and Nullable are technically data types in ClickHouse, but for the sake of this driver, we treat these data types as modifiers for the underlying base data types.

Enum Constant Summary

Enum Constants

Enum Constant and Description
AggregateFunction
Array
Date
DateTime
Decimal
Decimal128
Decimal32
Decimal64
Enum16
Enum8
FixedString
Float32
Float64
Int16
Int32
Int64
Int8
IntervalDay
IntervalHour
IntervalMinute
IntervalMonth
IntervalQuarter
IntervalSecond
IntervalWeek
IntervalYear
Nested
Nothing
String
Tuple
UInt16
UInt32
UInt64
UInt8
Unknown
UUID

Method Summary

Modifier and Type	Method and Description
static ClickHouseDataType	fromTypeString(String typeString)
int	getDefaultPrecision()
int	getDefaultScale()
Class<?>	getJavaClass()
int	getSqlType()
boolean	isSigned()
static ClickHouseDataType	resolveDefaultArrayDataType(String typeName)
static ClickHouseDataType	valueOf(String name) Returns the enum constant of this type with the specified name.
static ClickHouseDataType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

IntervalYear

public static final ClickHouseDataType IntervalYear

IntervalQuarter

public static final ClickHouseDataType IntervalQuarter

IntervalMonth

public static final ClickHouseDataType IntervalMonth

IntervalWeek

public static final ClickHouseDataType IntervalWeek

IntervalDay

public static final ClickHouseDataType IntervalDay

IntervalHour

public static final ClickHouseDataType IntervalHour

IntervalMinute

public static final ClickHouseDataType IntervalMinute

IntervalSecond

public static final ClickHouseDataType IntervalSecond

UInt64

public static final ClickHouseDataType UInt64

UInt32

public static final ClickHouseDataType UInt32

UInt16

public static final ClickHouseDataType UInt16

UInt8

public static final ClickHouseDataType UInt8

Int64

public static final ClickHouseDataType Int64

Int32

public static final ClickHouseDataType Int32

Int16

public static final ClickHouseDataType Int16

Int8

public static final ClickHouseDataType Int8

Date

public static final ClickHouseDataType Date

DateTime

public static final ClickHouseDataType DateTime

Enum8

public static final ClickHouseDataType Enum8

Enum16

public static final ClickHouseDataType Enum16

Float32

public static final ClickHouseDataType Float32

Float64

public static final ClickHouseDataType Float64

Decimal32

public static final ClickHouseDataType Decimal32

Decimal64

public static final ClickHouseDataType Decimal64

Decimal128

public static final ClickHouseDataType Decimal128

Decimal

public static final ClickHouseDataType Decimal

UUID

public static final ClickHouseDataType UUID

String

public static final ClickHouseDataType String

FixedString

public static final ClickHouseDataType FixedString

Nothing

public static final ClickHouseDataType Nothing

Nested

public static final ClickHouseDataType Nested

Tuple

public static final ClickHouseDataType Tuple

Array

public static final ClickHouseDataType Array

AggregateFunction

public static final ClickHouseDataType AggregateFunction

Unknown

public static final ClickHouseDataType Unknown

Method Detail

values

public static ClickHouseDataType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ClickHouseDataType c : ClickHouseDataType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ClickHouseDataType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getSqlType

public int getSqlType()

getJavaClass

public Class<?> getJavaClass()

isSigned

public boolean isSigned()

getDefaultPrecision

public int getDefaultPrecision()

getDefaultScale

public int getDefaultScale()

fromTypeString

public static ClickHouseDataType fromTypeString(String typeString)

resolveDefaultArrayDataType

public static ClickHouseDataType resolveDefaultArrayDataType(String typeName)