Package org.apache.druid.catalog.model

Class Columns

java.lang.Object

org.apache.druid.catalog.model.Columns

public class Columns
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DOUBLE
static final Map<ColumnType,String>	DRUID_TO_SQL_TYPES
static final String	FLOAT
static final String	LONG
static final String	SQL_BIGINT
static final String	SQL_BIGINT_ARRAY
static final String	SQL_DOUBLE
static final String	SQL_DOUBLE_ARRAY
static final String	SQL_FLOAT
static final String	SQL_FLOAT_ARRAY
static final String	SQL_TIMESTAMP
static final Map<String,ColumnType>	SQL_TO_DRUID_TYPES
static final String	SQL_VARCHAR
static final String	SQL_VARCHAR_ARRAY
static final String	STRING
static final String	TIME_COLUMN

Method Summary

Modifier and Type	Method	Description
static RowSignature	convertSignature(List<ColumnSpec> columns)
static ColumnType	druidType(ColumnSpec spec)
static boolean	isTimeColumn(String name)
static String	sqlType(ColumnSpec spec)
static String	sqlType(ColumnType druidType)

Methods inherited from class java.lang.Object

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

Field Details

TIME_COLUMN

public static final String TIME_COLUMN

See Also:

• Constant Field Values

STRING

public static final String STRING

LONG

public static final String LONG

FLOAT

public static final String FLOAT

DOUBLE

public static final String DOUBLE

SQL_VARCHAR

public static final String SQL_VARCHAR

See Also:

• Constant Field Values

SQL_BIGINT

public static final String SQL_BIGINT

See Also:

• Constant Field Values

SQL_FLOAT

public static final String SQL_FLOAT

See Also:

• Constant Field Values

SQL_DOUBLE

public static final String SQL_DOUBLE

See Also:

• Constant Field Values

SQL_VARCHAR_ARRAY

public static final String SQL_VARCHAR_ARRAY

See Also:

• Constant Field Values

SQL_BIGINT_ARRAY

public static final String SQL_BIGINT_ARRAY

See Also:

• Constant Field Values

SQL_FLOAT_ARRAY

public static final String SQL_FLOAT_ARRAY

See Also:

• Constant Field Values

SQL_DOUBLE_ARRAY

public static final String SQL_DOUBLE_ARRAY

See Also:

• Constant Field Values

SQL_TIMESTAMP

public static final String SQL_TIMESTAMP

See Also:

• Constant Field Values

SQL_TO_DRUID_TYPES

public static final Map<String,ColumnType> SQL_TO_DRUID_TYPES

DRUID_TO_SQL_TYPES

public static final Map<ColumnType,String> DRUID_TO_SQL_TYPES

Method Details

druidType

public static ColumnType druidType(ColumnSpec spec)

sqlType

public static String sqlType(ColumnSpec spec)

isTimeColumn

public static boolean isTimeColumn(String name)

convertSignature

public static RowSignature convertSignature(List<ColumnSpec> columns)

sqlType

public static String sqlType(ColumnType druidType)