io.prestosql.plugin.hive

Class HiveColumnHandle

java.lang.Object

io.prestosql.plugin.hive.HiveColumnHandle

All Implemented Interfaces:

ColumnHandle

public class HiveColumnHandle
extends Object
implements ColumnHandle

ColumnHandle for Hive Connector representing a full top level column or a projected column. Currently projected columns that represent a simple chain of dereferences are supported. e.g. for a column "A" with type struct(B struct(C bigint, ...), ....) there can be a projected column representing expression "A.B.C".

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HiveColumnHandle.ColumnType

Field Summary

Fields

Modifier and Type	Field and Description
static int	BUCKET_COLUMN_INDEX
static String	BUCKET_COLUMN_NAME
static HiveType	BUCKET_HIVE_TYPE
static Type	BUCKET_TYPE_SIGNATURE
static int	FILE_MODIFIED_TIME_COLUMN_INDEX
static String	FILE_MODIFIED_TIME_COLUMN_NAME
static HiveType	FILE_MODIFIED_TIME_TYPE
static Type	FILE_MODIFIED_TIME_TYPE_SIGNATURE
static int	FILE_SIZE_COLUMN_INDEX
static String	FILE_SIZE_COLUMN_NAME
static HiveType	FILE_SIZE_TYPE
static Type	FILE_SIZE_TYPE_SIGNATURE
static int	PATH_COLUMN_INDEX
static String	PATH_COLUMN_NAME
static HiveType	PATH_HIVE_TYPE
static Type	PATH_TYPE

Constructor Summary

Constructors

Constructor and Description
HiveColumnHandle(String baseColumnName, int baseHiveColumnIndex, HiveType baseHiveType, Type baseType, Optional<HiveColumnProjectionInfo> hiveColumnProjectionInfo, HiveColumnHandle.ColumnType columnType, Optional<String> comment)

Method Summary

Modifier and Type	Method and Description
static HiveColumnHandle	bucketColumnHandle() The column indicating the bucket id.
static HiveColumnHandle	createBaseColumn(String topLevelColumnName, int topLevelColumnIndex, HiveType hiveType, Type type, HiveColumnHandle.ColumnType columnType, Optional<String> comment)
boolean	equals(Object obj)
static HiveColumnHandle	fileModifiedTimeColumnHandle()
static HiveColumnHandle	fileSizeColumnHandle()
HiveColumnHandle	getBaseColumn()
String	getBaseColumnName()
int	getBaseHiveColumnIndex()
HiveType	getBaseHiveType()
Type	getBaseType()
ColumnMetadata	getColumnMetadata()
HiveColumnHandle.ColumnType	getColumnType()
Optional<String>	getComment()
Optional<HiveColumnProjectionInfo>	getHiveColumnProjectionInfo()
HiveType	getHiveType()
String	getName()
Type	getType()
int	hashCode()
boolean	isBaseColumn()
static boolean	isBucketColumnHandle(HiveColumnHandle column)
static boolean	isFileModifiedTimeColumnHandle(HiveColumnHandle column)
static boolean	isFileSizeColumnHandle(HiveColumnHandle column)
boolean	isHidden()
boolean	isPartitionKey()
static boolean	isPathColumnHandle(HiveColumnHandle column)
static HiveColumnHandle	pathColumnHandle()
String	toString()
static HiveColumnHandle	updateRowIdHandle()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

PATH_COLUMN_INDEX

public static final int PATH_COLUMN_INDEX

See Also:

Constant Field Values

PATH_COLUMN_NAME

public static final String PATH_COLUMN_NAME

See Also:

Constant Field Values

PATH_HIVE_TYPE

public static final HiveType PATH_HIVE_TYPE

PATH_TYPE

public static final Type PATH_TYPE

BUCKET_COLUMN_INDEX

public static final int BUCKET_COLUMN_INDEX

See Also:

Constant Field Values

BUCKET_COLUMN_NAME

public static final String BUCKET_COLUMN_NAME

See Also:

Constant Field Values

BUCKET_HIVE_TYPE

public static final HiveType BUCKET_HIVE_TYPE

BUCKET_TYPE_SIGNATURE

public static final Type BUCKET_TYPE_SIGNATURE

FILE_SIZE_COLUMN_INDEX

public static final int FILE_SIZE_COLUMN_INDEX

See Also:

Constant Field Values

FILE_SIZE_COLUMN_NAME

public static final String FILE_SIZE_COLUMN_NAME

See Also:

Constant Field Values

FILE_SIZE_TYPE

public static final HiveType FILE_SIZE_TYPE

FILE_SIZE_TYPE_SIGNATURE

public static final Type FILE_SIZE_TYPE_SIGNATURE

FILE_MODIFIED_TIME_COLUMN_INDEX

public static final int FILE_MODIFIED_TIME_COLUMN_INDEX

See Also:

Constant Field Values

FILE_MODIFIED_TIME_COLUMN_NAME

public static final String FILE_MODIFIED_TIME_COLUMN_NAME

See Also:

Constant Field Values

FILE_MODIFIED_TIME_TYPE

public static final HiveType FILE_MODIFIED_TIME_TYPE

FILE_MODIFIED_TIME_TYPE_SIGNATURE

public static final Type FILE_MODIFIED_TIME_TYPE_SIGNATURE

Constructor Detail

HiveColumnHandle

public HiveColumnHandle(String baseColumnName,
                        int baseHiveColumnIndex,
                        HiveType baseHiveType,
                        Type baseType,
                        Optional<HiveColumnProjectionInfo> hiveColumnProjectionInfo,
                        HiveColumnHandle.ColumnType columnType,
                        Optional<String> comment)

Method Detail

createBaseColumn

public static HiveColumnHandle createBaseColumn(String topLevelColumnName,
                                                int topLevelColumnIndex,
                                                HiveType hiveType,
                                                Type type,
                                                HiveColumnHandle.ColumnType columnType,
                                                Optional<String> comment)

getBaseColumn

public HiveColumnHandle getBaseColumn()

getName

public String getName()

getBaseColumnName

public String getBaseColumnName()

getBaseHiveType

public HiveType getBaseHiveType()

getBaseType

public Type getBaseType()

getBaseHiveColumnIndex

public int getBaseHiveColumnIndex()

getHiveColumnProjectionInfo

public Optional<HiveColumnProjectionInfo> getHiveColumnProjectionInfo()

getHiveType

public HiveType getHiveType()

getType

public Type getType()

isPartitionKey

public boolean isPartitionKey()

isHidden

public boolean isHidden()

getColumnMetadata

public ColumnMetadata getColumnMetadata()

getComment

public Optional<String> getComment()

getColumnType

public HiveColumnHandle.ColumnType getColumnType()

isBaseColumn

public boolean isBaseColumn()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

updateRowIdHandle

public static HiveColumnHandle updateRowIdHandle()

pathColumnHandle

public static HiveColumnHandle pathColumnHandle()

bucketColumnHandle

public static HiveColumnHandle bucketColumnHandle()

The column indicating the bucket id. When table bucketing differs from partition bucketing, this column indicates what bucket the row will fall in under the table bucketing scheme.

fileSizeColumnHandle

public static HiveColumnHandle fileSizeColumnHandle()

fileModifiedTimeColumnHandle

public static HiveColumnHandle fileModifiedTimeColumnHandle()

isPathColumnHandle

public static boolean isPathColumnHandle(HiveColumnHandle column)

isBucketColumnHandle

public static boolean isBucketColumnHandle(HiveColumnHandle column)

isFileSizeColumnHandle

public static boolean isFileSizeColumnHandle(HiveColumnHandle column)

isFileModifiedTimeColumnHandle

public static boolean isFileModifiedTimeColumnHandle(HiveColumnHandle column)