org.apache.hadoop.hive.common

Class AcidConstants

java.lang.Object

org.apache.hadoop.hive.common.AcidConstants

public class AcidConstants
extends Object

Common constants for ACID tables to use in HMS and HS2.

Field Summary

Fields

Modifier and Type	Field and Description
static String	BASE_PREFIX
static String	BUCKET_DIGITS
static String	DELETE_DELTA_PREFIX
static String	DELTA_DIGITS
static String	DELTA_PREFIX
static String	LEGACY_FILE_BUCKET_DIGITS
static String	STATEMENT_DIGITS 10K statements per tx.
static Pattern	VISIBILITY_PATTERN
static String	VISIBILITY_PREFIX

Constructor Summary

Constructors

Constructor and Description
AcidConstants()

Method Summary

Modifier and Type	Method and Description
static String	baseDir(long writeId)

Methods inherited from class java.lang.Object

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

Field Detail

BASE_PREFIX

public static final String BASE_PREFIX

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Constant Field Values

DELTA_PREFIX

public static final String DELTA_PREFIX

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Constant Field Values

DELETE_DELTA_PREFIX

public static final String DELETE_DELTA_PREFIX

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Constant Field Values

BUCKET_DIGITS

public static final String BUCKET_DIGITS

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Constant Field Values

LEGACY_FILE_BUCKET_DIGITS

public static final String LEGACY_FILE_BUCKET_DIGITS

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Constant Field Values

DELTA_DIGITS

public static final String DELTA_DIGITS

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Constant Field Values

STATEMENT_DIGITS

public static final String STATEMENT_DIGITS

10K statements per tx. Probably overkill ... since that many delta files would not be good for performance

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Constant Field Values

VISIBILITY_PREFIX

public static final String VISIBILITY_PREFIX

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Constant Field Values

VISIBILITY_PATTERN

public static final Pattern VISIBILITY_PATTERN

Constructor Detail

AcidConstants

public AcidConstants()

Method Detail

baseDir

public static String baseDir(long writeId)