org.apache.pig

Class PigConstants

java.lang.Object

org.apache.pig.PigConstants

@InterfaceAudience.Public
public class PigConstants
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	GENERATED_CLASSES_KEY This key is used in the job conf to let the various jobs know what code was generated.
static String	LOCAL_CODE_DIR This key is used when a job is run in local mode to pass the location of the generated code from the front-end to the "back-end" (which, in this case, is in the same JVM).
static String	PIG_EXEC_OLD_PART_FILTER_OPTIMIZER flag to use old PartitionFilterOptimizer in case NewPartitionFilterOptimizer is not backwards compatible (A known case is "filter a by 1 == 0").
static String	PIG_OPTIMIZER_RULES_DISABLED_KEY "pig.optimizer.rules.disabled" is a comma-separated list of optimizer rules to disable; by default, all rules are enabled.
static boolean	SCHEMA_TUPLE_ON_BY_DEFAULT

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

GENERATED_CLASSES_KEY

public static final String GENERATED_CLASSES_KEY

This key is used in the job conf to let the various jobs know what code was generated.

See Also:

Constant Field Values

LOCAL_CODE_DIR

public static final String LOCAL_CODE_DIR

This key is used when a job is run in local mode to pass the location of the generated code from the front-end to the "back-end" (which, in this case, is in the same JVM).

See Also:

Constant Field Values

SCHEMA_TUPLE_ON_BY_DEFAULT

public static final boolean SCHEMA_TUPLE_ON_BY_DEFAULT

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Constant Field Values

PIG_OPTIMIZER_RULES_DISABLED_KEY

public static final String PIG_OPTIMIZER_RULES_DISABLED_KEY

"pig.optimizer.rules.disabled" is a comma-separated list of optimizer rules to disable; by default, all rules are enabled.

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Constant Field Values

PIG_EXEC_OLD_PART_FILTER_OPTIMIZER

public static final String PIG_EXEC_OLD_PART_FILTER_OPTIMIZER

flag to use old PartitionFilterOptimizer in case NewPartitionFilterOptimizer is not backwards compatible (A known case is "filter a by 1 == 0").

See Also:

Constant Field Values