org.apache.hadoop.hive.ql.optimizer.physical
Class StageIDsRearranger

java.lang.Object
  org.apache.hadoop.hive.ql.optimizer.physical.StageIDsRearranger

All Implemented Interfaces:

PhysicalPlanResolver

public class StageIDsRearranger
extends Object
implements PhysicalPlanResolver

Simple renumbering of stage ids

Nested Class Summary

static class

StageIDsRearranger.TaskTraverse

Constructor Summary

StageIDsRearranger()

Method Summary

static List<Task>	getExplainOrder(HiveConf conf, List<Task<?>> tasks)
PhysicalContext	resolve(PhysicalContext pctx) All physical plan resolvers have to implement this entry method.

Methods inherited from class java.lang.Object

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

Constructor Detail

StageIDsRearranger

public StageIDsRearranger()

Method Detail

resolve

public PhysicalContext resolve(PhysicalContext pctx)
                        throws SemanticException

Description copied from interface: PhysicalPlanResolver

All physical plan resolvers have to implement this entry method.

Specified by:

resolve in interface PhysicalPlanResolver

Returns:

the physical plan

Throws:

SemanticException

getExplainOrder

public static List<Task> getExplainOrder(HiveConf conf,
                                         List<Task<?>> tasks)