[PIG-1073] LogicalPlanCloner can't clone plan containing LOJoin

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: impl
• Tags: logical layer
• Assignee: Ashutosh Chauhan
• Reporter: Ashutosh Chauhan
• Created: 06/Nov/09 00:19
• Updated: 10/Nov/09 06:33

Description

Add following testcase in LogicalPlanBuilder.java

public void testLogicalPlanCloner() throws CloneNotSupportedException

{ LogicalPlan lp = buildPlan("C = join ( load 'A') by $0, (load 'B') by $0;"); LogicalPlanCloner cloner = new LogicalPlanCloner(lp); cloner.getClonedPlan(); }

and this fails with the following stacktrace:

java.lang.NullPointerException
at org.apache.pig.impl.logicalLayer.LOVisitor.visit(LOVisitor.java:171)
at org.apache.pig.impl.logicalLayer.PlanSetter.visit(PlanSetter.java:63)
at org.apache.pig.impl.logicalLayer.LOJoin.visit(LOJoin.java:213)
at org.apache.pig.impl.logicalLayer.LOJoin.visit(LOJoin.java:45)
at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67)
at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:69)
at org.apache.pig.impl.plan.DepthFirstWalker.walk(DepthFirstWalker.java:50)
at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51)
at org.apache.pig.impl.logicalLayer.LogicalPlanCloneHelper.getClonedPlan(LogicalPlanCloneHelper.java:73)
at org.apache.pig.impl.logicalLayer.LogicalPlanCloner.getClonedPlan(LogicalPlanCloner.java:46)
at org.apache.pig.test.TestLogicalPlanBuilder.testLogicalPlanCloneHelper(TestLogicalPlanBuilder.java:2110)