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https://issues.apache.org/jira/browse/PIG-1073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ashutosh Chauhan updated PIG-1073:
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Attachment: (was: pig-1073.patch)
> LogicalPlanCloner can't clone plan containing LOJoin
> ----------------------------------------------------
>
> Key: PIG-1073
> URL: https://issues.apache.org/jira/browse/PIG-1073
> Project: Pig
> Issue Type: Bug
> Components: impl
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
>
> 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)
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