Column Pruner issues in dealing with unprunable loader
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Key: PIG-1132
URL: https://issues.apache.org/jira/browse/PIG-1132
Project: Pig
Issue Type: Bug
Affects Versions: 0.4.0
Reporter: Daniel Dai
Assignee: Daniel Dai
Fix For: 0.6.0
The following script fail:
{code}
a = load '1.txt' using BinStorage() as (a0, a1, a2);
b = foreach a generate a2, a0, a1;
c = foreach b generate a0, a2;
explain c;
{code}
Error message:
ERROR 2163: Error during fixing projections. Could not locate replacement
column for column: 1 in the new predecessor at
org.apache.pig.impl.logicalLayer.ProjectFixerUpper.visit(ProjectFixerUpper.java:262)
at org.apache.pig.impl.logicalLayer.LOProject.visit(LOProject.java:404)
at org.apache.pig.impl.logicalLayer.LOProject.visit(LOProject.java:58)
at
org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67)
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.LOForEach.rewire(LOForEach.java:770)
... 19 more
Also even we fix the exception, the result is wrong.
Thanks Thejas for finding a reproducible test case for PigLatin
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