[jira] [Created] (PIG-3657) New partition filter extractor fails with NPE

["Cheolsoo Park (JIRA)" <ji...@apache.org>]

Cheolsoo Park created PIG-3657:
----------------------------------

             Summary: New partition filter extractor fails with NPE
                 Key: PIG-3657
                 URL: https://issues.apache.org/jira/browse/PIG-3657
             Project: Pig
          Issue Type: Bug
          Components: impl
            Reporter: Cheolsoo Park
            Assignee: Cheolsoo Park
             Fix For: 0.13.0


To reproduce the issue, try a filter expression as follows-
{code}
b = FILTER a BY partition_column < x OR (partition_column == y AND non-partition_column == z); 
{code}
Pig fails with NPE, and the stack trace is something like this-
{code}
Caused by: java.lang.NullPointerException
    at org.apache.pig.newplan.FilterExtractor.checkPushDown(FilterExtractor.java:252)
    at org.apache.pig.newplan.FilterExtractor.visit(FilterExtractor.java:115)
    at org.apache.pig.newplan.logical.rules.PartitionFilterOptimizer$PartitionFilterPushDownTransformer.transform(PartitionFilterOptimizer.java:150)
    at org.apache.pig.newplan.optimizer.PlanOptimizer.optimize(PlanOptimizer.java:110)
    ... 18 more
{code}



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