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Class org.apache.pig.backend.hadoop.executionengine.physicalLayer.LogToPhyTranslationVisitor

Added Methods
void updateWithEmptyBagCheck(PhysicalPlan, LogicalOperator) updates plan with check for empty bag and if bag is empty to flatten a bag with as many null's as dictated by the schema
 

Changed Methods
void visit(LOJoin) Change in signature from LOFRJoin to LOJoin.