pgaref opened a new pull request #588:
URL: https://github.com/apache/orc/pull/588


   ### What changes were proposed in this pull request?
   RecordReaderImp should pass down the writer calendar info 
(writerUsedProlepticGregorian) when evaluating predicates to make sure column 
stats are properly deserialized (affects TimestampStatistics).
   
   
   ### Why are the changes needed?
   Correct evaluation of predicates with Timestamps.
   
   
   ### How was this patch tested?
   TestRecordReaderImpl.testPredEvalTimestampStatsDiffWriter
   


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