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From "Prasanth J (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-5601) NPE in ORC's PPD when using select * from table with where predicate
Date Mon, 21 Oct 2013 21:27:43 GMT
Prasanth J created HIVE-5601:
--------------------------------

             Summary: NPE in ORC's PPD  when using select * from table with where predicate
                 Key: HIVE-5601
                 URL: https://issues.apache.org/jira/browse/HIVE-5601
             Project: Hive
          Issue Type: Bug
    Affects Versions: 0.12.0
            Reporter: Prasanth J
            Assignee: Prasanth J
            Priority: Critical


ORCInputFormat has a method findIncludedColumns() which returns boolean array of included
columns. In case of the following query 
{code}select * from qlog_orc where id<1000 limit 10;{code}
 where all columns are selected the findIncludedColumns() returns null. This will result in
a NPE when PPD is enabled. Following is the stack trace
{code}Caused by: java.lang.NullPointerException
	at org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl.planReadPartialDataStreams(RecordReaderImpl.java:2387)
	at org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl.readPartialDataStreams(RecordReaderImpl.java:2543)
	at org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl.readStripe(RecordReaderImpl.java:2200)
	at org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl.advanceStripe(RecordReaderImpl.java:2573)
	at org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl.advanceToNextRow(RecordReaderImpl.java:2615)
	at org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl.<init>(RecordReaderImpl.java:132)
	at org.apache.hadoop.hive.ql.io.orc.ReaderImpl.rows(ReaderImpl.java:348)
	at org.apache.hadoop.hive.ql.io.orc.OrcInputFormat$OrcRecordReader.<init>(OrcInputFormat.java:99)
	at org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.getRecordReader(OrcInputFormat.java:241)
	at org.apache.hadoop.hive.ql.io.HiveInputFormat.getRecordReader(HiveInputFormat.java:237)
	... 8 more{code}



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