Nulls are not handled in Sort Merge MapJoin
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Key: HIVE-1552
URL: https://issues.apache.org/jira/browse/HIVE-1552
Project: Hadoop Hive
Issue Type: Bug
Components: Query Processor
Reporter: Amareshwari Sriramadasu
Assignee: Amareshwari Sriramadasu
If SMBMAPJoinOperator finds null keys in Join it fails with
NullPointerException :
{noformat}
Caused by: java.lang.NullPointerException
at org.apache.hadoop.io.IntWritable.compareTo(IntWritable.java:60)
at
org.apache.hadoop.io.WritableComparator.compare(WritableComparator.java:115)
at
org.apache.hadoop.hive.ql.exec.SMBMapJoinOperator.compareKeys(SMBMapJoinOperator.java:389)
at
org.apache.hadoop.hive.ql.exec.SMBMapJoinOperator.processKey(SMBMapJoinOperator.java:438)
at
org.apache.hadoop.hive.ql.exec.SMBMapJoinOperator.processOp(SMBMapJoinOperator.java:205)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:458)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:698)
at
org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:45)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:458)
at
org.apache.hadoop.hive.ql.exec.SMBMapJoinOperator.fetchOneRow(SMBMapJoinOperator.java:479)
... 17 more
{noformat}
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