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Posted to dev@hive.apache.org by "Ning Zhang (JIRA)" <ji...@apache.org> on 2010/04/23 01:06:49 UTC
[jira] Commented: (HIVE-1320) NPE with lineage in a query of union
alls on joins.
[ https://issues.apache.org/jira/browse/HIVE-1320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12860062#action_12860062 ]
Ning Zhang commented on HIVE-1320:
----------------------------------
+1 will commit after tests.
> NPE with lineage in a query of union alls on joins.
> ---------------------------------------------------
>
> Key: HIVE-1320
> URL: https://issues.apache.org/jira/browse/HIVE-1320
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.6.0
> Reporter: Ashish Thusoo
> Assignee: Ashish Thusoo
> Fix For: 0.6.0
>
> Attachments: HIVE-1320.patch
>
>
> The following query generates a NPE in the lineage ctx code
> EXPLAIN
> INSERT OVERWRITE TABLE dest_l1
> SELECT j.*
> FROM (SELECT t1.key, p1.value
> FROM src1 t1
> LEFT OUTER JOIN src p1
> ON (t1.key = p1.key)
> UNION ALL
> SELECT t2.key, p2.value
> FROM src1 t2
> LEFT OUTER JOIN src p2
> ON (t2.key = p2.key)) j;
> The stack trace is:
> FAILED: Hive Internal Error: java.lang.NullPointerException(null)
> java.lang.NullPointerException
> at org.apache.hadoop.hive.ql.optimizer.lineage.LineageCtx$Index.mergeDependency(LineageCtx.java:116)
> at org.apache.hadoop.hive.ql.optimizer.lineage.OpProcFactory$UnionLineage.process(OpProcFactory.java:396)
> at org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:89)
> at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:88)
> at org.apache.hadoop.hive.ql.lib.PreOrderWalker.walk(PreOrderWalker.java:54)
> at org.apache.hadoop.hive.ql.lib.PreOrderWalker.walk(PreOrderWalker.java:59)
> at org.apache.hadoop.hive.ql.lib.PreOrderWalker.walk(PreOrderWalker.java:59)
> at org.apache.hadoop.hive.ql.lib.PreOrderWalker.walk(PreOrderWalker.java:59)
> at org.apache.hadoop.hive.ql.lib.PreOrderWalker.walk(PreOrderWalker.java:59)
> at org.apache.hadoop.hive.ql.lib.PreOrderWalker.walk(PreOrderWalker.java:59)
> at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:102)
> at org.apache.hadoop.hive.ql.optimizer.lineage.Generator.transform(Generator.java:72)
> at org.apache.hadoop.hive.ql.optimizer.Optimizer.optimize(Optimizer.java:83)
> at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:5976)
> at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:126)
> at org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer.analyzeInternal(ExplainSemanticAnalyzer.java:48)
> at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:126)
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