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From "Vikram Dixit K (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-10273) Union with partition tables which have no data fails with NPE
Date Thu, 09 Apr 2015 18:20:13 GMT

     [ https://issues.apache.org/jira/browse/HIVE-10273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vikram Dixit K updated HIVE-10273:
----------------------------------
    Description: 
As shown in the test case in the patch below, when we have partitioned tables which have no
data, we fail with an NPE with the following stack trace:

{code}
NullPointerException null
java.lang.NullPointerException
  at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.walk(DefaultGraphWalker.java:128)
  at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:109)
  at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$VectorizationDispatcher.validateMapWork(Vectorizer.java:357)
  at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$VectorizationDispatcher.convertMapWork(Vectorizer.java:321)
  at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$VectorizationDispatcher.dispatch(Vectorizer.java:307)
  at org.apache.hadoop.hive.ql.lib.TaskGraphWalker.dispatch(TaskGraphWalker.java:111)
  at org.apache.hadoop.hive.ql.lib.TaskGraphWalker.walk(TaskGraphWalker.java:194)
  at org.apache.hadoop.hive.ql.lib.TaskGraphWalker.startWalking(TaskGraphWalker.java:139)
  at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer.resolve(Vectorizer.java:847)
  at org.apache.hadoop.hive.ql.parse.TezCompiler.optimizeTaskPlan(TezCompiler.java:468)
  at org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:223)
  at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10170)
  at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:221)
  at org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer.analyzeInternal(ExplainSemanticAnalyzer.java:74)
  at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:221)
{code}

> Union with partition tables which have no data fails with NPE
> -------------------------------------------------------------
>
>                 Key: HIVE-10273
>                 URL: https://issues.apache.org/jira/browse/HIVE-10273
>             Project: Hive
>          Issue Type: Bug
>          Components: Tez
>    Affects Versions: 1.2.0
>            Reporter: Vikram Dixit K
>            Assignee: Vikram Dixit K
>         Attachments: HIVE-10273.1.patch
>
>
> As shown in the test case in the patch below, when we have partitioned tables which have
no data, we fail with an NPE with the following stack trace:
> {code}
> NullPointerException null
> java.lang.NullPointerException
>   at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.walk(DefaultGraphWalker.java:128)
>   at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:109)
>   at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$VectorizationDispatcher.validateMapWork(Vectorizer.java:357)
>   at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$VectorizationDispatcher.convertMapWork(Vectorizer.java:321)
>   at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$VectorizationDispatcher.dispatch(Vectorizer.java:307)
>   at org.apache.hadoop.hive.ql.lib.TaskGraphWalker.dispatch(TaskGraphWalker.java:111)
>   at org.apache.hadoop.hive.ql.lib.TaskGraphWalker.walk(TaskGraphWalker.java:194)
>   at org.apache.hadoop.hive.ql.lib.TaskGraphWalker.startWalking(TaskGraphWalker.java:139)
>   at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer.resolve(Vectorizer.java:847)
>   at org.apache.hadoop.hive.ql.parse.TezCompiler.optimizeTaskPlan(TezCompiler.java:468)
>   at org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:223)
>   at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10170)
>   at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:221)
>   at org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer.analyzeInternal(ExplainSemanticAnalyzer.java:74)
>   at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:221)
> {code}



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