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https://issues.apache.org/jira/browse/HIVE-19419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Work on HIVE-19419 started by Jesus Camacho Rodriguez.
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> SharedScanOptimizer may leave unnecessary operators in the plan
> ---------------------------------------------------------------
>
> Key: HIVE-19419
> URL: https://issues.apache.org/jira/browse/HIVE-19419
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer
> Affects Versions: 3.0.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
>
> Due to the interaction with branches created by semijoin reduction. In turn,
> this can lead to errors such as:
> {noformat}
> 2018-05-03T21:19:41,277 INFO [8d6a552a-b62f-44a4-bdb4-afc2e810ae56
> HiveServer2-Handler-Pool: Thread-139]: physical.Vectorizer
> (Vectorizer.java:walkStackToFindVectorizationContext(1260)) -
> walkStackToFindVectorizationContext RS has new vectorization context Context
> name GBY, level 0, sorted projectionColumnMap {0=_col0},
> scratchColumnTypeNames []
> 2018-05-03T21:19:41,278 ERROR [8d6a552a-b62f-44a4-bdb4-afc2e810ae56
> HiveServer2-Handler-Pool: Thread-139]: ql.Driver
> (SessionState.java:printError(1220)) - FAILED: SemanticException
> org.apache.hadoop.hive.ql.metadata.HiveException:
> java.lang.reflect.InvocationTargetException
> org.apache.hadoop.hive.ql.parse.SemanticException:
> org.apache.hadoop.hive.ql.metadata.HiveException:
> java.lang.reflect.InvocationTargetException
> at
> org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$VectorizationNodeProcessor.doVectorize(Vectorizer.java:1285)
> at
> org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$MapWorkVectorizationNodeProcessor.process(Vectorizer.java:1346)
> at
> org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:90)
> at
> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatchAndReturn(DefaultGraphWalker.java:105)
> at
> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:89)
> at
> org.apache.hadoop.hive.ql.lib.PreOrderOnceWalker.walk(PreOrderOnceWalker.java:43)
> at
> org.apache.hadoop.hive.ql.lib.PreOrderOnceWalker.walk(PreOrderOnceWalker.java:54)
> at
> org.apache.hadoop.hive.ql.lib.PreOrderOnceWalker.walk(PreOrderOnceWalker.java:54)
> at
> org.apache.hadoop.hive.ql.lib.PreOrderOnceWalker.walk(PreOrderOnceWalker.java:54)
> at
> org.apache.hadoop.hive.ql.lib.PreOrderOnceWalker.walk(PreOrderOnceWalker.java:54)
> at
> org.apache.hadoop.hive.ql.lib.PreOrderOnceWalker.walk(PreOrderOnceWalker.java:54)
> at
> org.apache.hadoop.hive.ql.lib.PreOrderOnceWalker.walk(PreOrderOnceWalker.java:54)
> at
> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:120)
> at
> org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$VectorizationDispatcher.vectorizeMapWork(Vectorizer.java:955)
> at
> org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$VectorizationDispatcher.convertMapWork(Vectorizer.java:514)
> at
> org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer$VectorizationDispatcher.dispatch(Vectorizer.java:485)
> at
> org.apache.hadoop.hive.ql.lib.TaskGraphWalker.dispatch(TaskGraphWalker.java:111)
> at
> org.apache.hadoop.hive.ql.lib.TaskGraphWalker.walk(TaskGraphWalker.java:180)
> at
> org.apache.hadoop.hive.ql.lib.TaskGraphWalker.startWalking(TaskGraphWalker.java:125)
> at
> org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer.resolve(Vectorizer.java:1495)
> at
> org.apache.hadoop.hive.ql.parse.TezCompiler.optimizeTaskPlan(TezCompiler.java:644)
> {noformat}
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