Jesus Camacho Rodriguez created HIVE-10512:
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Summary: CBO (Calcite Return Path): SMBJoin conversion throws
ClassCastException
Key: HIVE-10512
URL: https://issues.apache.org/jira/browse/HIVE-10512
Project: Hive
Issue Type: Sub-task
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
When return path is on, SMB conversion is throwing an Exception in some cases.
The problem can be reproduced with auto_join32.q. The Exception with the
following stacktrace is thrown:
{noformat}
java.lang.ClassCastException: org.apache.hadoop.hive.ql.exec.FilterOperator
cannot be cast to org.apache.hadoop.hive.ql.exec.TableScanOperator
at
org.apache.hadoop.hive.ql.parse.TableAccessAnalyzer.genRootTableScan(TableAccessAnalyzer.java:243)
at
org.apache.hadoop.hive.ql.optimizer.AbstractBucketJoinProc.checkConvertBucketMapJoin(AbstractBucketJoinProc.java:226)
at
org.apache.hadoop.hive.ql.optimizer.AbstractSMBJoinProc.canConvertJoinToBucketMapJoin(AbstractSMBJoinProc.java:497)
at
org.apache.hadoop.hive.ql.optimizer.AbstractSMBJoinProc.canConvertJoinToSMBJoin(AbstractSMBJoinProc.java:414)
at
org.apache.hadoop.hive.ql.optimizer.SortedMergeJoinProc.process(SortedMergeJoinProc.java:45)
at
org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:90)
at
org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatchAndReturn(DefaultGraphWalker.java:95)
at
org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:79)
at
org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.walk(DefaultGraphWalker.java:133)
at
org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:110)
at
org.apache.hadoop.hive.ql.optimizer.SortedMergeBucketMapJoinOptimizer.transform(SortedMergeBucketMapJoinOptimizer.java:109)
at
org.apache.hadoop.hive.ql.optimizer.Optimizer.optimize(Optimizer.java:201)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10071)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:204)
at
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:225)
at
org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer.analyzeInternal(ExplainSemanticAnalyzer.java:74)
at
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:225)
...
{noformat}
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