Jesus Camacho Rodriguez created HIVE-10462:
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Summary: CBO (Calcite Return Path): Exception thrown in conversion
to MapJoin
Key: HIVE-10462
URL: https://issues.apache.org/jira/browse/HIVE-10462
Project: Hive
Issue Type: Sub-task
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
When the return path is on, the mapjoin conversion optimization fails as some
DS in the Join descriptor have not been initialized properly.
The failure can be reproduced with auto_join4.q. In particular, the following
Exception is thrown:
{noformat}
org.apache.hadoop.hive.ql.parse.SemanticException: Generate Map Join Task
Error: null
at
org.apache.hadoop.hive.ql.optimizer.physical.CommonJoinTaskDispatcher.processCurrentTask(CommonJoinTaskDispatcher.java:516)
at
org.apache.hadoop.hive.ql.optimizer.physical.AbstractJoinTaskDispatcher.dispatch(AbstractJoinTaskDispatcher.java:179)
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.CommonJoinResolver.resolve(CommonJoinResolver.java:79)
at
org.apache.hadoop.hive.ql.optimizer.physical.PhysicalOptimizer.optimize(PhysicalOptimizer.java:107)
at
org.apache.hadoop.hive.ql.parse.MapReduceCompiler.optimizeTaskPlan(MapReduceCompiler.java:270)
at
org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:227)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10084)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:203)
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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