Zoltan Matyus created HIVE-24213: ------------------------------------ Summary: Incorrect exception in the Merge MapJoinTask into its child MapRedTask optimizer Key: HIVE-24213 URL: https://issues.apache.org/jira/browse/HIVE-24213 Project: Hive Issue Type: Bug Components: Physical Optimizer Affects Versions: 4.0.0 Reporter: Zoltan Matyus Assignee: Zoltan Matyus
The {{CommonJoinTaskDispatcher#mergeMapJoinTaskIntoItsChildMapRedTask}} method throws a {{SemanticException}} if the number of {{FileSinkOperator}}s it finds is not exactly 1. The exception is valid if zero operators are found, but there can be valid use cases where multiple FileSinkOperators exist. Example: the MapJoin and it child are used in a common table expression, which is used for multiple inserts. -- This message was sent by Atlassian Jira (v8.3.4#803005)