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Posted to dev@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2015/06/30 22:40:05 UTC

[jira] [Created] (HIVE-11152) Swapping join inputs in ASTConverter

Jesus Camacho Rodriguez created HIVE-11152:
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             Summary: Swapping join inputs in ASTConverter
                 Key: HIVE-11152
                 URL: https://issues.apache.org/jira/browse/HIVE-11152
             Project: Hive
          Issue Type: Bug
          Components: CBO
            Reporter: Jesus Camacho Rodriguez
            Assignee: Jesus Camacho Rodriguez


We want that multijoin optimization in SemanticAnalyzer always kicks in when CBO is enabled (if possible). For that, we may need to swap the join inputs when we return from CBO through the Hive AST.



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