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Posted to issues@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/06/01 22:48:00 UTC

[jira] [Created] (IMPALA-9813) isInvertedJoinCheaper() check may need to use # instances for mt_dop >= 1

Tim Armstrong created IMPALA-9813:
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             Summary: isInvertedJoinCheaper() check may need to use # instances for mt_dop >= 1
                 Key: IMPALA-9813
                 URL: https://issues.apache.org/jira/browse/IMPALA-9813
             Project: IMPALA
          Issue Type: Bug
          Components: Frontend
            Reporter: Tim Armstrong


This needs checking - I suspect it should be using #instances to determine whether the inversion reduces parallelism.



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