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Posted to issues@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2018/11/06 00:06:00 UTC

[jira] [Created] (IMPALA-7813) Non-deterministic partition expression may be redundantly evaluated

Tim Armstrong created IMPALA-7813:
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             Summary: Non-deterministic partition expression may be redundantly evaluated
                 Key: IMPALA-7813
                 URL: https://issues.apache.org/jira/browse/IMPALA-7813
             Project: IMPALA
          Issue Type: Bug
          Components: Frontend
    Affects Versions: Impala 3.0, Impala 2.11.0
            Reporter: Tim Armstrong


Following on from IMPALA-402, I believe there is another issue where the partition value evaluated in the exchange, the sort and the table sink may all turn out to be different values. This would break various clustering optimisations and result in small files.



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