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Posted to issues@impala.apache.org by "Vuk Ercegovac (JIRA)" <ji...@apache.org> on 2018/10/10 15:59:00 UTC

[jira] [Created] (IMPALA-7689) Improve size estimate for incremental stats

Vuk Ercegovac created IMPALA-7689:
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             Summary: Improve size estimate for incremental stats
                 Key: IMPALA-7689
                 URL: https://issues.apache.org/jira/browse/IMPALA-7689
             Project: IMPALA
          Issue Type: Improvement
          Components: Catalog
    Affects Versions: Impala 3.1.0
            Reporter: Vuk Ercegovac
            Assignee: bharath v


After compressing incremental stats, their size estimate is not too conservative. We use that size estimate to block the functionality (see the corresponding expr in analysis and serialization in catalogd), so without adjusting the estimate, the functionality will be blocked unnecessarily.



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