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Posted to dev@phoenix.apache.org by "Lars Hofhansl (JIRA)" <ji...@apache.org> on 2016/08/30 20:51:21 UTC

[jira] [Created] (PHOENIX-3225) Distinct Queries are slower than expected

Lars Hofhansl created PHOENIX-3225:
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             Summary: Distinct Queries are slower than expected
                 Key: PHOENIX-3225
                 URL: https://issues.apache.org/jira/browse/PHOENIX-3225
             Project: Phoenix
          Issue Type: Sub-task
            Reporter: Lars Hofhansl


In our large scale tests we found that we can easily sort 400G on a few 100 machines, but that a simple DISTINCT would just time out. Perhaps that's expected as we have to keep track of the unique values, but we should investigate.



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