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Posted to issues-all@impala.apache.org by "Sahil Takiar (Jira)" <ji...@apache.org> on 2020/06/14 23:40:00 UTC

[jira] [Created] (IMPALA-9856) Enable result spooling by default

Sahil Takiar created IMPALA-9856:
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             Summary: Enable result spooling by default
                 Key: IMPALA-9856
                 URL: https://issues.apache.org/jira/browse/IMPALA-9856
             Project: IMPALA
          Issue Type: Task
          Components: Backend
            Reporter: Sahil Takiar


Result spooling has been relatively stable since it was introduced, and it has several benefits described in IMPALA-8656. It would be good to enable it by default.

I looked into doing this a while ago, and there are a bunch of tests that rely on the "fetch one row batch at a time" behavior. Those tests fail when result spooling is enabled.

The remaining linked tasks in IMPALA-8656 should be completed as well before enabling result spooling by default.



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