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Posted to issues@impala.apache.org by "Zoltán Borók-Nagy (Jira)" <ji...@apache.org> on 2023/11/08 14:43:00 UTC

[jira] [Created] (IMPALA-12549) Adjust estimations for small strings

Zoltán Borók-Nagy created IMPALA-12549:
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             Summary: Adjust estimations for small strings
                 Key: IMPALA-12549
                 URL: https://issues.apache.org/jira/browse/IMPALA-12549
             Project: IMPALA
          Issue Type: Sub-task
          Components: Frontend
            Reporter: Zoltán Borók-Nagy


With small strings, the queries consume less memory.

We should adjust the memory estimations / min reservations to take the small strings into account.

At first we can be conservative, i.e. only take them into account for columns with max size less than the small string limit.



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