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Posted to issues@drill.apache.org by "Timothy Farkas (JIRA)" <ji...@apache.org> on 2018/07/27 23:03:00 UTC

[jira] [Created] (DRILL-6646) HashJoin Memory Calculator Over Reserves Memory For HashTables

Timothy Farkas created DRILL-6646:
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             Summary: HashJoin Memory Calculator Over Reserves Memory For HashTables
                 Key: DRILL-6646
                 URL: https://issues.apache.org/jira/browse/DRILL-6646
             Project: Apache Drill
          Issue Type: Improvement
            Reporter: Timothy Farkas
            Assignee: Timothy Farkas


When preparing for the probe phase it uses the worst case hashtable size even after we have constructed a hash table. In this case when we already have a hash table we should not use it's predicted worst case size, we should use its actual size in the memory calculator.



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