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From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-20783) Factor reduction in cost by DPP when costing SJ reduction
Date Fri, 19 Oct 2018 23:33:00 GMT
Jesus Camacho Rodriguez created HIVE-20783:
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             Summary: Factor reduction in cost by DPP when costing SJ reduction
                 Key: HIVE-20783
                 URL: https://issues.apache.org/jira/browse/HIVE-20783
             Project: Hive
          Issue Type: Bug
          Components: Physical Optimizer
            Reporter: Jesus Camacho Rodriguez
            Assignee: Jesus Camacho Rodriguez


Currently, while costing the SJ in a plan, the stats of the a TS that is reduced by a SJ are
not adjusted after we have decided to keep a SJ in the tree. Ideally, we could adjust the
stats to take into account decisions that have already been made.



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