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Posted to dev@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2018/04/25 14:39:00 UTC

[jira] [Created] (HIVE-19300) Skip Druid/JDBC rules in optimizer when there are no Druid/JDBC sources

Jesus Camacho Rodriguez created HIVE-19300:
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             Summary: Skip Druid/JDBC rules in optimizer when there are no Druid/JDBC sources
                 Key: HIVE-19300
                 URL: https://issues.apache.org/jira/browse/HIVE-19300
             Project: Hive
          Issue Type: Improvement
          Components: CBO, Druid integration, JDBC
    Affects Versions: 3.0.0, 3.1.0
            Reporter: Jesus Camacho Rodriguez
            Assignee: Jesus Camacho Rodriguez


When there are no Druid/JDBC sources in a plan, we can skip the complete blocks that trigger rules to push computation to Druid/JDBC, since they will have no effect on the plan, and thus avoid the overhead of traversing the plan to try to find matchings.



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