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Posted to dev@hive.apache.org by "Szehon Ho (JIRA)" <ji...@apache.org> on 2014/11/19 08:39:33 UTC

[jira] [Created] (HIVE-8912) Enable non-staged mapjoin [Spark Branch]

Szehon Ho created HIVE-8912:
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             Summary: Enable non-staged mapjoin [Spark Branch]
                 Key: HIVE-8912
                 URL: https://issues.apache.org/jira/browse/HIVE-8912
             Project: Hive
          Issue Type: Sub-task
            Reporter: Szehon Ho


HIVE-6144 enabled non-staged mapjoin where data is read directly from small-table instead of dumping to a hashfile and reading it from there.  It is disabled on MapReduce due to some concerns of perf and security.

This JIRA is to evaluate enabling this optimization on Spark.



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