Takuya Ueshin created SPARK-1880:
------------------------------------
Summary: Eliminate unnecessary job executions.
Key: SPARK-1880
URL: https://issues.apache.org/jira/browse/SPARK-1880
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Takuya Ueshin
There are unnecessary job executions in {{BroadcastNestedLoopJoin}}.
When Innner or LeftOuter join, preparation of {{rightOuterMatches}} for
{{RightOuter}} or {{FullOuter}} join is not neccessary.
And when {{RightOuter}} or {{FullOuter}}, it should use not {{count}} and then
{{reduce}} but {{fold}}.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
