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Posted to dev@hive.apache.org by "Namit Jain (Created) (JIRA)" <ji...@apache.org> on 2011/12/21 18:29:30 UTC

[jira] [Created] (HIVE-2669) remove special processing for map-join

remove special processing for map-join
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                 Key: HIVE-2669
                 URL: https://issues.apache.org/jira/browse/HIVE-2669
             Project: Hive
          Issue Type: Improvement
            Reporter: Namit Jain


With hive.auto.convert.join, there is no need for the user to specify map-join hint.

It should be completely ignored, other than for bucketized join which can be cleaned later.
There is a lot of code in the optimizer for processing union followed by map-join etc. which should
be gotten rid of.

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