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From "Gabriel Reid (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CRUNCH-216) Transpose arguments in MapsideJoinStrategy.join
Date Tue, 18 Feb 2014 22:37:19 GMT

     [ https://issues.apache.org/jira/browse/CRUNCH-216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gabriel Reid resolved CRUNCH-216.
---------------------------------

       Resolution: Fixed
    Fix Version/s: 0.10.0
         Assignee: Gabriel Reid

Pushed to master

> Transpose arguments in MapsideJoinStrategy.join
> -----------------------------------------------
>
>                 Key: CRUNCH-216
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-216
>             Project: Crunch
>          Issue Type: Improvement
>            Reporter: Gabriel Reid
>            Assignee: Gabriel Reid
>             Fix For: 0.10.0
>
>         Attachments: CRUNCH-216.patch, CRUNCH-216b.patch
>
>
> The MapsideJoinStrategy currently specifies that the smaller table in the join (i.e.
the table to be replicated and loaded in memory) should be on the right-hand side of the join.
> This is the opposite of what is done in all other join strategies, making it impossible
to just switch out another join strategy for a MapsideJoinStrategy. The MapsideJoinStrategy
could be brought in line with the other JoinStrategies to expect the smaller of two tables
to be provided as the left-side table.



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