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Posted to dev@phoenix.apache.org by "Mujtaba Chohan (JIRA)" <ji...@apache.org> on 2015/01/27 19:18:34 UTC

[jira] [Updated] (PHOENIX-1556) Base hash join versus many-to-many decision on how many guideposts will be traversed for RHS table(s)

     [ https://issues.apache.org/jira/browse/PHOENIX-1556?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mujtaba Chohan updated PHOENIX-1556:
------------------------------------
    Fix Version/s:     (was: 3.3)

> Base hash join versus many-to-many decision on how many guideposts will be traversed for RHS table(s)
> -----------------------------------------------------------------------------------------------------
>
>                 Key: PHOENIX-1556
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1556
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: James Taylor
>            Assignee: Maryann Xue
>             Fix For: 4.3
>
>
> At compile time, we know how many guideposts (i.e. how many bytes) will be scanned for the RHS table. We should, by default, base the decision of using the hash-join verus many-to-many join on this information.



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