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From "Remus Rusanu (JIRA)" <>
Subject [jira] [Updated] (HIVE-4850) Implement vectorized JOIN operators
Date Tue, 30 Jul 2013 11:03:50 GMT


Remus Rusanu updated HIVE-4850:

    Attachment: HIVE-4850.1.patch

This is an initial implementation of Map join. Multiple join aliases and multiple values per
key work. The small aliases are row mode data (writable objects) and get converted to vector
values *for each row in the bit table* (after filtering). Also the map hash has row mode keys
(objects) and the vector mode keys get converted to object keys for lookup of *each row in
the big table* (after filtering). 
> Implement vectorized JOIN operators
> -----------------------------------
>                 Key: HIVE-4850
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Remus Rusanu
>            Assignee: Remus Rusanu
>         Attachments: HIVE-4850.1.patch
> Easysauce

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