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From "Namit Jain (JIRA)" <>
Subject [jira] [Commented] (HIVE-4042) ignore mapjoin hint
Date Sat, 23 Mar 2013 04:19:16 GMT


Namit Jain commented on HIVE-4042:

I agree, it was too painful to change all the tests.
I tried, but then gave up.
The semantics of ignore mapjoin hint are also pretty simple now - always ignore
> ignore mapjoin hint
> -------------------
>                 Key: HIVE-4042
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Namit Jain
>         Attachments: hive.4042.10.patch, hive.4042.11.patch, hive.4042.12.patch, hive.4042.1.patch,
hive.4042.2.patch, hive.4042.3.patch, hive.4042.4.patch, hive.4042.5.patch, hive.4042.6.patch,
hive.4042.7.patch, hive.4042.8.patch, hive.4042.9.patch
> After HIVE-3784, in a production environment, it can become difficult to
> deploy since a lot of production queries can break.

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