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From "Ashutosh Chauhan (JIRA)" <>
Subject [jira] [Commented] (HIVE-3463) Add CASCADING to MySQL's InnoDB schema
Date Thu, 20 Sep 2012 15:39:08 GMT


Ashutosh Chauhan commented on HIVE-3463:

Good findings! Couple of comments:
* I wonder what about same issues for other backend dbs we support (postgres/derby/oracle).
I assume you didn't look into those, but was wondering if you have any insight for that.
* Wherever possible we should dictate the schema definitions from datanucleus ORM mapping
(which lives in package.jdo) and try to avoid directly playing with schemas of individual
db(in scripts/ dir). Obviously, if datanucleus doesn't expose feature of underlying db which
we need, we won't have a choice. 
> Add CASCADING to MySQL's InnoDB schema
> --------------------------------------
>                 Key: HIVE-3463
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>    Affects Versions: 0.9.0
>            Reporter: Alexander Alten-Lorenz
> Cascading could help to cleanup the tables when a FK is deleted.

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