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From "Miklos Gergely (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-21346) Refactor Hive DDL
Date Wed, 27 Mar 2019 13:31:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-21346?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Miklos Gergely updated HIVE-21346:
----------------------------------
    Labels: refactor-ddl  (was: )

> Refactor Hive DDL
> -----------------
>
>                 Key: HIVE-21346
>                 URL: https://issues.apache.org/jira/browse/HIVE-21346
>             Project: Hive
>          Issue Type: Improvement
>          Components: Hive
>            Reporter: Miklos Gergely
>            Assignee: Miklos Gergely
>            Priority: Major
>              Labels: refactor-ddl
>
> Hive DDL has multiple problems:
>  * DDLTask is a huge class, needs to be cut to smaller pieces
>  * DDLSemanticAnalyzer is a huge class, needs to be cut to smaller pieces
>  * DDLWork has a bad structure by having a field for every possible DDL operation
>  * DDLDesc subclasses are put into one package which has an endless list of classes,
should be separated by subjects
>  * Many DDLDesc subclasses are not immutable



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