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https://issues.apache.org/jira/browse/HIVE-21346?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Miklos Gergely reassigned HIVE-21346:
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> 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
>
> Hive DDL has multiple problems:
> * DDLTask is a huge class, needs to be cut to smaller piecese
> * 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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