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https://issues.apache.org/jira/browse/HIVE-20919?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Miklos Gergely updated HIVE-20919:
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Status: Patch Available (was: Open)
> Break up UpdateDeleteSemanticAnalyzer
> -------------------------------------
>
> Key: HIVE-20919
> URL: https://issues.apache.org/jira/browse/HIVE-20919
> Project: Hive
> Issue Type: Improvement
> Components: Transactions
> Affects Versions: 3.2.0
> Reporter: Miklos Gergely
> Assignee: Miklos Gergely
> Priority: Major
> Fix For: 3.2.0
>
> Attachments: HIVE-20919.01.patch, HIVE-20919.02.patch,
> HIVE-20919.03.patch, HIVE-20919.04.patch, HIVE-20919.05.patch
>
>
> UpdateDeleteSemanticAnalyzer handles update, delete, acid export and merge
> queries by rewriting them to a different form. This is a clear violation of
> [SRP|https://en.wikipedia.org/wiki/Single_responsibility_principle], and
> therefore needs to be refactored. An abstract ancestor needs to take the
> common part, and each of the specific tasks should be handled by a separate
> class.
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