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Posted to issues@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2019/01/09 23:16:00 UTC
[jira] [Updated] (HIVE-20919) Break up UpdateDeleteSemanticAnalyzer
[ https://issues.apache.org/jira/browse/HIVE-20919?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eugene Koifman updated HIVE-20919:
----------------------------------
Fix Version/s: (was: 3.2.0)
4.0.0
> 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: 4.0.0
>
> Attachments: HIVE-20919.01.patch, HIVE-20919.02.patch, HIVE-20919.03.patch, HIVE-20919.04.patch, HIVE-20919.05.patch, HIVE-20919.06.patch, HIVE-20919.07.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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