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Posted to dev@hive.apache.org by "Miklos Gergely (JIRA)" <ji...@apache.org> on 2019/07/04 20:14:00 UTC

[jira] [Created] (HIVE-21959) Clean up Concatenate and Msck DDL commands

Miklos Gergely created HIVE-21959:
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             Summary: Clean up Concatenate and Msck DDL commands
                 Key: HIVE-21959
                 URL: https://issues.apache.org/jira/browse/HIVE-21959
             Project: Hive
          Issue Type: Sub-task
          Components: Hive
    Affects Versions: 3.1.1
            Reporter: Miklos Gergely
            Assignee: Miklos Gergely
             Fix For: 4.0.0


Concatenate and Msck DDL use basic data structure implementations instead of their interfaces for variable declaration, like ArrayList instead of List, LinkedHashMap instead of Map, etc. This is due to a lot of similar issues in the code, which needs to be cleaned.

Concatenate also had a non-immutable Desc class, that needs to be transformed into an immutable one. Concatenate operation code should be cut into smaller functions.



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