[jira] [Work started] (HIVE-13780) Allow user to update AVRO table schema via command even if table's definition was defined through schema file

["Adam Szita (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-13780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HIVE-13780 started by Adam Szita.
-----------------------------------------
> Allow user to update AVRO table schema via command even if table's definition was defined through schema file
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-13780
>                 URL: https://issues.apache.org/jira/browse/HIVE-13780
>             Project: Hive
>          Issue Type: Improvement
>          Components: CLI
>    Affects Versions: 2.0.0
>            Reporter: Eric Lin
>            Assignee: Adam Szita
>            Priority: Minor
>
> If a table is defined as below:
> {code}
> CREATE TABLE test
> STORED AS AVRO 
> TBLPROPERTIES ('avro.schema.url'='/tmp/schema.json');
> {code}
> if user tries to run command:
> {code}
> ALTER TABLE test CHANGE COLUMN col1 col1 STRING COMMENT 'test comment';
> {code}
> The query will return without any warning, but has no affect to the table.
> It would be good if we can allow user to ALTER table (add/change column, update comment etc) even though the schema is defined through schema file.



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