[jira] [Updated] (KUDU-2132) False error dropping a column if it's renamed to the old name of a primary key column in the same alter as the primary key is renamed

["Will Berkeley (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KUDU-2132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Will Berkeley updated KUDU-2132:
--------------------------------
    Affects Version/s: 1.5.0
          Code Review: https://gerrit.cloudera.org/#/c/8188/
          Description: 
We ran into the following situation in the attached randomized alter test log:

Two columns 'a' and 'b', 'a' is a primary key column. In the same alter table request,
1. Rename 'a' to 'c'
2. Rename 'b' to 'a'
3. Drop 'a'
In step 3, 'a' is not a primary key column and can be dropped; however, we err and reject the alter saying a primary key column cannot be dropped.


  was:
There's code in the test to prevent this from happening, so I'm not quite sure why it happened. I've attached the test log.


          Component/s:     (was: test)
                       master
              Summary: False error dropping a column if it's renamed to the old name of a primary key column in the same alter as the primary key is renamed  (was: alter_table-randomized-test can drop primary key columns)

> False error dropping a column if it's renamed to the old name of a primary key column in the same alter as the primary key is renamed
> -------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: KUDU-2132
>                 URL: https://issues.apache.org/jira/browse/KUDU-2132
>             Project: Kudu
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 1.5.0
>            Reporter: Adar Dembo
>            Assignee: Will Berkeley
>         Attachments: alter_table-randomized-test.txt
>
>
> We ran into the following situation in the attached randomized alter test log:
> Two columns 'a' and 'b', 'a' is a primary key column. In the same alter table request,
> 1. Rename 'a' to 'c'
> 2. Rename 'b' to 'a'
> 3. Drop 'a'
> In step 3, 'a' is not a primary key column and can be dropped; however, we err and reject the alter saying a primary key column cannot be dropped.



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