[jira] [Commented] (AMBARI-21549) Ambari upgrade should update unique constraints

["Dmitry Lysnichenko (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-21549?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16125572#comment-16125572 ] 

Dmitry Lysnichenko commented on AMBARI-21549:
---------------------------------------------

Committed to 2.6 branch
To https://git-wip-us.apache.org/repos/asf/ambari.git
   7ab5876124..9fe2b6788e  branch-2.6 -> branch-2.6

> Ambari upgrade should update unique constraints
> -----------------------------------------------
>
>                 Key: AMBARI-21549
>                 URL: https://issues.apache.org/jira/browse/AMBARI-21549
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.5.0
>            Reporter: Dmitry Lysnichenko
>            Assignee: Dmitry Lysnichenko
>             Fix For: 2.6.0
>
>         Attachments: AMBARI-21549.patch
>
>
> When upgrading Ambari from 2.2.2 to 2.5 it was discovered that if a unique constraint is modified between Ambari versions, then we do not update the unique constraint.
> For example:
> *Ambari 2.2.2*
> https://github.com/apache/ambari/blob/branch-2.2.2/ambari-server/src/main/resources/Ambari-DDL-MySQL-CREATE.sql#L661
> {code}
> ALTER TABLE users ADD CONSTRAINT UNQ_users_0 UNIQUE (user_name, ldap_user);
> {code}
> *Ambari-2.4.0*
> https://github.com/apache/ambari/blob/branch-2.4/ambari-server/src/main/resources/Ambari-DDL-Postgres-CREATE.sql#L288
> {code}
> CONSTRAINT UNQ_users_0 UNIQUE (user_name, user_type))
> {code}
> Whenever after upgrading from Ambari 2.2.2 to Ambari 2.5.0, the unique constraint is not updated.



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