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https://issues.apache.org/jira/browse/CASSANDRA-19749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Miklosovic updated CASSANDRA-19749:
------------------------------------------
    Status: Needs Committer  (was: Patch Available)

> ALTER USER | ROLE IF EXISTS creates a user / role if it does not exist
> ----------------------------------------------------------------------
>
>                 Key: CASSANDRA-19749
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-19749
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Legacy/CQL
>            Reporter: Stefan Miklosovic
>            Assignee: Stefan Miklosovic
>            Priority: Normal
>             Fix For: 4.1.x, 5.0.x, 5.x
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Let's have:
> {code}
> authenticator:
>   class_name : org.apache.cassandra.auth.PasswordAuthenticator
> authorizer: CassandraAuthorizer
> role_manager: CassandraRoleManager
> {code}
> and do this:
> {code}
> cassandra@cqlsh> select * from system_auth.roles;
>  role      | can_login | is_superuser | member_of | salted_hash
> -----------+-----------+--------------+-----------+--------------------------------------------------------------
>  cassandra |      True |         True |      null | 
> $2a$10$sFCKeluid5MlW/Z0CU1ygO1U5qpLW4Rgivmu8rZNmNNQ8WeC2y92S
> {code}
> Then 
> {code}
> cassandra@cqlsh> ALTER USER IF EXISTS this_does_not_exist SUPERUSER ;
> cassandra@cqlsh> select * from system_auth.roles where role = 
> 'this_does_not_exist';
>  role                | can_login | is_superuser | member_of | salted_hash
> ---------------------+-----------+--------------+-----------+-------------
>  this_does_not_exist |      null |         True |      null |        null
> {code}
> It seems to be same behaviour for ALTER ROLE too.
> {code}
> cassandra@cqlsh> ALTER ROLE IF EXISTS this_role_is_not_there WITH SUPERUSER = 
> true ;
> cassandra@cqlsh> select * from system_auth.roles where role = 
> 'this_role_is_not_there';
>  role                   | can_login | is_superuser | member_of | salted_hash
> ------------------------+-----------+--------------+-----------+-------------
>  this_role_is_not_there |      null |         True |      null |        null
> {code}



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