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https://issues.apache.org/jira/browse/CASSANDRA-21045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sam Tunnicliffe updated CASSANDRA-21045:
----------------------------------------
    Attachment: ci_summary.html
                result_details.tar.gz

> Schema comments and security labels aren't included in schema element 
> comparisons
> ---------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-21045
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-21045
>             Project: Apache Cassandra
>          Issue Type: Bug
>          Components: Cluster/Schema
>            Reporter: Sam Tunnicliffe
>            Assignee: Sam Tunnicliffe
>            Priority: Normal
>             Fix For: 6.x
>
>         Attachments: ci_summary.html, result_details.tar.gz
>
>
> Adding and altering {{COMMENT}} and {{SECURITY LABEL}} at the keyspace, 
> column, user type or field levels don't produce any output from 
> {{Keyspaces::diff}} which determines the extent and scope of any schema 
> change. Table level comments and security labels work as expected.
> This has several effects:
>  * The new DDL statements return incorrect response messages to clients: 
> {{ResultMessage.Void}} not {{ResultMessage.SchemaChange}}
>  * No schema change notifications are triggered for these events
>  * Following CASSANDRA-21001, DDL statements which produce no effect on the 
> coordinator are not submitted to the CMS. Because the {{COMMENT ON...}} and 
> {{SECURITY LABEL ON...}} statements produce an empty {{{}KeyspacesDiff{}}}, 
> none are ever submitted to the CMS and so can never be applied.



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