[jira] [Updated] (CASSANDRA-7600) Schema change notifications sent for no-op DDL statements

["Tyler Hobbs (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-7600?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tyler Hobbs updated CASSANDRA-7600:
-----------------------------------

    Attachment: 7600-2.1.txt
                7600-2.0.txt

Agreed, that's the best way to go.  The two patches do just that.  (Note that we're skipping 2.1.0 for this.)

[~mishail] do you want to take review on this?

> Schema change notifications sent for no-op DDL statements
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-7600
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7600
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Tyler Hobbs
>            Assignee: Tyler Hobbs
>            Priority: Minor
>             Fix For: 2.0.10, 2.1.1
>
>         Attachments: 7600-2.0.txt, 7600-2.1.txt
>
>
> When schema changes are made with {{IF \[NOT\] EXISTS}} conditions, we return schema change messages (and push out schema change notifications) even if the {{IF \[NOT\] EXISTS}} condition makes it a no-op.
> This results in extra work for native protocol drivers, which typically wait for schema agreement and refresh their schema metadata when schema changes occur.



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