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From "Mikhail Stepura (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7600) Schema change notifications sent for no-op DDL statements
Date Thu, 21 Aug 2014 18:15:12 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14105705#comment-14105705
] 

Mikhail Stepura commented on CASSANDRA-7600:
--------------------------------------------

LGTM, +1

> 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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