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https://issues.apache.org/jira/browse/CASSANDRA-4684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13470487#comment-13470487
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Jonathan Ellis commented on CASSANDRA-4684:
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All right, +1
> Binary protocol: inform clients of schema changes
> -------------------------------------------------
>
> Key: CASSANDRA-4684
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4684
> Project: Cassandra
> Issue Type: Improvement
> Affects Versions: 1.2.0 beta 1
> Reporter: Sylvain Lebresne
> Assignee: Sylvain Lebresne
> Priority: Minor
> Fix For: 1.2.0 beta 2
>
> Attachments: 0001-Return-schema-change-infos.txt,
> 0002-Add-migration-events.txt
>
>
> It would be nice to inform clients when a schema change occurs as this would
> allow said client to maintain the current state of the schema, which might be
> useful/desirable. To allow that, we can:
> # return that a query has changed the schema (instead of simply a 'void'
> return), in the same spirit than CASSANDRA-3707.
> # add events notification on schema change.
> Just to be clear, the goal is only to inform that a change has occured, the
> client would still have to query the system table to know the exact content
> of the change, but at least it'll know when to do such query.
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