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https://issues.apache.org/jira/browse/CASSANDRA-16048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17216958#comment-17216958
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Jordan West edited comment on CASSANDRA-16048 at 10/19/20, 6:53 PM:
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Thanks [~marcuse]. Addressed all comments and added the flag. My concern was
what it meant to opt-in then opt-out but I think its minimal in reality. I
wanted to make it a static startup flag but that was a pain for testing so its
checked on each call. This should be fine since its called at startup only.
was (Author: jrwest):
Thanks [~marcuse]. Addressed all comments and added the flag. My concern was
what it meant to opt-in then opt-out but I think its minimal in reality. I made
it a start-up flag since changing it at runtime wouldn't have meaning.
> Safely Ignore Compact Storage Tables Where Users Have Defined Clustering and
> Value Columns
> ------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-16048
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16048
> Project: Cassandra
> Issue Type: Improvement
> Components: Legacy/CQL
> Reporter: Jordan West
> Assignee: Jordan West
> Priority: Normal
> Fix For: 4.0-beta
>
>
> Some compact storage tables, specifically those where the user has defined
> both at least one clustering and the value column, can be safely handled in
> 4.0 because besides the DENSE flag they are not materially different post 3.0
> and there is no visible change to the user facing schema after dropping
> compact storage. We can detect this case and allow these tables to silently
> drop the DENSE flag while still throwing a start-up error for COMPACT STORAGE
> tables that don’t meet the criteria.
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