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https://issues.apache.org/jira/browse/CASSANDRA-293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12865762#action_12865762
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Gary Dusbabek commented on CASSANDRA-293:
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jbellis> gdusbabek: for #293, i'm thinking that we don't want to allow deleting 
ranges of rows.  we have too much stuff that's row-oriented, to have a 
tombstone representing a range of rows, to fit in sanely
jbellis> allowing deleting column ranges is ugly, but more doable
gdusbabek> fuuuuuuuuuuuuu
gdusbabek> that simplifies the problem greatly though.
jbellis> sorry, i started thinking how we could implement HH when you were 
complaining about how it was a bitch
jbellis> and the more i think the more it just seems like a bad fit
gdusbabek> it really is.

> remove_key_range operation
> --------------------------
>
>                 Key: CASSANDRA-293
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-293
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Mark Robson
>            Assignee: Gary Dusbabek
>            Priority: Minor
>             Fix For: 0.7
>
>         Attachments: 0001-thrift-changes.patch, 
> 0002-add-flexibility-to-commit-log-serialization.patch, 
> 0003-remove-unused-parts-of-WriteResponse.patch, 
> 0004-RangeRemoveCommand-and-LocalRangeDeletion.patch, 0005-unit-tests.patch, 
> 0006-alter-hint-format.patch, 
> 0007-refactor-HHOM-to-handle-new-hint-format.patch
>
>
> For cleaning up old data on a rotating basis, a removal operation which 
> operates on key ranges would be very handy, currently we have to remove every 
> single column individually.

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