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https://issues.apache.org/jira/browse/CASSANDRA-185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12733378#action_12733378
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Sandeep Tata edited comment on CASSANDRA-185 at 7/20/09 3:18 PM:
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Ah .. just noticed the happy side-effect that EfficientBidiMap is now replaced 
by a single ConcurrentSkipListMap (See CASSANDRA-51 for context)

      was (Author: sandeep_tata):
    Ah .. just noticed the happy side-effect that EfficientBidiMap is now 
replaced by a single ConcurrentSkipListMap ...
  
> user-defined column ordering
> ----------------------------
>
>                 Key: CASSANDRA-185
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-185
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>         Attachments: 
> 0001-CASSANDRA-185-introduce-column-compatibility-layer-t.txt, 
> 0002-r-m-time-sorted-columns.txt, 
> 0003-change-String-column-names-to-byte-to-allow-user-def.txt, 
> 0004-r-m-tests-that-won-t-pass-until-we-do-303.txt
>
>
> name ordering by ascii String order isn't general enough.
> we need to allow specifying a comparator class like we do (indirectly) for 
> key ordering via the partitioner interface.
> per-CF would be best.

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