[jira] Commented: (CASSANDRA-334) Temporally Ordered Sub columns in a SuperColumnFamily

["Michael Koziarski (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12738606#action_12738606 ] 

Michael Koziarski commented on CASSANDRA-334:
---------------------------------------------

Makes sense to me,  LexicalUUIDType seems a bit of a mouthful though ;)



> Temporally Ordered Sub columns in a SuperColumnFamily
> -----------------------------------------------------
>
>                 Key: CASSANDRA-334
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-334
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Michael Koziarski
>         Attachments: 334.patch, cassandra-334-koz-first.diff
>
>
> Since the switch to typed column names and CompareSubcolumnsWith we no longer have a simple way to order entries in a super column / column family by their creation time.  This makes things like 'timelines' harder to implement.
> After discussions on IRC / twitter it appears we could achieve this with a new comparator for UUIDTypes which checks their temporal order before just falling back on their lexical order.

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