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Posted to commits@cassandra.apache.org by "Sylvain Lebresne (JIRA)" <ji...@apache.org> on 2012/09/03 12:57:07 UTC
[jira] [Commented] (CASSANDRA-3237) refactor super column
implmentation to use composite column names instead
[ https://issues.apache.org/jira/browse/CASSANDRA-3237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13447211#comment-13447211 ]
Sylvain Lebresne commented on CASSANDRA-3237:
---------------------------------------------
I'm not really sure we need to really have 2 phases, and in any case I'm not convinced a startup scrub is the right approach.
I think that what we need is to write conversions functions for <CF with SC> to and from <CF with equivalent composite> and for requests on both kind of CF. With those, I think you can directly remove the use of SC internally, you just use those functions for 1) compatibility when sending/receiving to/from older nodes and 2) decode old SC format when reading old sstables. Of course that's much more easily said than done.
> refactor super column implmentation to use composite column names instead
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-3237
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3237
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Matthew F. Dennis
> Assignee: Vijay
> Priority: Minor
> Labels: ponies
> Fix For: 1.3
>
> Attachments: cassandra-supercolumn-irc.log
>
>
> super columns are annoying. composite columns offer a better API and performance. people should use composites over super columns. some people are already using super columns. C* should implement the super column API in terms of composites to reduce code, complexity and testing as well as increase performance.
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