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From "Jonathan Ellis (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-5403) Clean up ColumnFamily, ISortedColumns heirarchy
Date Fri, 29 Mar 2013 16:25:16 GMT


Jonathan Ellis commented on CASSANDRA-5403:

Patchset pushed to  (To save me rebase pain,
it builds on the patches for CASSANDRA-5395, which are not yet committed, but you don't need
to re-review those.)
> Clean up ColumnFamily, ISortedColumns heirarchy
> -----------------------------------------------
>                 Key: CASSANDRA-5403
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
> CF wraps ISC but adds no real functionality of its own (post-supercolumn cleanup).
> This means that we're wasting allocations every time we create a CF/ISC pair when really
one would do.
> Other things that would be nice to clean up:
> # We often create an empty CF as a placeholder that should not be modified, and rely
on convention to avoid such modification.  We could enforce this with a new CF/ISC subclass.
> # Many places still use TMBSC where ABSC would be adequate and cheaper
> # Other places still (ModificationStatement; others?) would be fine using a column container
with no sorting requirement at all

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