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https://issues.apache.org/jira/browse/CASSANDRA-998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12867313#action_12867313
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Stu Hood commented on CASSANDRA-998:
------------------------------------
Opened the first of 3 issues to replace IColumn, SuperColumn and ColumnFamily
internally: CASSANDRA-1092.
> Replace SuperColumn and ColumnFamily structures
> -----------------------------------------------
>
> Key: CASSANDRA-998
> URL: https://issues.apache.org/jira/browse/CASSANDRA-998
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Stu Hood
> Assignee: Stu Hood
> Fix For: 0.8
>
>
> The most important concepts to come out of CASSANDRA-674 were the Slice,
> Metadata and ColumnKey structures.
> As a replacement for SuperColumns and ColumnFamilies in the current codebase,
> Slices can addtionally:
> * Represent arbitrarily nested columns
> * Allow for eventually consistent range deletes (equivalent to a CF
> containing multiple 'markedForDelete' values)
> * Be used for memory efficient compactions, since they encapsulate nesting
> and can be iterated
> * Eliminate code duplication for SuperColumn handling
> This is an umbrella ticket for the task of replacing the SuperColumn and
> ColumnFamily datastructures in the codebase, preferably with something like
> Slice.
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