CommutativeRowIndexer always read full row in memory
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                 Key: CASSANDRA-2313
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2313
             Project: Cassandra
          Issue Type: Bug
    Affects Versions: 0.8
            Reporter: Sylvain Lebresne
            Assignee: Sylvain Lebresne
             Fix For: 0.8


CommutativeRowIndexer use CFSerializer.deserializeColumns() that read the full 
row in memory. We should use PreCompactedRow/LazilyCompactedRow instead to 
avoid this on huge row.

As an added benefit, using PreCompactedRow will avoid a current seek back to 
write the row size.

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