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From "Aleksey Yeschenko (JIRA)" <>
Subject [jira] [Created] (CASSANDRA-6690) Replace EmptyColumns with updated ArrayBackedSortedColumns
Date Wed, 12 Feb 2014 01:21:23 GMT
Aleksey Yeschenko created CASSANDRA-6690:

             Summary: Replace EmptyColumns with updated ArrayBackedSortedColumns
                 Key: CASSANDRA-6690
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Aleksey Yeschenko
            Assignee: Aleksey Yeschenko
            Priority: Minor
             Fix For: 2.1

Now that UnsortedColumns is gone (CASSANDRA-6630) and TreeMapBackedSortedColumns is also gone
(CASSANDRA-6662), we can also get rid of EmptyColumns and, further, inline AbstractThreadUnsafeSortedColumns
into ABSC, leaving us with just two ColumnFamily implementations - AtomicBTreeColumns for
the memtable and ABSC for everything else.

The modified ABSC in the patch starts with the empty static array, so in terms of memory it's
about the same as EmptyColumns used to be.

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