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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-6690) Replace EmptyColumns with updated ArrayBackedSortedColumns
Date Wed, 12 Feb 2014 01:23:20 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-6690?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aleksey Yeschenko updated CASSANDRA-6690:
-----------------------------------------

    Attachment: 6690.txt

> Replace EmptyColumns with updated ArrayBackedSortedColumns
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-6690
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6690
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Aleksey Yeschenko
>            Assignee: Aleksey Yeschenko
>            Priority: Minor
>             Fix For: 2.1
>
>         Attachments: 6690.txt
>
>
> 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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