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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Created: (CASSANDRA-48) test-and-set
Date Thu, 02 Apr 2009 22:55:14 GMT
test-and-set
------------

                 Key: CASSANDRA-48
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-48
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Jonathan Ellis


Atomic test-and-set insert operation would be nice: "set value to X but only if the current
value is still Y."  This allows a sort of optimistic consistency: perform a GET, then perform
test-and-set with the value of that GET as Y.

I do not think that this requires strong consistency to be useful.

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