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From "Igor Seliverstov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-10576) MVCC TX: Rework UpdateSourceIterator to mix operation types
Date Thu, 06 Dec 2018 14:14:00 GMT
Igor Seliverstov created IGNITE-10576:
-----------------------------------------

             Summary: MVCC TX: Rework UpdateSourceIterator to mix operation types
                 Key: IGNITE-10576
                 URL: https://issues.apache.org/jira/browse/IGNITE-10576
             Project: Ignite
          Issue Type: Bug
          Components: mvcc
            Reporter: Igor Seliverstov
            Assignee: Andrew Mashenkov


Current the UpdateSourceIterator implementation doesn't suit Cache API needs. It should be
able to mix operation types per key. 

For example we may execute putAll operation with a half of keys are having values and a half
aren't, this way we should mix DELETE operation for null-value keys and PUT operation for
others.

Another use case is a transform operation which should turn into a number of PUT/UPDATE/DELETE
operations on a backup node.



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