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From "Maxim Muzafarov (Jira)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-10576) MVCC TX: Rework UpdateSourceIterator to mix operation types
Date Wed, 02 Oct 2019 15:47:01 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-10576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Maxim Muzafarov updated IGNITE-10576:
-------------------------------------
    Fix Version/s:     (was: 2.8)

> MVCC TX: Rework UpdateSourceIterator to mix operation types
> -----------------------------------------------------------
>
>                 Key: IGNITE-10576
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10576
>             Project: Ignite
>          Issue Type: Task
>          Components: mvcc
>            Reporter: Igor Seliverstov
>            Priority: Minor
>
> The current 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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