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https://issues.apache.org/jira/browse/ACCUMULO-803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13805671#comment-13805671
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John Vines commented on ACCUMULO-803:
-------------------------------------

I feel bad about bumping this to 1.7 because it got bumped to 1.6 with a patch. 
[[email protected]] or [~kturner], is it possible for you to do a revised 
patch for 1.6?

> Add Reverse Logical Time as a Time Type
> ---------------------------------------
>
>                 Key: ACCUMULO-803
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-803
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: tserver
>            Reporter: Drew Farris
>            Assignee: Drew Farris
>            Priority: Minor
>             Fix For: 1.6.0
>
>         Attachments: ACCUMULO-803-3.patch, ACCUMULO-803.patch, 
> ACCUMULO-803.patch, RLTest.java
>
>
> In a context where we are doing aggregation/combination of multiple values 
> for a given key it may be useful to iterate over the values associated with 
> that key in the order in which the mutations were applied (FIFO), instead of 
> the FILO order that seems to occur when using {{TimeType.LOGICAL}}. 
> I encountered when implemeting a checkAndPut operation that would ensure that 
> the previous value was expected before putting a new value. In this case, if 
> the previous value was not as expected, the mutation would be ignored. 
> Perhaps it is useful in a general case?



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