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https://issues.apache.org/jira/browse/CASSANDRA-5357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13865495#comment-13865495
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Marcus Eriksson commented on CASSANDRA-5357:
--------------------------------------------

So, trying to distill what we actually want here;

* Make it possible to cache parts of the partitions (CASSANDRA-1956) ("head", 
"tail" and "all" perhaps, for users who use it today)
* Don't evict entire partitions on writes (CASSANDRA-2864)
* Add heuristics to guess the number of columns to be cached (maybe push to 
later versions, configurable sizes could be fine for now)

anything else? [~jbellis] [~slebresne]

> Query cache / partition head cache
> ----------------------------------
>
>                 Key: CASSANDRA-5357
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5357
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Jonathan Ellis
>            Assignee: Marcus Eriksson
>             Fix For: 2.1
>
>
> I think that most people expect the row cache to act like a query cache, 
> because that's a reasonable model.  Caching the entire partition is, in 
> retrospect, not really reasonable, so it's not surprising that it catches 
> people off guard, especially given the confusion we've inflicted on ourselves 
> as to what a "row" constitutes.
> I propose replacing it with a true query cache.



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