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https://issues.apache.org/jira/browse/CASSANDRA-6559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13985660#comment-13985660
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Jonathan Ellis commented on CASSANDRA-6559:
-------------------------------------------

There's tension between "smooth the learning curve for new users so they don't 
ragequit and go use mongo instead" and "make it harder for people to shoot 
themselves in the foot."  We're going to continue to optimize for the former, 
but adding cqlsh-side warning is reasonable.

> cqlsh should warn about ALLOW FILTERING
> ---------------------------------------
>
>                 Key: CASSANDRA-6559
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6559
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>            Reporter: Tupshin Harper
>            Assignee: Aleksey Yeschenko
>            Priority: Minor
>             Fix For: 2.0.8
>
>
> ALLOW FILTERING can be a convenience for preliminary exploration of your 
> data, and can be useful for batch jobs, but it is such an anti-pattern for 
> regular production queries, that cqlsh should provie an explicit warn 
> ingwhenever such a query is performed.



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