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https://issues.apache.org/jira/browse/CASSANDRA-8846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14330435#comment-14330435
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Aleksey Yeschenko commented on CASSANDRA-8846:
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Furthermore, the correct way to implement this would involve modifying CQL
grammar and SelectStatement, and involve much more work to do right.
In general, the preferred solution would be for users to do it manually.
Paginate over the results of the "sub" query, and asynchronously fetch
partitions with those returned ids.
> SubQuery and IN operator implementation
> ----------------------------------------
>
> Key: CASSANDRA-8846
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8846
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Job M Thomas
> Priority: Minor
> Fix For: 3.0
>
> Attachments: SubQuery.rar
>
>
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