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https://issues.apache.org/jira/browse/CASSANDRA-5184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14204094#comment-14204094
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Robert Stupp commented on CASSANDRA-5184:
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IMO this is what user-defined scalar and aggregate functions do.
Resolve this one?
> Support server side operations on evaluating queries
> ----------------------------------------------------
>
> Key: CASSANDRA-5184
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5184
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: T Jake Luciani
> Fix For: 3.0
>
>
> Now that CQL3 makes it simple to create a table within a traditional
> cassandra row
> there are many kind of simple operations we'd like to perform as a query is
> being evaluated. Since the query sticks to a single node and it is
> effectively a sequential scan.
> If we piggy back a small function to evaluate each matching column then we
> could implement things like timeseries filters and efficient versions of
> count() min() max() and sum()
> I wanted to open the door to further discussion.
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