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https://issues.apache.org/jira/browse/CASSANDRA-17425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17504230#comment-17504230
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Benjamin Lerer commented on CASSANDRA-17425:
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[~yifanc] I am not against this functionality but is it not a work around.
Would we need this functionality if CASSANDRA-8877 was fixed?
I am always a bit relunctant to add new selectors as I often had to modify all
of them to introduce new features.
> Add new CQL function maxWritetime
> ---------------------------------
>
> Key: CASSANDRA-17425
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17425
> Project: Cassandra
> Issue Type: Improvement
> Components: CQL/Syntax
> Reporter: Yifan Cai
> Assignee: Yifan Cai
> Priority: Normal
>
> The function "writetime" does not support multi-cell types, e.g. collections
> and UDT. It would be useful to enable querying the latest modified timestamp
> of a column value.
> I'd like to propose to add a new function named "maxWritetime", which returns
> the largest timestamp amongst the cells. When being applied to the single
> cell types, it returns the same result as "writetime".
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