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https://issues.apache.org/jira/browse/CASSANDRA-3974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13288953#comment-13288953
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Jonathan Ellis commented on CASSANDRA-3974:
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bq. when the user explicitly provides a column TTL longer than the default
column family TTL, I would think we'd either want to a) give an error, or b)
provide a warning
I'd be in favor of (a).
> Per-CF TTL
> ----------
>
> Key: CASSANDRA-3974
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3974
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Jonathan Ellis
> Assignee: Kirk True
> Priority: Minor
> Fix For: 1.2
>
> Attachments: trunk-3974.txt
>
>
> Per-CF TTL would allow compaction optimizations ("drop an entire sstable's
> worth of expired data") that we can't do with per-column.
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