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From "Jonathan Ellis (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3974) Per-CF TTL
Date Thu, 12 Apr 2012 16:07:20 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252522#comment-13252522
] 

Jonathan Ellis commented on CASSANDRA-3974:
-------------------------------------------

bq. In the initial patch, I had made changes to both UpdateStatement.addToMutation and ColumnFamily.addColumn
to use the larger of the column's TTL or the column family default TTL

Oops, I totally missed the addColumn changes.  That's exactly what I had in mind.

It sounds like you have an updated patch, could you post that?
                
> 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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