[jira] [Commented] (HBASE-10560) Per cell TTLs

["Vladimir Rodionov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-10560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14940195#comment-14940195 ] 

Vladimir Rodionov commented on HBASE-10560:
-------------------------------------------

That is from Phoenix thread
{quote}
By the way a cell TTL is not a future timestamp, it's the desired lifetime of the cell in milliseconds. Cell TTLs can't cause a cell to live beyond any TTL defined in the table schema (due to TTL handling optimizations at the Store level), so it would make sense to throw an exception if we detect a user is trying to do that.
{quote}

I do not think HBase checks if the cell TTL is greater than CF TTL.

> Per cell TTLs
> -------------
>
>                 Key: HBASE-10560
>                 URL: https://issues.apache.org/jira/browse/HBASE-10560
>             Project: HBase
>          Issue Type: New Feature
>    Affects Versions: 0.98.0
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>             Fix For: 1.0.0, 2.0.0, 0.98.9
>
>
> Now that we have cell tags, we can optionally store TTLs per cell. 



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