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From "Tupshin Harper (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-5514) Allow timestamp hints
Date Tue, 30 Apr 2013 12:08:16 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13645010#comment-13645010
] 

Tupshin Harper edited comment on CASSANDRA-5514 at 4/30/13 12:06 PM:
---------------------------------------------------------------------

See CASSANDRA-3581 for a previous ticket along similar lines.

+1 on no additional syntax and Sylvain's general approach.

+1000 on a time-series aware compaction strategy. That is where the big win will be.
                
      was (Author: tupshin):
    See CASSANDRA-5518 for a previous ticket along similar lines.

+1 on no additional syntax and Sylvain's general approach.

+1000 on a time-series aware compaction strategy. That is where the big win will be.
                  
> Allow timestamp hints
> ---------------------
>
>                 Key: CASSANDRA-5514
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5514
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Jonathan Ellis
>            Assignee: Marcus Eriksson
>             Fix For: 2.0
>
>
> Slice queries can't optimize based on timestamp except for rare cases (CASSANDRA-4116).
 However, many common queries involve an implicit time component, where the application author
knows that he is only interested in data more recent than X, or older than Y.
> We could use the per-sstable max and min timestamps we track to avoid touching cold data
if we could pass a hint to Cassandra about the time range we care about.

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