Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Date: Tue, 30 Oct 2012 21:48:13 +0000 (UTC)
From: "Varun Sharma (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <1254588687.47079.1351633693259.JavaMail.jiratomcat@arcas>
Subject: [jira] [Created] (HBASE-7075) Allow ColumnPaginationFilter to
 accept qualifier name as input
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

Varun Sharma created HBASE-7075:
-----------------------------------

             Summary: Allow ColumnPaginationFilter to accept qualifier name as input
                 Key: HBASE-7075
                 URL: https://issues.apache.org/jira/browse/HBASE-7075
             Project: HBase
          Issue Type: Improvement
          Components: Filters
            Reporter: Varun Sharma
            Assignee: Varun Sharma


Currently column pagination filter takes (offset, limit) as the parameters. It then scans through until offset and then retrieves "limit" number of columns.

A lot of times we can do pagination in the following manner:
1) Provide offset=0, limit=50
2) Get <last_column_id> obtained and then Provide offset=<last_column_id>, limit=50 to get the next set of columns.

Since we can seek to column qualifier names - this will allow for faster pagination using columns and ColumnPaginationFilter (particularly if there are millions of columns).

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira