Return-Path: 
 <commits-return-113140-apmail-cassandra-commits-archive=cassandra.apache.org@cassandra.apache.org>
X-Original-To: apmail-cassandra-commits-archive@www.apache.org
Delivered-To: apmail-cassandra-commits-archive@www.apache.org
Received: from mail.apache.org (hermes.apache.org [140.211.11.3])
	by minotaur.apache.org (Postfix) with SMTP id C081617467
	for <apmail-cassandra-commits-archive@www.apache.org>;
 Mon, 29 Sep 2014 06:32:37 +0000 (UTC)
Received: (qmail 94667 invoked by uid 500); 29 Sep 2014 06:32:34 -0000
Delivered-To: apmail-cassandra-commits-archive@cassandra.apache.org
Received: (qmail 94631 invoked by uid 500); 29 Sep 2014 06:32:34 -0000
Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:commits-help@cassandra.apache.org>
List-Unsubscribe: <mailto:commits-unsubscribe@cassandra.apache.org>
List-Post: <mailto:commits@cassandra.apache.org>
List-Id: <commits.cassandra.apache.org>
Reply-To: dev@cassandra.apache.org
Delivered-To: mailing list commits@cassandra.apache.org
Received: (qmail 94619 invoked by uid 99); 29 Sep 2014 06:32:34 -0000
Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28)
    by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 29 Sep 2014 06:32:34 +0000
Date: Mon, 29 Sep 2014 06:32:34 +0000 (UTC)
From: "Sunil Kumar Singh (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <JIRA.12730469.1406637837000.143785.1411972354534@Atlassian.JIRA>
In-Reply-To: <JIRA.12730469.1406637837000@Atlassian.JIRA>
References: <JIRA.12730469.1406637837000@Atlassian.JIRA>
 <JIRA.12730469.1406637837075@arcas>
Subject: [jira] [Comment Edited] (CASSANDRA-7637) Add CQL3 keyword for
 efficient lexical range queries (e.g. START_WITH)
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394


    [ https://issues.apache.org/jira/browse/CASSANDRA-7637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14151407#comment-14151407 ] 

Sunil Kumar Singh edited comment on CASSANDRA-7637 at 9/29/14 6:31 AM:
-----------------------------------------------------------------------

I have started looking into this Issue once understand & I will mark it as In Progress. If any more suggestion on requirement, Please make it clear.  


was (Author: sunil_cass_dev):
I have started to looking into this Issue once understand & I will mark it as In Progress. If any more suggestion on requirement, Please make it clear.  

> Add CQL3 keyword for efficient lexical range queries (e.g. START_WITH)
> ----------------------------------------------------------------------
>
>                 Key: CASSANDRA-7637
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7637
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API
>            Reporter: Rustam Aliyev
>            Assignee: Sunil Kumar Singh
>             Fix For: 3.0
>
>
> Currently, if I want to perform range query on lexical type I need to do something like this:
> {code}
> SELECT * FROM profile WHERE profile_id = 123 AND
>                   attribute > 'interests.food.' AND
>                   attribute < 'interests.food.z';
> {code}
> This is very efficient range query. Yet, many users who are not familiar with Thrift and storage level implementation are unaware of this "trick".
> Therefore, it would be convenient to introduce CQL keyword which will do this more simply:
> {code}
> SELECT * FROM profile WHERE profile_id = 123 AND
>                   attribute START_WITH('interests.food.');
> {code}
> Keyword would have same restrictions as other inequality search operators plus some type restrictions.
> Allowed types would be:
>  * {{ascii}}
>  * {{text}} / {{varchar}}
>  * {{map<text, *>}} (same for ascii) (?)
>  * {{set<text>}} (same for ascii) (?)
> (?) may require more work, therefore optional



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)