From user-return-22454-apmail-cassandra-user-archive=cassandra.apache.org@cassandra.apache.org Fri Nov 18 19:31:59 2011 Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 6BE1D991A for ; Fri, 18 Nov 2011 19:31:59 +0000 (UTC) Received: (qmail 25374 invoked by uid 500); 18 Nov 2011 19:31:57 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 25356 invoked by uid 500); 18 Nov 2011 19:31:57 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 25348 invoked by uid 99); 18 Nov 2011 19:31:57 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 18 Nov 2011 19:31:57 +0000 X-ASF-Spam-Status: No, hits=4.0 required=5.0 tests=FREEMAIL_FROM,FREEMAIL_REPLY,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of dan.hendry.junk@gmail.com designates 209.85.160.172 as permitted sender) Received: from [209.85.160.172] (HELO mail-gy0-f172.google.com) (209.85.160.172) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 18 Nov 2011 19:31:50 +0000 Received: by ghrr14 with SMTP id r14so1155089ghr.31 for ; Fri, 18 Nov 2011 11:31:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:to:references:in-reply-to:subject:date:message-id:mime-version :content-type:x-mailer:thread-index:content-language; bh=S0DLxgYtmKU+KWnrfWSF6SFIt0/tT2xcug/npCj3DxY=; b=KSOupRTpHo5vIbU7wJt6+kY7jNIA1YXORjcKgJGnhTMjo7sxDh6zvodSPCQIxEmClU 97dYrvdm9h4tsO6k7hNOtnaeSLJWTQ1YgjfjKeREjmQiNjCzZ+wpEC4wr1Bu/kFJUEJq UvL3Gk58BAWLx5LrJYot4EahrH+YmbcdoVmpg= Received: by 10.236.175.72 with SMTP id y48mr7724692yhl.17.1321644689720; Fri, 18 Nov 2011 11:31:29 -0800 (PST) Received: from DHTABLET ([216.16.242.198]) by mx.google.com with ESMTPS id w68sm2104157yhe.14.2011.11.18.11.31.27 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 18 Nov 2011 11:31:28 -0800 (PST) From: "Dan Hendry" To: References: In-Reply-To: Subject: RE: The use of SuperColumns Date: Fri, 18 Nov 2011 14:31:07 -0500 Message-ID: <4ec6b290.e856ec0a.28b9.ffffa262@mx.google.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004B_01CCA5FE.B687EFA0" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: AcymIZYkO9WYFB31RfOXK6u8zbwliwABG6rA Content-Language: en-ca X-Virus-Checked: Checked by ClamAV on apache.org This is a multi-part message in MIME format. ------=_NextPart_000_004B_01CCA5FE.B687EFA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit My understanding is that support for super columns will remain within the thrift API for the foreseeable future (perhaps indefinitely?) but under the covers, super column families will get transitioned to regular column families with composite column names ( https://issues.apache.org/jira/browse/CASSANDRA-3237). If your starting from scratch, this is the approach you should probably take. Also see the following CQL related: http://www.mail-archive.com/user@cassandra.apache.org/msg13020.html https://issues.apache.org/jira/browse/CASSANDRA-2474 Dan From: ehershey@gmail.com [mailto:ehershey@gmail.com] Sent: November-18-11 13:40 To: user@cassandra.apache.org Subject: Re: The use of SuperColumns I'm also very curious about this. How deprecated/discouraged are super columns? Are they going to go away? What are the downsides to using them? Ernie On Fri, Nov 4, 2011 at 5:13 PM, Dwight Smith wrote: There have been mentions that the use of SuperColumns is not really encouraged, recommendation to use composite columns instead. Will SuperColumns be removed. Any comments greatly appreciated. CONFIDENTIALITY NOTICE: This e-mail and any files attached may contain confidential and proprietary information of Alcatel-Lucent and/or its affiliated entities. Access by the intended recipient only is authorized. Any liability arising from any party acting, or refraining from acting, on any information contained in this e-mail is hereby excluded. If you are not the intended recipient, please notify the sender immediately, destroy the original transmission and its attachments and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Copyright in this e-mail and any attachments belongs to Alcatel-Lucent and/or its affiliated entities. No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.920 / Virus Database: 271.1.1/4022 - Release Date: 11/18/11 02:47:00 ------=_NextPart_000_004B_01CCA5FE.B687EFA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

My understanding is that support for super columns will remain within = the thrift API for the foreseeable future (perhaps indefinitely?) but = under the covers, super column families will get transitioned to regular = column families with composite column names (https://iss= ues.apache.org/jira/browse/CASSANDRA-3237). If your starting from scratch, this is the approach you should = probably take.

 

Also see the following CQL related:

http://www.= mail-archive.com/user@cassandra.apache.org/msg13020.html

https://iss= ues.apache.org/jira/browse/CASSANDRA-2474

 

Dan

 

From:= = ehershey@gmail.com [mailto:ehershey@gmail.com]
Sent: = November-18-11 13:40
To: = user@cassandra.apache.org
Subject: Re: The use of = SuperColumns

 

I'm also = very curious about this. How deprecated/discouraged are super columns? = Are they going to go away? What are the downsides to using = them?

 

Ernie   

On Fri, Nov 4, 2011 at 5:13 PM, Dwight Smith <Dwight.Smith@alcatel-luce= nt.com> wrote:

There have been mentions that the use of SuperColumns is = not really encouraged, recommendation to use composite columns = instead.  Will SuperColumns be removed.  Any comments greatly = appreciated.

 

 


CONFIDENTIALITY NOTICE: This = e-mail and any files attached may contain confidential and proprietary = information of Alcatel-Lucent and/or its affiliated entities. Access by = the intended recipient only is authorized. Any liability arising from = any party acting, or refraining from acting, on any information = contained in this e-mail is hereby excluded. If you are not the intended = recipient, please notify the sender immediately, destroy the original = transmission and its attachments and do not disclose the contents to any = other person, use it for any purpose, or store or copy the information = in any medium. Copyright in this e-mail and any attachments belongs to = Alcatel-Lucent and/or its affiliated = entities.

 

No virus = found in this incoming message.
Checked by AVG - = www.avg.com
Version: 9.0.920 / Virus Database: 271.1.1/4022 - Release = Date: 11/18/11 02:47:00

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