Return-Path: 
 <dev-return-237295-apmail-lucene-dev-archive=lucene.apache.org@lucene.apache.org>
X-Original-To: apmail-lucene-dev-archive@www.apache.org
Delivered-To: apmail-lucene-dev-archive@www.apache.org
Received: from mail.apache.org (hermes.apache.org [140.211.11.3])
	by minotaur.apache.org (Postfix) with SMTP id 65CAF18891
	for <apmail-lucene-dev-archive@www.apache.org>;
 Sat, 27 Feb 2016 22:06:19 +0000 (UTC)
Received: (qmail 19584 invoked by uid 500); 27 Feb 2016 22:06:18 -0000
Delivered-To: apmail-lucene-dev-archive@lucene.apache.org
Received: (qmail 19514 invoked by uid 500); 27 Feb 2016 22:06:18 -0000
Mailing-List: contact dev-help@lucene.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:dev-help@lucene.apache.org>
List-Unsubscribe: <mailto:dev-unsubscribe@lucene.apache.org>
List-Post: <mailto:dev@lucene.apache.org>
List-Id: <dev.lucene.apache.org>
Reply-To: dev@lucene.apache.org
Delivered-To: mailing list dev@lucene.apache.org
Received: (qmail 19504 invoked by uid 99); 27 Feb 2016 22:06:18 -0000
Received: from arcas.apache.org (HELO arcas) (140.211.11.28)
    by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 27 Feb 2016 22:06:18 +0000
Received: from arcas.apache.org (localhost [127.0.0.1])
	by arcas (Postfix) with ESMTP id 251282C14F8
	for <dev@lucene.apache.org>; Sat, 27 Feb 2016 22:06:18 +0000 (UTC)
Date: Sat, 27 Feb 2016 22:06:18 +0000 (UTC)
From: =?utf-8?Q?Tom=C3=A1s_Fern=C3=A1ndez_L=C3=B6bbe_=28JIRA=29?=
 <jira@apache.org>
To: dev@lucene.apache.org
Message-ID: <JIRA.12938346.1455140279000.165842.1456610778148@Atlassian.JIRA>
In-Reply-To: <JIRA.12938346.1455140279000@Atlassian.JIRA>
References: <JIRA.12938346.1455140279000@Atlassian.JIRA>
 <JIRA.12938346.1455140279747@arcas>
Subject: [jira] [Commented] (SOLR-8671) Date statistics: make "sum" a double
 instead of a long/date
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394


    [ https://issues.apache.org/jira/browse/SOLR-8671?page=3Dcom.atlassian.=
jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D15170=
735#comment-15170735 ]=20

Tom=C3=A1s Fern=C3=A1ndez L=C3=B6bbe commented on SOLR-8671:
---------------------------------------------

I added this change:=20
{noformat}
-    return Math.sqrt(((count * sumOfSquares) - (sum * (double)sum))
+    return Math.sqrt(((count * sumOfSquares) - (sum * sum))
{noformat}
since sum is now a double

> Date statistics: make "sum" a double instead of a long/date
> -----------------------------------------------------------
>
>                 Key: SOLR-8671
>                 URL: https://issues.apache.org/jira/browse/SOLR-8671
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Tom=C3=A1s Fern=C3=A1ndez L=C3=B6bbe
>            Assignee: Tom=C3=A1s Fern=C3=A1ndez L=C3=B6bbe
>             Fix For: master
>
>         Attachments: 0001-change-date-sum-to-double.patch
>
>
> Currently {{DateStatsValues#sum}} is defined as long, and returned as a d=
ate. This has two problems: It overflows (with ~6 million values), and the =
return value can be a date like {{<date name=3D"sum">122366-06-12T21:06:06Z=
</date>}}. I think we should just change this stat to a double. See SOLR-84=
20.
> I think we can change this only in master, since it will break backward c=
ompatibility.



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

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org