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https://issues.apache.org/jira/browse/MARMOTTA-627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15142742#comment-15142742
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ASF subversion and git services commented on MARMOTTA-627:
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Commit 808403d163079271dbc1db0dbf22e6faf0f1b924 in marmotta's branch
refs/heads/develop from [~wikier]
[ https://git-wip-us.apache.org/repos/asf?p=marmotta.git;h=808403d ]
Merge branch 'MARMOTTA-627' into develop
> Arithmetic operation in Sparql query not working properly
> ---------------------------------------------------------
>
> Key: MARMOTTA-627
> URL: https://issues.apache.org/jira/browse/MARMOTTA-627
> Project: Marmotta
> Issue Type: Bug
> Components: KiWi Triple Store
> Affects Versions: 3.4.0
> Environment: Postgresql: 9.3.10
> Server version: Apache Tomcat/7.0.52 (Ubuntu)
> OS Name: Ubuntu 14.04
> OS Version: 3.13.0-74-generic
> Architecture: amd64
> JVM Version: 1.7.0_91-b02
> JVM Vendor: Oracle Corporation
> Marmotta: 3.4.0
> Reporter: Rinciog Octavian
> Assignee: Sergio Fernández
> Labels: Arithmetic
> Fix For: 3.4.0
>
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> Hy,
> I'm trying to calculate some distances and I need to make some arithmetic
> operations with some numbers below 1.
> Unfortunately, this kind of operation seems not to work with the latest
> version of Apache Marmotta (I'm using Apache Marmotta built from repo).
> For example, the following query returns -39.5!!!!
> {code}SELECT ( (4.5-4.4)*0.1 as ?c) WHERE {}{code}
> I've tried many combinations with {{xsd:decimal}}, {{xsd:float}},
> {{xsd:double}}, but the answer is or 1.000 or -39.5.
> Other examples:
> {code}SELECT (0.1*0.1 as ?c) WHERE {} => 1.00{code}
> {code}SELECT ( 0.10*0.01 as ?c) WHERE {} => 10.0 {code}
> {code}SELECT ( 1.00*3.10 as ?c) WHERE {} => 0.32258064516129032258{code}
> {code}SELECT ( 2.00*4.00 as ?c) WHERE {} => 0.500{code}
> {code}SELECT (xsd:decimal(2.80)*xsd:decimal(3.00) as ?c) WHERE {} =>
> 0.9333{code}
> Thank you,
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