Re: [GSoC 2013] jena-spatial
On 27/07/13 14:40, Ying Jiang wrote: Hi, The default distance units measurement is miles. I've just committed a major change of the codes, including the following updates: 1) Support spatial indexing of WKT literal, including Point, Polygon or any other kinds of shapes. 2) New property functions of withinCirle, withinBox, intersectsBox, north, south, east, west 3) Support different distance units for nearby, such as miles, kilometers, degrees, meters and so on. 4) Examples are updated [1]. You can play with the new features of jena-spatial. It's almost half-way of the GSoC project. In the upcoming second half, I'll bring more visibility of code progress to the community, at least one report per week. Thanks to Andy for pointing it out! [1] https://jena-spatial.googlecode.com/svn/trunk/src/main/java/examples/JenaSpatialExample1.java On Tue, Jul 23, 2013 at 9:37 PM, Andy Seaborne a...@apache.org wrote: In the example query there is: ?s spatial:nearby (51.3000 -2.71000 100) What units are the 100? Can the application provide different units? Andy Things are looking very good. How does this fit with the original plan in terms of functionality available? As we enter the second part of the GSoC, we need to be thinking about * A release That does not mean it's complete and a release needn't be a major cost in time. Having even one or two people try it out really helps in understanding what people might do with spatial indexing. It can be a message to the users Jena mailing list announcing status of the project and assuming interested people will grab the source and compile a jar for themselves. But, if you want to, we can do something more packaged - anything up to and including migrating the code to Jena SVN and putting in a Jenkins job to build it into Jena's snapshot maven repository that's doable. A couple of things go with that: * Testing src/java/test is a bit empty :-) * User documentation Enough that someone can setup and use the project - short, to the point and now is better than long and detailed and later. (The final phase of GSoC is write-up - that's needs to cover the next developers to come along.) What do you think about this? Andy
Re: [GSoC 2013] jena-spatial
I also would like to see a file based index while you are at it and not just the in memory spatial lucene engine example. On Mon, Jul 29, 2013 at 10:44 AM, Andy Seaborne a...@apache.org wrote: On 27/07/13 14:40, Ying Jiang wrote: Hi, The default distance units measurement is miles. I've just committed a major change of the codes, including the following updates: 1) Support spatial indexing of WKT literal, including Point, Polygon or any other kinds of shapes. 2) New property functions of withinCirle, withinBox, intersectsBox, north, south, east, west 3) Support different distance units for nearby, such as miles, kilometers, degrees, meters and so on. 4) Examples are updated [1]. You can play with the new features of jena-spatial. It's almost half-way of the GSoC project. In the upcoming second half, I'll bring more visibility of code progress to the community, at least one report per week. Thanks to Andy for pointing it out! [1] https://jena-spatial.**googlecode.com/svn/trunk/src/**main/java/examples/ **JenaSpatialExample1.javahttps://jena-spatial.googlecode.com/svn/trunk/src/main/java/examples/JenaSpatialExample1.java On Tue, Jul 23, 2013 at 9:37 PM, Andy Seaborne a...@apache.org wrote: In the example query there is: ?s spatial:nearby (51.3000 -2.71000 100) What units are the 100? Can the application provide different units? Andy Things are looking very good. How does this fit with the original plan in terms of functionality available? As we enter the second part of the GSoC, we need to be thinking about * A release That does not mean it's complete and a release needn't be a major cost in time. Having even one or two people try it out really helps in understanding what people might do with spatial indexing. It can be a message to the users Jena mailing list announcing status of the project and assuming interested people will grab the source and compile a jar for themselves. But, if you want to, we can do something more packaged - anything up to and including migrating the code to Jena SVN and putting in a Jenkins job to build it into Jena's snapshot maven repository that's doable. A couple of things go with that: * Testing src/java/test is a bit empty :-) * User documentation Enough that someone can setup and use the project - short, to the point and now is better than long and detailed and later. (The final phase of GSoC is write-up - that's needs to cover the next developers to come along.) What do you think about this? Andy -- --- Marco Neumann KONA
Query regarding Jena's indexes
Hi I read the classic paper Efficient RDF Storage and Retrieval in Jena2. However, from the paper I am unable to understand how GSPO, GOSP, etc (employed within Jena TDB) indexes are stored. Can you please give me pointers from where I can understand more about these indexes in Jena TDB. I'll be highly thankful to you for the same. With warm regards, Rose
[jira] [Updated] (JENA-495) Regression in evaluation of aggregates with trailing VALUES
[
https://issues.apache.org/jira/browse/JENA-495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mark Buquor updated JENA-495:
-
Description:
The following query returns \{\{x, 1},{x, 2}} with 2.7.1 and 2.10.1 as expected:
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }
The following query returns \{\{sum,3}} with 2.7.1. With 2.10.1, it returns no
results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns \{\{count,2}} with 2.7.1. With 2.10.1, it returns
\{\{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the WHERE.
e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
was:
The following query returns {{x, 1},{x, 2}} with 2.7.1 and 2.10.1 as expected:
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{sum,3}} with 2.7.1. With 2.10.1, it returns no
results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{count,2}} with 2.7.1. With 2.10.1, it returns
{{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the WHERE.
e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
Regression in evaluation of aggregates with trailing VALUES
---
Key: JENA-495
URL: https://issues.apache.org/jira/browse/JENA-495
Project: Apache Jena
Issue Type: Bug
Components: ARQ, Jena
Affects Versions: Jena 2.10.1
Reporter: Mark Buquor
The following query returns \{\{x, 1},{x, 2}} with 2.7.1 and 2.10.1 as
expected:
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }
The following query returns \{\{sum,3}} with 2.7.1. With 2.10.1, it returns
no results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns \{\{count,2}} with 2.7.1. With 2.10.1, it returns
\{\{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the
WHERE. e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
--
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If you think it was sent incorrectly, please contact your JIRA administrators
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[jira] [Created] (JENA-495) Regression in evaluation of aggregates with trailing VALUES
Mark Buquor created JENA-495:
Summary: Regression in evaluation of aggregates with trailing
VALUES
Key: JENA-495
URL: https://issues.apache.org/jira/browse/JENA-495
Project: Apache Jena
Issue Type: Bug
Components: ARQ, Jena
Affects Versions: Jena 2.10.1
Reporter: Mark Buquor
The following query returns {{x, 1},{x, 2}} with 2.7.1 and 2.10.1 as expected:
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{sum,3}} with 2.7.1. With 2.10.1, it returns no
results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{count,2}} with 2.7.1. With 2.10.1, it returns
{{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the WHERE.
e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
--
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If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (JENA-495) Regression in evaluation of aggregates with trailing VALUES
[
https://issues.apache.org/jira/browse/JENA-495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mark Buquor updated JENA-495:
-
Description:
The following query returns {quote}{{x, 1},{x, 2}}{quote} with 2.7.1 and 2.10.1
as expected:
{quote} PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }{quote}
The following query returns {{sum,3}} with 2.7.1. With 2.10.1, it returns no
results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{count,2}} with 2.7.1. With 2.10.1, it returns
{{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the WHERE.
e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
was:
The following query returns \{\{x, 1},{x, 2}} with 2.7.1 and 2.10.1 as expected:
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }
The following query returns \{\{sum,3}} with 2.7.1. With 2.10.1, it returns no
results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns \{\{count,2}} with 2.7.1. With 2.10.1, it returns
\{\{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the WHERE.
e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
Regression in evaluation of aggregates with trailing VALUES
---
Key: JENA-495
URL: https://issues.apache.org/jira/browse/JENA-495
Project: Apache Jena
Issue Type: Bug
Components: ARQ, Jena
Affects Versions: Jena 2.10.1
Reporter: Mark Buquor
The following query returns {quote}{{x, 1},{x, 2}}{quote} with 2.7.1 and
2.10.1 as expected:
{quote} PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }{quote}
The following query returns {{sum,3}} with 2.7.1. With 2.10.1, it returns no
results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{count,2}} with 2.7.1. With 2.10.1, it returns
{{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the
WHERE. e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
--
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
[jira] [Updated] (JENA-495) Regression in evaluation of aggregates with trailing VALUES
[
https://issues.apache.org/jira/browse/JENA-495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mark Buquor updated JENA-495:
-
Description:
{noformat}
The following query returns {{x, 1},{x, 2}} with 2.7.1 and 2.10.1 as expected:
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{sum,3}} with 2.7.1. With 2.10.1, it returns no
results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{count,2}} with 2.7.1. With 2.10.1, it returns
{{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the WHERE.
e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
{noformat}
was:
The following query returns {quote}{{x, 1},{x, 2}}{quote} with 2.7.1 and 2.10.1
as expected:
{quote} PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }{quote}
The following query returns {{sum,3}} with 2.7.1. With 2.10.1, it returns no
results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{count,2}} with 2.7.1. With 2.10.1, it returns
{{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the WHERE.
e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
Regression in evaluation of aggregates with trailing VALUES
---
Key: JENA-495
URL: https://issues.apache.org/jira/browse/JENA-495
Project: Apache Jena
Issue Type: Bug
Components: ARQ, Jena
Affects Versions: Jena 2.10.1
Reporter: Mark Buquor
{noformat}
The following query returns {{x, 1},{x, 2}} with 2.7.1 and 2.10.1 as expected:
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{sum,3}} with 2.7.1. With 2.10.1, it returns no
results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{count,2}} with 2.7.1. With 2.10.1, it returns
{{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the
WHERE. e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
{noformat}
--
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If you think it was sent incorrectly, please contact your JIRA administrators
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[jira] [Commented] (JENA-495) Regression in evaluation of aggregates with trailing VALUES
[
https://issues.apache.org/jira/browse/JENA-495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13722866#comment-13722866
]
Mark Buquor commented on JENA-495:
--
Thanks for the clarification.
Regression in evaluation of aggregates with trailing VALUES
---
Key: JENA-495
URL: https://issues.apache.org/jira/browse/JENA-495
Project: Apache Jena
Issue Type: Bug
Components: ARQ, Jena
Affects Versions: Jena 2.10.1
Reporter: Mark Buquor
Assignee: Rob Vesse
{noformat}
The following query returns {{x, 1},{x, 2}} with 2.7.1 and 2.10.1 as expected:
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT *
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{sum,3}} with 2.7.1. With 2.10.1, it returns no
results.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (SUM(?x) AS ?sum)
WHERE { }
VALUES ?x { 1 2 }
The following query returns {{count,2}} with 2.7.1. With 2.10.1, it returns
{{count,0},{count,0}}.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { }
VALUES ?x { 1 2 }
The queries work as expected with 2.10.1 if the VALUES is moved into the
WHERE. e.g.
PREFIX xsd: http://www.w3.org/2001/XMLSchema#
SELECT (COUNT(?x) AS ?count)
WHERE { VALUES ?x { 1 2 } }
{noformat}
--
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
