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Posted to dev@jena.apache.org by "Giuseppe Sollazzo (Created) (JIRA)" <ji...@apache.org> on 2012/03/30 17:08:28 UTC
[jira] [Created] (JENA-228) Limiting query output centrally
Limiting query output centrally
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Key: JENA-228
URL: https://issues.apache.org/jira/browse/JENA-228
Project: Apache Jena
Issue Type: New Feature
Components: Fuseki
Affects Versions: Fuseki 0.2.1
Reporter: Giuseppe Sollazzo
I was wondering whether there will be some way of limiting output in fuseki. Basically, I'd like to be able to enforce limits on the number of results returned by the system.
As an example, think about a "numrows" in sql.
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[jira] [Updated] (JENA-228) Limiting query output centrally
Posted by "Andy Seaborne (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/JENA-228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andy Seaborne updated JENA-228:
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Component/s: ARQ
Affects Version/s: ARQ 2.9.0
> Limiting query output centrally
> -------------------------------
>
> Key: JENA-228
> URL: https://issues.apache.org/jira/browse/JENA-228
> Project: Apache Jena
> Issue Type: New Feature
> Components: ARQ, Fuseki
> Affects Versions: ARQ 2.9.0, Fuseki 0.2.1
> Reporter: Giuseppe Sollazzo
>
> I was wondering whether there will be some way of limiting output in fuseki. Basically, I'd like to be able to enforce limits on the number of results returned by the system.
> As an example, think about a "numrows" in sql.
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[jira] [Commented] (JENA-228) Limiting query output centrally
Posted by "Andy Seaborne (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/JENA-228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13242423#comment-13242423 ]
Andy Seaborne commented on JENA-228:
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There isn't -- it would be a good idea though. A patch contributed would be gratefully received.
The structure would be to take a limit from the context of execution (which is the context found in the order query execution specific settings -- dataset specific setting -- global settings), then wrap a (limit) algebra operator around the execution. This limits the graph pattern (.e. SELECT query) but that would be useful on it's own.
It looks to me like an ARQ feature - not specific to Fuseki.
See also JENA-218 about timeouts.
> Limiting query output centrally
> -------------------------------
>
> Key: JENA-228
> URL: https://issues.apache.org/jira/browse/JENA-228
> Project: Apache Jena
> Issue Type: New Feature
> Components: ARQ, Fuseki
> Affects Versions: ARQ 2.9.0, Fuseki 0.2.1
> Reporter: Giuseppe Sollazzo
>
> I was wondering whether there will be some way of limiting output in fuseki. Basically, I'd like to be able to enforce limits on the number of results returned by the system.
> As an example, think about a "numrows" in sql.
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