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https://issues.apache.org/jira/browse/JENA-111?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paolo Castagna reassigned JENA-111:
-----------------------------------
Assignee: Paolo Castagna
> Improving TopN optimization in case of an intermediate OpModifier
> -----------------------------------------------------------------
>
> Key: JENA-111
> URL: https://issues.apache.org/jira/browse/JENA-111
> Project: Jena
> Issue Type: Improvement
> Components: ARQ
> Reporter: Sara Magliacane
> Assignee: Paolo Castagna
> Priority: Minor
> Labels: arq, optimization
> Attachments: topk_project.patch
>
>
> In the TopN optimization (Jena-89) it would be useful to handle also the
> case in which there are some other OpModifiers (I think they are the only
> category of Ops that can be in that position in the tree) between Slice and
> Order By, for example OpProject:
> (slice _1
> (project ?s ...
> (order by <condition>
> ->
> (project ?s ...
> (top 1 <condition>
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