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Posted to dev@jena.apache.org by "Paolo Castagna (JIRA)" <ji...@apache.org> on 2011/02/15 20:24:57 UTC
[jira] Issue Comment Edited: (JENA-44) Support external sorting of
bindings in ARQ
[ https://issues.apache.org/jira/browse/JENA-44?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12994877#comment-12994877 ]
Paolo Castagna edited comment on JENA-44 at 2/15/11 7:24 PM:
-------------------------------------------------------------
> I'll merge in the changes from JENA-29 now.
Great, then you could also experience the thrill of jena-patcher [1] script and update the JENA-44 SNAPSHOTs for people to try/test this (nice) patch. ;-)
[1] https://github.com/castagna/jena-patcher
was (Author: castagna):
> I'll merge in the changes from JENA-29 now.
Great, then you could also experience the trill of jena-patcher [1] script and update the JENA-44 SNAPSHOTs for people to try/test this (nice) patch. ;-)
[1] https://github.com/castagna/jena-patcher
> Support external sorting of bindings in ARQ
> -------------------------------------------
>
> Key: JENA-44
> URL: https://issues.apache.org/jira/browse/JENA-44
> Project: Jena
> Issue Type: New Feature
> Components: ARQ
> Reporter: Sam Tunnicliffe
> Priority: Minor
> Attachments: JENA-44-0.patch
>
>
> In QueryIterSort, the sorting of the contents of an Iterator<Binding> is done in memory, using Arrays.sort. This can be problematic where the set to be sorted is large. A possible solution could be to use an external, disk-backed algorithm. A hybrid approach may be better, whereby we attempt the in-memory sort, but when the number of bindings encountered goes over a certain number, resort to the disk-backed variant.
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