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https://issues.apache.org/jira/browse/JENA-329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13715229#comment-13715229
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Andy Seaborne commented on JENA-329:
------------------------------------

The other output route is via bin/tdbquery.

Adding a {{\--stream}} or {{\--stream=}}  argument to produce CONSTRUCT results 
at scale would be good as well (i.e. access to the 
QueryExecution.execConstructTriples() operation).

                
> Add streaming CONSTRUCT results to Fuseki
> -----------------------------------------
>
>                 Key: JENA-329
>                 URL: https://issues.apache.org/jira/browse/JENA-329
>             Project: Apache Jena
>          Issue Type: Improvement
>          Components: Fuseki
>            Reporter: Stephen Allen
>
> As a result of JENA-205, streaming results are now available for CONSTRUCT 
> queries.  However there can be duplicate triples in the iterator.  This task 
> is to allow Fuseki to stream back results, while at the same time performing 
> a distinct operation.
> The fix would be to modify SPARQL_Query to use 
> QueryExecution.execConstructTriples() and filter the results through a 
> DistinctDataNet<Triple> as they are being streamed back to the client.
> This also requires RDFWriter implementations that can accept Iterator<Triple> 
> instead of Model.

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