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https://issues.apache.org/jira/browse/SOLR-8888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15215198#comment-15215198
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Joel Bernstein commented on SOLR-8888:
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Initial manual testing with the Enron emails is going well and returning the
shortest path nicely. Next step is to add the Streaming Expression syntax and
add more junit tests.
> Add shortestPath Streaming Expression
> -------------------------------------
>
> Key: SOLR-8888
> URL: https://issues.apache.org/jira/browse/SOLR-8888
> Project: Solr
> Issue Type: Improvement
> Reporter: Joel Bernstein
> Attachments: SOLR-8888.patch, SOLR-8888.patch, SOLR-8888.patch,
> SOLR-8888.patch
>
>
> This ticket is to implement a distributed shortest path graph traversal as a
> Streaming Expression.
> possible expression syntax:
> {code}
> shortestPath(collection,
> from="colA:node1",
> to="colB:node2",
> fq="limiting query",
> maxDepth="10")
> {code}
> This would start from colA:node1 and traverse from colA to colB iteratively
> until it finds colB:node2. The shortestPath function would emit Tuples
> representing the shortest path.
> The optional fq could be used to apply a filter on the traversal.
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