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From "Hoss Man (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SOLR-8962) Add sort Streaming Expression
Date Mon, 09 May 2016 23:14:13 GMT

     [ https://issues.apache.org/jira/browse/SOLR-8962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hoss Man resolved SOLR-8962.
----------------------------
    Resolution: Fixed

> Add sort Streaming Expression
> -----------------------------
>
>                 Key: SOLR-8962
>                 URL: https://issues.apache.org/jira/browse/SOLR-8962
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Joel Bernstein
>            Assignee: Dennis Gove
>            Priority: Critical
>             Fix For: 6.1, master (7.0)
>
>         Attachments: SOLR-8962.patch, SOLR-8962.patch
>
>
> The sort Streaming Expression does an in memory sort of the Tuples returned by it's underlying
stream. This is intended to be used for sorting sets gathered during local graph traversals.
This will make it easy to gather sets during a traversal and use all of the sort based set
operations (merge, innerJoin, outerJoin, reduce, complement, intersect). 
> This will be particularly useful with the gatherNodes expression (SOLR-8925). Sample
syntax:
> {code}
> intersect(
>        sort(gatherNodes(...), "fieldA asc"),
>        sort(gatherNodes(...), "fieldA asc"),
>        on)
> {code}



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