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From "Joel Bernstein (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8996) Add Random Streaming Expression
Date Mon, 02 May 2016 13:37:12 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15266619#comment-15266619
] 

Joel Bernstein commented on SOLR-8996:
--------------------------------------

These are the commits that were pushed:
{code}
remote: lucene-solr:branch_6x: SOLR-9027: Pull the TermsEnum once for each segment
remote: lucene-solr:branch_6x: SOLR-9027: Collect the TermContexts in createWeight
remote: lucene-solr:branch_6x: SOLR-9027: GraphTermsQuery optimizations and more explicit
handling of non-caching behavior
remote: lucene-solr:branch_6x: SOLR-8925: Integrate the GraphTermsQuery into the gatherNodes
expression
remote: lucene-solr:branch_6x: SOLR-9027: Add GraphTermsQuery to limit traversal on high frequency
nodes
remote: lucene-solr:branch_6x: SOLR-8918: Corrects usage of a global variable in admin page's
stream.js which was overriding the same variable in cloud.js
remote: lucene-solr:branch_6x: SOLR-8918: Adds Streaming to the admin page under the collections
section
remote: lucene-solr:branch_6x: SOLR-9009: Adds ability to get an Explanation of a Streaming
Expression
remote: lucene-solr:branch_6x: SOLR-8996: Add Random Streaming Expression
remote: lucene-solr:branch_6x: SOLR-8925: Add gatherNodes Streaming Expression to support
breadth first traversals
To https://git-wip-us.apache.org/repos/asf/lucene-solr.git
   f603e15..32f7d04  branch_6x -> branch_6x

{code}

> Add Random Streaming Expression
> -------------------------------
>
>                 Key: SOLR-8996
>                 URL: https://issues.apache.org/jira/browse/SOLR-8996
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Joel Bernstein
>            Assignee: Joel Bernstein
>             Fix For: 6.1
>
>         Attachments: RandomStream.java, SOLR-8996.patch
>
>
> The random Streaming Expression will return a *limited* random stream of Tuples that
match a query. This will be useful in many different scenarios where random data sets are
needed.
> Proposed syntax:
> {code}
> random(baskets, q="productID:productX", rows="100", fl="basketID") 
> {code}
> The sample code above will query the *baskets* collection and return 100 random *basketID's*
where the productID is productX.
> The underlying implementation will rely on Solr's random field type.



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