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https://issues.apache.org/jira/browse/SOLR-12221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16437660#comment-16437660
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ASF subversion and git services commented on SOLR-12221:
--------------------------------------------------------

Commit 89ad4128bea7601219eac1d96c99597a78e9d30b in lucene-solr's branch 
refs/heads/branch_7x from [~joel.bernstein]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=89ad412 ]

SOLR-12221: Add valueAt Stream Evaluator


> Add valueAt Stream Evaluator
> ----------------------------
>
>                 Key: SOLR-12221
>                 URL: https://issues.apache.org/jira/browse/SOLR-12221
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Joel Bernstein
>            Assignee: Joel Bernstein
>            Priority: Major
>             Fix For: 7.4
>
>         Attachments: SOLR-12221.patch
>
>
> The *valueAt* Stream Evaluator returns the value at a specific index of an 
> array or the value of a specific row and column of a matrix.
> Sample syntax for an array:
> {code:java}
> let(a=array(1, 2, 3),
>     b=valueAt(a, 2)){code}



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