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https://issues.apache.org/jira/browse/SOLR-13552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16864829#comment-16864829
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ASF subversion and git services commented on SOLR-13552:
--------------------------------------------------------
Commit d58b8b759010bc26d58dadaddfa8f53d38d8becb in lucene-solr's branch
refs/heads/branch_8x from Joel Bernstein
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=d58b8b7 ]
SOLR-13552: Update CHANGES.txt
> Add recNum Stream Evaluator
> ---------------------------
>
> Key: SOLR-13552
> URL: https://issues.apache.org/jira/browse/SOLR-13552
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Components: streaming expressions
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Minor
> Fix For: 8.2
>
> Attachments: SOLR-13552.patch
>
>
> The *recNum* Stream Evaluator will return the index of the tuple in the
> stream. It is designed to be used with the *select* expression to append the
> index of the tuple to tuples in the stream.
> Syntax:
> {code:java}
> having(select(search(testapp),
> id,
> recNum() as recNum),
> and(gt(recNum, 3), lt(recNum, 6))){code}
> Returns:
> {code:java}
> { "result-set": { "docs": [
> { "recNum": 4, "id": "2e65eac8-7051-4a11-8409-b89e910bfedc" },
> { "recNum": 5, "id": "70edbf04-7dec-4e7f-86bb-71b97e737457" },
> { "EOF": true, "RESPONSE_TIME": 12 } ] } }{code}
>
>
>
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