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https://issues.apache.org/jira/browse/SOLR-10516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16039989#comment-16039989
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ASF subversion and git services commented on SOLR-10516:
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Commit da03b1e90fd71ebde9770f92fadc6f15b123b3a3 in lucene-solr's branch
refs/heads/branch_6_6 from [~joel.bernstein]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=da03b1e ]
SOLR-10516: Add documention
> Add eval Streaming Expression
> -----------------------------
>
> Key: SOLR-10516
> URL: https://issues.apache.org/jira/browse/SOLR-10516
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Fix For: 6.6, master (7.0)
>
> Attachments: SOLR-10516.patch, SOLR-10516.patch
>
>
> The eval() Streaming Expression reads a single tuple from an underlying
> stream and looks in the expr_s field for an expression to compile and run.
> eval emits the tuples from the expression that it compiles.
> This allows streaming expressions to write streaming expressions and have
> them evaluated.
> Syntax:
> {code}
> eval(expr)
> {code}
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