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https://issues.apache.org/jira/browse/SOLR-12122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16405627#comment-16405627
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Joel Bernstein edited comment on SOLR-12122 at 3/20/18 12:32 AM:
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Point taken on the comments. No more new expressions are going in until a
refactoring takes place. I will add javadoc as part of this refactoring. The
point of the refactoring is to make it easier for other people to contribute.
There is also a very large documentation effort underway to provide a user
guide for the Math Expressions. You can the see the work in progress here:
[https://github.com/joel-bernstein/lucene-solr/blob/math_expressions_documentation/solr/solr-ref-guide/src/math-expressions.adoc]
There is a vast amount of functionality now in Streaming Expressions. My main
focus for the 7.4 release is refactoring and documenting.
was (Author: joel.bernstein):
Point taken on the comments. No more new expressions are going in until a
refactoring takes place. I will add javadoc as part of this refactoring. The
point of the refactoring is to make it easier for other people to contribute.
There is also a very large documentation effort underway to provide a user
guide for the Math Expressions. You can the see the work in progress here:
[https://github.com/joel-bernstein/lucene-solr/blob/math_expressions_documentation/solr/solr-ref-guide/src/math-expressions.adoc]
There is vast amount of functionality now in Streaming Expressions. My main
focus for the 7.4 release is refactoring and documenting.
> nodes expression should support multiValued walk target
> -------------------------------------------------------
>
> Key: SOLR-12122
> URL: https://issues.apache.org/jira/browse/SOLR-12122
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: streaming expressions
> Reporter: David Smiley
> Priority: Major
>
> The {{nodes}} streaming expression has a {{walk}} argument that articulates a
> pair of Solr fields of the form {{traversalFrom->traversalTo}}. It assumed
> that they are *not* multiValued. It _appears_ not difficult to add
> multiValued support to traversalTo; that's what this issue is about.
> See
> http://lucene.472066.n3.nabble.com/Using-multi-valued-field-in-solr-cloud-Graph-Traversal-Query-td4324379.html
> Note: {{gatherNodes}} appears to be the older name which is still supported.
> It's more commonly known as {{nodes}}. graph-traversal.adoc documents it
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