[jira] [Commented] (SOLR-7672) introduce implicit _parent_:true

["Mikhail Khludnev (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-7672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15038194#comment-15038194 ] 

Mikhail Khludnev commented on SOLR-7672:
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just an idea for further consideration, when {{q=\{!parent}foo&fl=\*}}, it may imply {{fl=\[child],*}} just to show children by default.

> introduce implicit _parent_:true  
> ----------------------------------
>
>                 Key: SOLR-7672
>                 URL: https://issues.apache.org/jira/browse/SOLR-7672
>             Project: Solr
>          Issue Type: Improvement
>          Components: query parsers, update
>    Affects Versions: 5.2
>            Reporter: Mikhail Khludnev
>            Assignee: Mikhail Khludnev
>             Fix For: 5.4, Trunk
>
>
> Solr provides block join support in non-invasive manner. It turns out, it gives a chance to shoot a leg. As it was advised by [~thetaphi] at SOLR-7606, let AddUpdateCommand add _parent_:true field to the document (not to children). Do it *always* no matter whether it has children or not.    
> Also, introduce default values for for block join qparsers \{!parent *which=\_parent\_:true*} \{!child *of=\_parent\_:true*} (sometimes, I rather want to hide them from the user, because they are misunderstood quite often).  
> Please share your concerns and vote.



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