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https://issues.apache.org/jira/browse/SOLR-7672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16754413#comment-16754413
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David Smiley commented on SOLR-7672:
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How so [~mkhludnev]? I _wish_ it were so. The recent improvements to nested
docs in Solr have yet to touch the block join queries. In 8.0, I think these
query parsers could assume {{parent:-\_nest_path_:*}} but only if this field is
defined. This approach is taken with the updated child doc transformer.
> 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
> Priority: Major
>
> 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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