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Posted to issues@lucene.apache.org by "David Smiley (Jira)" <ji...@apache.org> on 2021/01/05 20:32:00 UTC

[jira] [Created] (SOLR-15069) child doc transformer should make parentFilter obsolete

David Smiley created SOLR-15069:
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             Summary: child doc transformer should make parentFilter obsolete
                 Key: SOLR-15069
                 URL: https://issues.apache.org/jira/browse/SOLR-15069
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: David Smiley
            Assignee: David Smiley


The parentFilter param to \[child] was once required, and then made only optional if you have a \_nest_path_ field, but I think it can be optional (perhaps obsolete) altogether.  All we have to do is grab the uniqueKey field from the document to be transformed, look this up in the \_root_ field, and you'll get the internal Lucene docId of the first child doc.  No problem, and quick.



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