[ 
https://issues.apache.org/jira/browse/SOLR-5211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16698432#comment-16698432
 ] 

ASF subversion and git services commented on SOLR-5211:
-------------------------------------------------------

Commit a346ba0d3c371ec9f314c21fe67afeca64846cf0 in lucene-solr's branch 
refs/heads/master from Moshe
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=a346ba0 ]

SOLR-5211:  Always populate _root_ (if defined).
And, small refactor: Clarified how _version_ is transferred from root to 
children.


> updating parent as childless makes old children orphans
> -------------------------------------------------------
>
>                 Key: SOLR-5211
>                 URL: https://issues.apache.org/jira/browse/SOLR-5211
>             Project: Solr
>          Issue Type: Sub-task
>          Components: update
>    Affects Versions: 4.5, 6.0
>            Reporter: Mikhail Khludnev
>            Assignee: David Smiley
>            Priority: Blocker
>             Fix For: master (8.0)
>
>         Attachments: SOLR-5211.patch, SOLR-5211.patch, SOLR-5211.patch, 
> SOLR-5211.patch
>
>          Time Spent: 3h 20m
>  Remaining Estimate: 0h
>
> if I have parent with children in the index, I can send update omitting 
> children. as a result old children become orphaned. 
> I suppose separate \_root_ fields makes much trouble. I propose to extend 
> notion of uniqueKey, and let it spans across blocks that makes updates 
> unambiguous.  
> WDYT? Do you like to see a test proves this issue?



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