David Smiley commented on SOLR-12768:

I agree that root need not be stored by default since I think we don't use it's 
stored value? Do we use it _anywhere_? It's existence is an implementation 
detail and it's a shame IMO to expose it with {{fl=*}}.  As an experiment I'll 
set it to false and see what happens with the tests.

> Determine how _nest_path_ should be analyzed to support various use-cases
> -------------------------------------------------------------------------
>                 Key: SOLR-12768
>                 URL: https://issues.apache.org/jira/browse/SOLR-12768
>             Project: Solr
>          Issue Type: Sub-task
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: David Smiley
>            Assignee: David Smiley
>            Priority: Blocker
>             Fix For: 8.0
>         Attachments: SOLR-12768.patch, SOLR-12768.patch, SOLR-12768.patch
>          Time Spent: 2h
>  Remaining Estimate: 0h
> We know we need {{\_nest\_path\_}} in the schema for the new nested documents 
> support, and we loosely know what goes in it.  From a DocValues perspective, 
> we've got it down; though we might tweak it.  From an indexing (text 
> analysis) perspective, we're not quite sure yet, though we've got a test 
> schema, {{schema-nest.xml}} with a decent shot at it.  Ultimately, how we 
> index it will depend on the query/filter use-cases we need to support.  So 
> we'll review some of them here.
> TBD: Not sure if the outcome of this task is just a "decide" or wether we 
> also potentially add a few tests for some of these cases, and/or if we also 
> add a FieldType to make declaring it as easy as a one-liner.  A FieldType 
> would have other benefits too once we're ready to make querying on the path 
> easier.

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