[ https://issues.apache.org/jira/browse/DRILL-19?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13550632#comment-13550632 ] 

Jacques Nadeau commented on DRILL-19:
-------------------------------------

Nulls -> I'll skip nulls for now then

Array type -> I see, currently all arrays have schema in place assuming its heteregenous. I will add a field so it represents all value types in the array where they have all the same types.

Map -> Sounds good.

Map & Parent -> The top level object currently is a map. Currently schema fields have reference to its children (if present) instead of the other way around. I can also have a reference to its parent if that helps traversing.

Key -> Not sure what you mean by this, currently the "key" is the fullFieldName String, as you can see from my print out. Maybe you can give me an example?
                
> Build a JSON scanner that does schema discovery
> -----------------------------------------------
>
>                 Key: DRILL-19
>                 URL: https://issues.apache.org/jira/browse/DRILL-19
>             Project: Apache Drill
>          Issue Type: New Feature
>            Reporter: Jacques Nadeau
>            Assignee: Timothy Chen
>


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