Hello,

I would like to push down the ORDER BY to the MongoDB database itself ( see
https://issues.apache.org/jira/browse/DRILL-3165 )

I have looked into the Optimizer, Record Reader and Scan, I do not see how
I can get the "Order by" clause information from the context.

I see how the filters and projection are used.

Any clue?


PS: another side question about Projection & MongoDB:
   Any reason why the _id is by default removed from the "select * from
collection" ?



Regards
Tug
@tgrall

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