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MongoDB treats the literals as projection flags, valid only in the _______ stage.

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MongoDB treats the literals as projection flags, valid only in the _______ stage.

(a) $project

(b) $gmap

(c) $match

(d) None of the mentioned

This question was addressed to me in quiz.

My query is from Aggregation Mechanics in section Aggregation Concepts and Aggregation Mechanics of MongoDB

1 Answer

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Best answer
The correct option is (a) $project

The explanation is: Projection flags can be 1 or true to include the field.

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