[{"name":"ROOT","name_finished_good":"ROOT","name_child":"P1"},{"name":"P1","name_finished_good":"ROOT","name_child":"P2"},{"name":"P2","name_finished_good":"ROOT","name_child":"P3"},{"name":"P2","name_finished_good":"ROOT","name_child":"S1"},{"name":"P3","name_finished_good":"ROOT","name_child":"P4"},{"name":"P4","name_finished_good":"ROOT","name_child":"P5"},{"name":"P5","name_finished_good":"ROOT","name_child":"S1"},{"name":"P5","name_finished_good":"ROOT","name_child":"P6"},{"name":"S1","name_finished_good":"ROOT","name_child":"S2"},{"name":"S2","name_finished_good":"ROOT","name_child":"S3"}]

db.collection.aggregate([{"$match":{"name":"ROOT"}},{"$graphLookup":{"from":"collection","startWith":"$name_child","connectFromField":"name_child","connectToField":"name","as":"children","depthField":"level","restrictSearchWithMatch":{"name_finished_good":"ROOT"}}}])