Database

[{"name":"moses","display":[{"SQL commands that triggered the attack:":""},{"Timetsamp":"Query:"},[[{"ISODate":"2021-03-14T17:14:58.064Z"},"EXECUTE IMMEDIATE"],[{"ISODate":"2021-03-14T17:14:58.064Z"},"EXECUTE IMMEDIATE"],[{"ISODate":"2021-03-14T17:14:58.064Z"},"EXECUTE IMMEDIATE"]]]}]

Query

db.collection.aggregate([{"$addFields":{display:{$reduce:{input:{$map:{input:"$display",as:"dis",in:{$cond:[{"$isArray":"$$dis"},{$map:{input:"$$dis",as:"deepdis",in:{"$arrayToObject":[[{k:{"$arrayElemAt":[{$map:{input:{"$objectToArray":{"$arrayElemAt":["$$deepdis",0]}},as:"dd",in:"$$dd.v"}},0]},v:{"$arrayElemAt":["$$deepdis",1]}}]]}}},"$$dis"]}}},initialValue:[],in:{"$concatArrays":["$$value",{$cond:[{"$isArray":"$$this"},"$$this",["$$this"]]}]}}}}}])

Result