Since 3.2, we can use $arrayElemAt
to get the first element in an array
db.my_collection.aggregate([
{ $project: {
resp : { $arrayElemAt: ['$my_field',0] }
}}
])
Since 3.2, we can use $arrayElemAt
to get the first element in an array
db.my_collection.aggregate([
{ $project: {
resp : { $arrayElemAt: ['$my_field',0] }
}}
])