There is the error on “dgl: tips and tricks”
https://dgraph.io/docs/tips/#count-number-of-connecting-nodes
{
uids(func: has(director.film), first: 1) {
uid
expand(_all_) { u as uid }
}
result(func: uid(u)) {
count(uid)
}
}
{
"errors": [
{
"message": ": Query couldn't be executed",
"extensions": {
"code": "ErrorInvalidRequest"
}
}
],
"data": null
}