Under what scenarios does Dgraph return an array in place of a string?

Users Dgraph
7

Btw, for future readers: removing the dgraph.type set in the preCommit function (in the gist) didn’t change the result – the query still sometimes returns a string and sometimes returns an array.

@MichelDiz I may have found a workaround, and I think this might mean there’s a bug. If I change my queries to:

query {
	foo(func: type(Foo)) {
		uid
		bar {
			uid <-- Added this
			bar_name
		}
	}
}

the bar_name result in Pre-Commit is always a string:

Pre-commit
{
  "foo": [
    {
      "uid": "0x19cb5b",
      "bar": {
        "uid": "0x19cb59",
        "bar_name": "bar 3"
      }
    }
  ]
}

You’ll see a similar result if you remove bar_name entirely and just query bar { uid } or bar { count(bar_name) } – basically any time you specify only one predicate or function in the braces.