Math >= seems to behave like >

[cajus]

• What version of Dgraph are you using?
  Docker image of v1.0.5

• Have you tried reproducing the issue with latest release?
  It's the latest release. Not tested with git HEAD.

• What is the hardware spec (RAM, OS)?
  Running in a local minikube on Fedora. I don't think that RAM matters in the current setup as there are only a couple of entries in the test DB.

• Steps to reproduce the issue (command/config used to run Dgraph).
  dgraph server --my=$(hostname -f):7080 --lru_mb 1024 --zero dgraph-zero-0.dgraph-zero.default.svc.cluster.local:5080

• Expected behaviour and actual result.

The schema:

    container: uid @reverse .
    user: uid .
    device: uid .

The contents:

    _:root <name> "/" .
    _:root <container> _:c .

    _:c <name> "Foobar" .

The non @normalize query:

{
  q(func: eq(name, "/")) {
    containerCount as count(container)
    userCount as count(user)
    deviceCount as count(device)
    hasChildren: math(containerCount + userCount + deviceCount >= 1)
  }
}

The result (stripped):

 "q": [
      {
        "count(container)": 1,
        "count(user)": 0,
        "count(device)": 0,
        "hasChildren": false
      }
    ]

As the containerCount is 1 and the others are 0, I'd expect hasChildren to be true in case of the given query. Please correct me if this expectation is wrong for some reason I don't understand yet :-)

Using math(containerCount + userCount + deviceCount > 0) results in true - which is expected.

[pawanrawal]

PR: #2365