// Cannot implicitly shard accessed collections because of following errmsg: A single
// update/delete on a sharded collection must contain an exact match on _id or contain the shard
// key.
// @tags: [assumes_unsharded_collection]

t = db.updateb;
t.drop();

t.update({"x.y": 2}, {$inc: {a: 7}}, true);

correct = {
    a: 7,
    x: {y: 2}
};
got = t.findOne();
delete got._id;
assert.docEq(correct, got, "A");