@Override
    public String toString() {
        return super.toString() + " [fasthit, globalid: " + new GlobalId(globalId).toString() + ", partId: " +
               partId + ", distributionkey: " + distributionKey + "]";
    }
Returns whether any fields are present <b>in the field map in the parent hit</b>
container-search/src/main/java/com/yahoo/prelude/fastsearch/FastHit.java