@Override
    public boolean equals(Object o) {
        if ( ! super.equals(o)) return false;
        var other = (PredicateQueryItem)o;
        if ( ! this.fieldName.equals(other.fieldName)) return false;
        if ( ! this.features.equals(other.features)) return false;
        if ( ! this.rangeFeatures.equals(other.rangeFeatures)) return false;
        return true;
    }
Returns a mutable collection of range feature entries.
container-search/src/main/java/com/yahoo/prelude/query/PredicateQueryItem.java