presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/metadata/ShardNodes.java/ShardNodes/equals
class ShardNodes:    @Override
    public boolean equals(Object obj)
    {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        ShardNodes other = (ShardNodes) obj;
        return Objects.equals(this.shardUuid, other.shardUuid) &&
                Objects.equals(this.nodeIdentifiers, other.nodeIdentifiers);
    }