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