presto-hive/src/main/java/io/prestosql/plugin/hive/HiveColumnHandle.java/HiveColumnHandle/equals
class HiveColumnHandle:    @Override
    public boolean equals(Object obj)
    {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        HiveColumnHandle other = (HiveColumnHandle) obj;
        return Objects.equals(this.name, other.name) &&
                Objects.equals(this.hiveColumnIndex, other.hiveColumnIndex) &&
                Objects.equals(this.hiveType, other.hiveType) &&
                this.columnType == other.columnType &&
                Objects.equals(this.comment, other.comment);
    }