presto-kafka/src/main/java/io/prestosql/plugin/kafka/KafkaInternalFieldDescription.java/KafkaInternalFieldDescription/forColumnName
class KafkaInternalFieldDescription:    public static KafkaInternalFieldDescription forColumnName(String columnName)
    {
        KafkaInternalFieldDescription description = BY_COLUMN_NAME.get(columnName);
        checkArgument(description != null, "Unknown internal column name %s", columnName);
        return description;
    }