我具有如下所示的数据框架构：
我无法将其展平为正确的格式。我需要一些帮助来简化复杂的架构。
我尝试使用某些功能，但出现以下错误：
org.apache.spark.sql.AnalysisException: Only one generator allowed per select clause but found 2: generatorouter(explode(RetailTransaction.LineItem AS LineItem )), generatorouter(explode(RetailTransaction.Total AS总计));
我能够展平到结构类型，但是在执行数组类型时却遇到了上述问题。
`> root
|-- BusinessDayDate: string (nullable = true)
|-- ControlTransaction: struct (nullable = true)
| |-- OperatorSignOff: struct (nullable = true)
| | |-- CloseBusinessDayDate: string (nullable = true)
| | |-- CloseTransactionSequenceNumber: long (nullable = true)
| | |-- EndDateTimestamp: string (nullable = true)
| | |-- OpenBusinessDayDate: string (nullable = true)
| | |-- OpenTransactionSequenceNumber: long (nullable = true)
| | |-- StartDateTimestamp: string (nullable = true)
| |-- ReasonCode: string (nullable = true)
| |-- _Version: double (nullable = true)
|-- CurrencyCode: string (nullable = true)
|-- EndDateTime: string (nullable = true)
|-- OperatorID: struct (nullable = true)
| |-- _OperatorName: string (nullable = true)
| |-- _VALUE: long (nullable = true)
|-- RetailStoreID: long (nullable = true)
|-- RetailTransaction: struct (nullable = true)
| |-- ItemCount: long (nullable = true)
| |-- LineItem: array (nullable = true)
| | |-- element: struct (containsNull = true)
| | | |-- Sale: struct (nullable = true)
| | | | |-- Description: string (nullable = true)
| | | | |-- DiscountAmount: double (nullable = true)
| | | | |-- ExtendedAmount: double (nullable = true)
| | | | |-- ExtendedDiscountAmount: double (nullable = true)
| | | | |-- ItemID: long (nullable = true)
| | | | |-- Itemizers: struct (nullable = true)
| | | | | |-- _FoodStampable: boolean (nullable = true)
| | | | | |-- _Itemizer6: boolean (nullable = true)
| | | | | |-- _Itemizer8: boolean (nullable = true)
| | | | | |-- _Tax1: boolean (nullable = true)
| | | | | |-- _VALUE: long (nullable = true)
| | | | |-- MerchandiseHierarchy: struct (nullable = true)
| | | | | |-- _DepartmentDescription: string (nullable = true)
| | | | | |-- _Level: string (nullable = true)
| | | | | |-- _VALUE: long (nullable = true)
| | | | |-- OperatorSequence: long (nullable = true)
| | | | |-- POSIdentity: struct (nullable = true)
| | | | | |-- POSItemID: long (nullable = true)
| | | | | |-- Qualifier: long (nullable = true)
| | | | | |-- _POSIDType: string (nullable = true)
| | | | |-- Quantity: double (nullable = true)
| | | | |-- RegularSalesUnitPrice: double (nullable = true)
| | | | |-- ReportCode: long (nullable = true)
| | | | |-- _ItemType: string (nullable = true)
| | | |-- SequenceNumber: long (nullable = true)
| | | |-- Tax: struct (nullable = true)
| | | | |-- Amount: double (nullable = true)
| | | | |-- Percent: double (nullable = true)
| | | | |-- Reason: string (nullable = true)
| | | | |-- TaxableAmount: double (nullable = true)
| | | | |-- _TaxDescription: string (nullable = true)
| | | | |-- _TaxID: long (nullable = true)
| | | |-- Tender: struct (nullable = true)
| | | | |-- Amount: double (nullable = true)
| | | | |-- Authorization: struct (nullable = true)
| | | | | |-- AuthorizationCode: string (nullable = true)
| | | | | |-- AuthorizationDateTime: string (nullable = true)
| | | | | |-- ReferenceNumber: long (nullable = true)
| | | | | |-- RequestedAmount: double (nullable = true)
| | | | | |-- _ElectronicSignature: boolean (nullable = true)
| | | | | |-- _HostAuthorized: boolean (nullable = true)
| | | | |-- OperatorSequence: long (nullable = true)
| | | | |-- TenderID: long (nullable = true)
| | | | |-- _TenderDescription: string (nullable = true)
| | | | |-- _TenderType: string (nullable = true)
| | | | |-- _TypeCode: string (nullable = true)
| | | |-- _EntryMethod: string (nullable = true)
| | | |-- _weightItem: boolean (nullable = true)
| |-- PerformanceMetrics: struct (nullable = true)
| | |-- IdleTime: long (nullable = true)
| | |-- RingTime: long (nullable = true)
| | |-- TenderTime: long (nullable = true)
| |-- ReceiptDateTime: string (nullable = true)
| |-- Total: array (nullable = true)
| | |-- element: struct (containsNull = true)
| | | |-- _TotalType: string (nullable = true)
| | | |-- _VALUE: double (nullable = true)
| |-- TransactionCount: long (nullable = true)
| |-- _Version: double (nullable = true)
|-- SequenceNumber: long (nullable = true)
|-- WorkstationID: long (nullable = true)`
预先感谢 Seetharam