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我有一個數據框表示圖的邊;這是模式:Scala-Spark:將數據幀轉換爲RDD [Edge]
root |-- src: string (nullable = true)
|-- dst: string (nullable = true)
|-- relationship: struct (nullable = false)
| |-- business_id: string (nullable = true)
| |-- normalized_influence: double (nullable = true)
我想將其轉換爲RDD [邊緣]與預凝膠API和我困難的工作是對屬性的「關係」。如何轉換它?