Spark DataFrame:value $ is not a member of StringContext df.select($"name", $"age" + 1).show()
錯誤信息 Error:(29, 15) value $ is not a member of StringContext
df.select($"name", $"age" + 1).show() 解決方案 ··· //在建立SparkSession以後 import sparkSession.implicits._ ···web
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相關文章
- 1. SwiftUI ContentView_Previews is not a member type of SceneDelegate
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