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想知道過濾器是否將數據轉換爲元組?例如在Spark中,過濾器函數是否將數據轉換爲元組?
val filesLines = sc.textFile("file.txt")
val split_lines = filesLines.map(_.split(";"))
val filteredData = split_lines.filter(x => x(4)=="Blue")
//如果我們想要映射數據,它將使用元組格式即。 x._3或X(3)
val blueRecords = filteredData.map(x => x._1, x._2)
OR
val blueRecords = filteredData.map(x => x(0), x(1))