在火花标量中将(a1 | a2 | a3 b1 | b2 | b3)转换为((a1,a2,a3),(b1,b2,b3))。
答案 0 :(得分:0)
(
和后缀)
,
和前缀(
和后缀)
串联import org.apache.spark.sql.functions._
object ParseAString {
def main(args: Array[String]): Unit = {
val spark = Constant.getSparkSess
import spark.implicits._
val inputStr = "a1|a2|a3 b1|b2|b3".split(" ").toSeq.toDF
val result = inputStr
.select( concat(lit("("),regexp_replace($"value","\\|",","),lit(")") ) )
.map(row => {
row.getString(0)
})
.collect().mkString(",")
println(s"(${result})")
}
}