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文章浏览阅读701次。json数据[{"name":"张三" ,"age":18} ,{"name":"李四" ,"age":15}]代码编写import org.apache.spark.sql.expressions.{MutableAggregationBuffer, UserDefinedAggregateFunction}import org.apache.spark.sql.types._import org.apache.spark.sql.{Row, SparkSession}import sca_spark scala如何自定义函数
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