摘要: 连接spark-shell 指定行数生成数据 scala>spark.range(50000000L).selectExpr("id % 10000 as a","id % 10000 as b").write.saveAsTable("t1") scala>spark.range(40000000 阅读全文
posted @ 2021-04-20 15:18 七彩木兰 阅读(280) 评论(0) 推荐(0) 编辑