Spark-SQL 查看执行计划API

举个例子： scala>spark.sql(“select count(1) as nums from gdm.gdm_m03_glb_item_sku_da where dt = ‘2020-06-08’”).explain(true) 在Spark.sql()方法后加 explain,入参为true 返回类型为Unit // 解析逻辑执行计划 == Parsed Logical Plan ==

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