pyspark:distinct和dropDuplicates区别 技术标签: # Spark文章目录 SPARK Distinct Function Spark dropDuplicates() Function distinct数据去重 使用distinct:返回当前DataFrame中不重复的Row记录。该方法和接下来的dropDuplicates()方法不传入指定字段时的结果相同。 dropDuplicates:根据指定字段去重 跟distinct方法不同的是,此...
1. Differences Between PySpark distinct vs dropDuplicates The maindifference between distinct() vs dropDuplicates() functions in PySparkare the former is used to select distinct rows from all columns of the DataFrame and the latter is usedselect distinct on selected columns. Let’s create a DataFr...
PySparkdistinct()transformation is used to drop/remove the duplicate rows (all columns) from DataFrame anddropDuplicates()is used to drop rows based on selected (one or multiple) columns.distinct()anddropDuplicates()returns a new DataFrame. In this article, you will learn how to use distinct()...