df=spark.read.json("E:/**/people.json")
df1=df.select(df['age'],df['name'])
df2=df.select(df['age'],df['weigh'])
df1.unionAll(df2).show()
spark dataframe笔记 -- 对两个df实现行的拼接
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转载自blog.csdn.net/leitouguan8655/article/details/88696891
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