我有一个xml文档,如下所示:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Position>
<Search>
<Location>
<Region>OH</Region>
<Country>us</Country>
<Longitude>-816071</Longitude>
<Latitude>415051</Latitude>
</Location>
</Search>
</Position>
我把它读成数据帧:
df = sqlContext.read.format('com.databricks.spark.xml').options(rowTag='Position').load('1.xml')
我可以看到1栏:
df.columns
['Search']
print df.select("Search")
DataFrame[Search: struct<Location:struct<Country:string,Latitude:bigint,Longitude:bigint,Region:string>>]
如何访问嵌套列。 ex Location.Region?
答案 0 :(得分:7)
您可以执行以下操作:
df.select("Search.Location.*").show()
输出:
+-------+--------+---------+------+
|Country|Latitude|Longitude|Region|
+-------+--------+---------+------+
| us| 415051| -816071| OH|
+-------+--------+---------+------+