您可以选择 data.bar.baz as bar.baz:
df.show()
+-------+
| data|
+-------+
|[3,[2]]|
+-------+
df.printSchema()
root
|-- data: struct (nullable = false)
| |-- foo: long (nullable = true)
| |-- bar: struct (nullable = false)
| | |-- baz: long (nullable = true)
In pyspark:
import pyspark.sql.functions as F
df.select(F.col("data.foo").alias("foo"), F.col("data.bar.baz").alias("bar.baz")).show()
+---+-------+
|foo|bar.baz|
+---+-------+
| 3| 2|
+---+-------+
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