[Spark] Pyspark 간단한 StructType 사용하는 방법

data = {
	'category': 'category_1',
	'id': 'id_1'
    }

df = spark.createDataFrame([data])

df.printSchema()
df.show()

schema = StructType([
        StructField('category', StringType()),
        StructField('id', StringType())
    ])

df = spark.createDataFrame([data], schema)

df.printSchema()
df.show()