asNondeterministic (UserDefined 関数)

UserDefinedFunctionを非決定的に更新します。

構文

asNondeterministic()

返品

UserDefinedFunction

例示

import random
from pyspark.sql.functions import udf
from pyspark.sql.types import IntegerType

random_udf = udf(lambda: random.randint(0, 100), IntegerType()).asNondeterministic()
new_random_udf = spark.udf.register("random_udf", random_udf)
spark.sql("SELECT random_udf()").collect()
# [Row(random_udf()=82)]