pyspark.sql.functions.
to_csv
Converts a column containing a StructType into a CSV string. Throws an exception, in the case of an unsupported type.
StructType
col – name of column containing a struct.
options – options to control converting. accepts the same options as the CSV datasource.
>>> from pyspark.sql import Row >>> data = [(1, Row(name='Alice', age=2))] >>> df = spark.createDataFrame(data, ("key", "value")) >>> df.select(to_csv(df.value).alias("csv")).collect() [Row(csv='2,Alice')]
New in version 3.0.