pyspark.sql.functions.to_csv¶

pyspark.sql.functions.to_csv(col, options={})[source]¶

Converts a column containing a StructType into a CSV string. Throws an exception, in the case of an unsupported type.

New in version 3.0.0.

Parameters

colColumn or str: name of column containing a struct.
options: dict, optional: options to control converting. accepts the same options as the CSV datasource.

Examples

>>> from pyspark.sql import Row
>>> data = [(1, Row(age=2, name='Alice'))]
>>> df = spark.createDataFrame(data, ("key", "value"))
>>> df.select(to_csv(df.value).alias("csv")).collect()
[Row(csv='2,Alice')]

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