pyspark.sql.DataFrameWriter.save

DataFrameWriter.save(path=None, format=None, mode=None, partitionBy=None, **options)[source]

Saves the contents of the DataFrame to a data source.

The data source is specified by the format and a set of options. If format is not specified, the default data source configured by spark.sql.sources.default will be used.

New in version 1.4.0.

Parameters
pathstr, optional

the path in a Hadoop supported file system

formatstr, optional

the format used to save

modestr, optional

specifies the behavior of the save operation when data already exists.

  • append: Append contents of this DataFrame to existing data.

  • overwrite: Overwrite existing data.

  • ignore: Silently ignore this operation if data already exists.

  • error or errorifexists (default case): Throw an exception if data already exists.

partitionBylist, optional

names of partitioning columns

**optionsdict

all other string options

Examples

>>> df.write.mode("append").save(os.path.join(tempfile.mkdtemp(), 'data'))
pyspark.sql.DataFrameWriter.partitionBy pyspark.sql.DataFrameWriter.saveAsTable