Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/12817#discussion_r61679408
--- Diff: python/pyspark/sql/readwriter.py ---
@@ -663,6 +700,18 @@ def csv(self, path, mode=None, compression=None):
known case-insensitive shorten names (none,
bzip2, gzip, lz4,
snappy and deflate).
+ You can set the following CSV-specific options to deal with CSV
files:
+ * ``sep`` or ``delimiter`` (default ``,``): sets the single
character as a delimiter \
+ for each field and value.
+ * ``encoding`` or ``charset`` (default ``UTF-8``): decodes the
CSV files by the given \
+ encoding type.
+ * ``quote`` (default ``"``): sets the single character used
for escaping \
+ quoted values where the delimiter can be part of the value.
+ * ``escape`` (default ``\``): sets the single character used
for escaping quotes \
+ inside an already quoted value.
+ * ``header`` (default ``false``): writes the names of columns
as the first line.
+ * ``nullValue`` (default empty string): sets the string
representation of a null value.
--- End diff --
I am less sure that `empty string` is okay.
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