Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/17719#discussion_r115793754
--- Diff: python/pyspark/sql/readwriter.py ---
@@ -96,14 +96,17 @@ def schema(self, schema):
By specifying the schema here, the underlying data source can skip
the schema
inference step, and thus speed up data loading.
- :param schema: a :class:`pyspark.sql.types.StructType` object
+ :param schema: a :class:`pyspark.sql.types.StructType` object or a
DDL-formatted string
--- End diff --
Could you give an example here to users?
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