Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/22759#discussion_r232441937
--- Diff: docs/sql-programming-guide.md ---
@@ -706,7 +706,7 @@ data across a fixed number of buckets and can be used
when a number of unique va
[Parquet](http://parquet.io) is a columnar format that is supported by
many other data processing systems.
Spark SQL provides support for both reading and writing Parquet files that
automatically preserves the schema
-of the original data. When writing Parquet files, all columns are
automatically converted to be nullable for
+of the original data. When reading Parquet files, all columns are
automatically converted to be nullable for
--- End diff --
This file has been re-org . Could you merge the latest master?
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