Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/8441#discussion_r38056282
--- Diff: docs/sql-programming-guide.md ---
@@ -870,12 +886,11 @@ saveDF(select(df, "name", "age"),
"namesAndAges.parquet", "parquet")
Save operations can optionally take a `SaveMode`, that specifies how to
handle existing data if
present. It is important to realize that these save modes do not utilize
any locking and are not
-atomic. Thus, it is not safe to have multiple writers attempting to write
to the same location.
-Additionally, when performing a `Overwrite`, the data will be deleted
before writing out the
+atomic. Additionally, when performing a `Overwrite`, the data will be
deleted before writing out the
new data.
<table class="table">
-<tr><th>Scala/Java</th><th>Python</th><th>Meaning</th></tr>
+<tr><th>Scala/Java</th><th>Any Language</th><th>Meaning</th></tr>
--- End diff --
It works in scala too though? I wasn't really sure what to do here. We
could also just delete the other column?
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