Github user koertkuipers commented on a diff in the pull request:
https://github.com/apache/spark/pull/23173#discussion_r237687091
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/csv/CSVSuite.scala
---
@@ -1987,6 +1987,18 @@ class CSVSuite extends QueryTest with
SharedSQLContext with SQLTestUtils with Te
assert(errMsg2.contains("'lineSep' can contain only 1 character"))
}
+ test("SPARK-26208: write and read empty data to csv file with header") {
+ withTempPath { path =>
+ val df1 = Seq.empty[(String, String)].toDF("x", "y")
--- End diff --
i can do that, but i think when i write it out and read it back in it will
come back in as 1 partition (one part file with header) because of SPARK-23271.
is that worth checking for?
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