Github user MaxGekk commented on a diff in the pull request:
https://github.com/apache/spark/pull/23173#discussion_r237633755
--- 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")
+ df1.printSchema
+ df1.write.format("csv").option("header",
true).save(path.getAbsolutePath)
+ val df2 = spark.read.format("csv").option("header",
true).load(path.getAbsolutePath)
+ df2.printSchema
--- End diff --
Please, remove this.
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