Github user maropu commented on a diff in the pull request: https://github.com/apache/spark/pull/20214#discussion_r160613267 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala --- @@ -1255,6 +1255,34 @@ class DataFrameSuite extends QueryTest with SharedSQLContext { assert(testData.select($"*").showString(1, vertical = true) === expectedAnswer) } + test("SPARK-XXXXX Cast rows to strings in showString") { --- End diff -- oh... thx..
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