Github user dongjoon-hyun commented on a diff in the pull request: https://github.com/apache/spark/pull/20266#discussion_r161599692 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala --- @@ -2773,4 +2773,22 @@ class SQLQuerySuite extends QueryTest with SharedSQLContext { } } } + + Seq("orc", "parquet", "csv", "json").foreach { format => + test(s"Write and read back unicode schema - $format") { --- End diff -- +1. That's a best idea. I'll update like that.
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