LuciferYang commented on code in PR #41516:
URL: https://github.com/apache/spark/pull/41516#discussion_r1223159301
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sql/core/src/test/scala/org/apache/spark/sql/DataFrameFunctionsSuite.scala:
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@@ -5570,6 +5570,21 @@ class DataFrameFunctionsSuite extends QueryTest with
SharedSparkSession {
Seq(Row(Seq("b", "a", "c", null)))
)
}
+
+ test("function current_catalog, current_database, current_schema") {
+ val df = Seq((1, 2), (3, 1)).toDF("a", "b")
Review Comment:
nit: can we just use `spark.emptyDataFrame`?
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