zhengruifeng commented on code in PR #41516:
URL: https://github.com/apache/spark/pull/41516#discussion_r1223691672
##########
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:
I don't think so, in that case `spark.emptyDataFrame.select*` is also empty,
and then the results comparison is always true (since both df are empty)
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