Github user ueshin commented on a diff in the pull request:
https://github.com/apache/spark/pull/22013#discussion_r210161936
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/DataFrameFunctionsSuite.scala ---
@@ -2302,6 +2302,97 @@ class DataFrameFunctionsSuite extends QueryTest with
SharedSQLContext {
assert(ex5.getMessage.contains("function map_zip_with does not support
ordering on type map"))
}
+ test("transform keys function - test various primitive data types
combinations") {
+ val dfExample1 = Seq(
+ Map[Int, Int](1 -> 1, 9 -> 9, 8 -> 8, 7 -> 7)
+ ).toDF("i")
+
+ val dfExample2 = Seq(
+ Map[Int, Double](1 -> 1.0E0, 2 -> 1.4E0, 3 -> 1.7E0)
--- End diff --
Do we need `E0`?
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