Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/22817#discussion_r228731772
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
---
@@ -2578,4 +2578,12 @@ class DataFrameSuite extends QueryTest with
SharedSQLContext {
Row ("abc", 1))
}
}
+
+ test("SPARK-25816 ResolveReferences works with nested extractors") {
+ val df0 = Seq((1, Map(1 -> "a")), (2, Map(2 -> "b"))).toDF("1", "2")
--- End diff --
can we use a normal name like `i`, `j` instead of 1, 2?
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