Github user adrian-wang commented on a diff in the pull request:
https://github.com/apache/spark/pull/10964#discussion_r51392316
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala
---
@@ -2046,6 +2046,15 @@ class SQLQuerySuite extends QueryTest with
SharedSQLContext {
)
}
+ test("SPARK-13056: Null in map value causes NPE") {
+ val df = Seq(1 -> Map("abc" -> "somestring", "cba" ->
null)).toDF("key", "value")
+ withTempTable("maptest") {
+ df.registerTempTable("maptest")
+ checkAnswer(sql("SELECT value['abc'] FROM maptest where key = 1"),
Row("somestring"))
--- End diff --
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