HyukjinKwon commented on a change in pull request #33672:
URL: https://github.com/apache/spark/pull/33672#discussion_r684865267
##########
File path: sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
##########
@@ -2943,6 +2943,34 @@ class DataFrameSuite extends QueryTest
.withSequenceColumn("default_index").collect().map(_.getLong(0))
assert(ids.toSet === Range(0, 10).toSet)
}
+
+ test("SPARK-35320 DataFrame read in Json format should fail if the schema
provided " +
+ "by the user contains a MapType with a key type different of StringType") {
+
+ Seq((MapType(IntegerType, StringType), """{"1": "test"}"""),
+ (StructType(Seq(StructField("test", MapType(IntegerType, StringType)))),
+ """"test": {"1": "test"}"""),
+ (ArrayType(MapType(IntegerType, StringType)), """[{"1": "test"}]"""),
+ (MapType(StringType, MapType(IntegerType, StringType)), """{"key": {"1"
: "test"}}""")
Review comment:
```suggestion
Seq(
(MapType(IntegerType, StringType), """{"1": "test"}"""),
(StructType(Seq(StructField("test", MapType(IntegerType,
StringType)))),
""""test": {"1": "test"}"""),
(ArrayType(MapType(IntegerType, StringType)), """[{"1": "test"}]"""),
(MapType(StringType, MapType(IntegerType, StringType)), """{"key":
{"1" : "test"}}""")
```
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