Github user MaxGekk commented on a diff in the pull request:
https://github.com/apache/spark/pull/22237#discussion_r212925256
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/JsonFunctionsSuite.scala ---
@@ -469,4 +470,23 @@ class JsonFunctionsSuite extends QueryTest with
SharedSQLContext {
checkAnswer(sql("""select json[0] from jsonTable"""), Seq(Row(null)))
}
+
+ test("from_json invalid json - check modes") {
+ val df = Seq("""{"a" 1}""", """{"a": 2}""").toDS()
+ val schema = new StructType().add("a", IntegerType)
+
+ checkAnswer(
+ df.select(from_json($"value", schema, Map("mode" -> "PERMISSIVE"))),
+ Row(Row(null)) :: Row(Row(2)) :: Nil)
+
+ val exceptionOne = intercept[SparkException] {
+ df.select(from_json($"value", schema, Map("mode" ->
"FAILFAST"))).collect()
--- End diff --
Behavior of `JsonToStructs` is pretty close to `PERMISSIVE` actually. I
have to make just a few small changes in tests that checks processing malformed
inputs.
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