[GitHub] [spark] HyukjinKwon commented on a change in pull request #30224: [SPARK-33316][SQL] Support user provided nullable Avro schema for non-nullable catalyst schema in Avro writing

[GitBox <gi...@apache.org>]

HyukjinKwon commented on a change in pull request #30224:
URL: https://github.com/apache/spark/pull/30224#discussion_r516381954



##########
File path: external/avro/src/test/scala/org/apache/spark/sql/avro/AvroSuite.scala
##########
@@ -1015,6 +1015,69 @@ abstract class AvroSuite
     }
   }
 
+  test("support user provided nullable avro schema " +
+    "for non-nullable catalyst schema without any null record") {
+    withTempPath { tempDir =>
+      val catalystSchema =
+        StructType(Seq(
+          StructField("Age", IntegerType, nullable = false),
+          StructField("Name", StringType, nullable = false)))
+
+      val avroSchema =
+        """
+          |{
+          |  "type" : "record",
+          |  "name" : "test_schema",
+          |  "fields" : [
+          |    {"name": "Age", "type": ["null", "int"]},
+          |    {"name": "Name", "type": ["null", "string"]}
+          |  ]
+          |}
+        """.stripMargin
+
+      val df = spark.createDataFrame(
+        spark.sparkContext.parallelize(Seq(Row(2, "Aurora"))), catalystSchema)
+
+      val tempSavePath = s"$tempDir/save/${UUID.randomUUID()}"

Review comment:
       then I think we can just use a name like foo, boo, zoo :-)




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