@Test
  public void testWriteArrayOfMapsInTable() throws IOException {
    Schema schema =
        new Schema(required(1, "id", Types.LongType.get()),
            required(2, "arrayofmaps", Types.ListType
                .ofRequired(3, Types.MapType.ofRequired(4, 5, Types.StringType.get(),
                    Types.StringType.get()))));
    List<Record> records = TestHelper.generateRandomRecords(schema, 5, 1L);
    testComplexTypeWrite(schema, records);
  }
Runs insert queries against Iceberg tables with complex type columns, such as arrays, structs and maps.
iceberg/iceberg-handler/src/test/java/org/apache/iceberg/mr/hive/TestHiveIcebergComplexTypeWrites.java