Example DAG-related updates for Apache Drill (#17384)

airflow/providers/apache/drill/example_dags/__init__.py

@@ -0,0 +1,16 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.

airflow/providers/apache/drill/example_dags/example_drill_dag.py

@@ -17,20 +17,14 @@
 # under the License.
 
 """
-Example Airflow DAG to submit Apache Spark applications using
-`SparkSubmitOperator`, `SparkJDBCOperator` and `SparkSqlOperator`.
+Example Airflow DAG to execute SQL in an Apache Drill environment using the `DrillOperator`.
 """
 from airflow.models import DAG
 from airflow.providers.apache.drill.operators.drill import DrillOperator
 from airflow.utils.dates import days_ago
 
-args = {
-    'owner': 'Airflow',
-}
-
 with DAG(
     dag_id='example_drill_dag',
-    default_args=args,
     schedule_interval=None,
     start_date=days_ago(2),
     tags=['example'],