potiuk commented on a change in pull request #7172: [AIRFLOW-6564] Additional 
diagnostics information on CI check failure
URL: https://github.com/apache/airflow/pull/7172#discussion_r367088868
 
 

 ##########
 File path: airflow/utils/db.py
 ##########
 @@ -501,3 +501,13 @@ def resetdb():
     Base.metadata.drop_all(connection)  # pylint: disable=no-member
 
     initdb()
+
+
+@provide_session
+def check(session=None):
+    """
+    Checks if the database works.
+    @param session: session of the sqlalchemy
+    """
+    session.execute('select 1 as is_alive;')
 
 Review comment:
   It throws an exception :). Which in turn exits with non-zero exit code :)

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