diff --git a/awx/api/views/__init__.py b/awx/api/views/__init__.py
index 0511b69664..221db21b00 100644
--- a/awx/api/views/__init__.py
+++ b/awx/api/views/__init__.py
@@ -128,6 +128,10 @@ logger = logging.getLogger('awx.api.views')
 
 
 def unpartitioned_event_horizon(cls):
+    with connection.cursor() as cursor:
+        cursor.execute(f"SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE table_name = '_unpartitioned_{cls._meta.db_table}';")
+        if not cursor.fetchone():
+            return 0
     with connection.cursor() as cursor:
         try:
             cursor.execute(f'SELECT MAX(id) FROM _unpartitioned_{cls._meta.db_table}')