Merge branch 'main' into saumya/pref-setup

Author: gargsaumya

benchmarks/README.md

@@ -23,7 +23,7 @@ Standalone script that tests real-world queries against AdventureWorks2022 datab
    - Ensure you have a running SQL Server instance.
    - Set the `DB_CONNECTION_STRING` environment variable with the connection string to your database. For example:
      ```bash
-     export DB_CONNECTION_STRING="Server=your_server;Database=your_database;UID=your_user;PWD=your_password;"
+     export DB_CONNECTION_STRING="Server=your_server;Database=AdventureWorks2022;UID=your_user;PWD=your_password;"
      ```
 
 2. **Install Richbench - Benchmarking Tool**:

benchmarks/perf-benchmarking.py

@@ -29,6 +29,10 @@
 # Configuration
 CONN_STR = os.getenv("DB_CONNECTION_STRING")
 
+if not CONN_STR:
+    print("Error: The environment variable DB_CONNECTION_STRING is not set. Please set it to a valid SQL Server connection string and try again.")
+    sys.exit(1)
+
 # Ensure pyodbc connection string has ODBC driver specified
 if CONN_STR and 'Driver=' not in CONN_STR:
     CONN_STR = f"Driver={{ODBC Driver 18 for SQL Server}};{CONN_STR}"