Infinite recursion in Postgres RLS: a SECURITY DEFINER gotcha

1. 1Create a test function with SECURITY DEFINER to reproduce the issue
2. 2Analyze the query plan to identify the recursive function call
3. 3Apply a fix by redefining the function without SECURITY DEFINER or using a different approach to achieve the desired security behavior
4. 4Test the revised function to ensure it works as expected without infinite recursion
5. 5Review existing functions in your database for similar SECURITY DEFINER usage and update them as needed

Database administrators and developers working with Postgres RLS will benefit from understanding this security gotcha to avoid potential issues

💡 Using SECURITY DEFINER with functions in Postgres RLS can lead to infinite recursion if not carefully managed

🚨 SECURITY DEFINER gotcha in Postgres RLS can cause infinite recursion! 🚨