Databases
sql
Intermediate
Row-Level Security in Postgres
Enable RLS on a table so users can only read their own rows.
sql
ALTER TABLE projects ENABLE ROW LEVEL SECURITY;
CREATE POLICY user_isolation ON projects
USING (owner_id = current_setting('app.current_user_id')::bigint);
-- Set context in app (per request)
SET LOCAL app.current_user_id = 42;
SELECT * FROM projects; -- returns only rows owned by user 42Prerequisites
- PostgreSQL >= 9.5
Pro Tips
- → Test with SET ROLE to verify the policy from the user's perspective.
Commercial Licensing
Acquire a production access token or template license for enterprise deployment.
Module Info
- Language
- sql
- Level
- Intermediate
- Read time
- 4 min
- Published
- Apr 2026
- License
- Commercial License
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