# Tejaswi Thimmaiah: PostgreSQL Roles and Privileges Explained: A Practical RBAC Guide

> **Key Architectural Takeaway:** Table Of Contents Build Your PostgreSQL RBAC Lab Meet Our Credit Card Application — The RBAC Scenario Understanding PostgreSQL Roles — LOGIN vs NOLOGIN Hands-On — Create Our PostgreSQL Roles Creating Our PostgreSQL Application Database Creating Our Application Schema Creating Our Application Tables Configuring Database Access — CONNECT Privilege Configuring Schema Access — USAGE vs CREATE Configuring Table Privileges — SELECT, INSERT, UPDATE, DELETE Testing RBAC — Application vs Reporting Access PostgreSQL Role Membership — INHERIT vs SET ROLE PostgreSQL Object Ownership — Why GRANT ALL Is Not Ownership Auditing PostgreSQL RBAC — Verify Effective Privileges Build Your.

**Published:** 2026-10-15T18:10:08+00:00 
**Source:** Planet PostgreSQL 
**Category:** databases-storage 
**Canonical URL:** https://fosswire.org/news/tejaswi-thimmaiah-postgresql-roles-and-privileges-explained-.html 

## Executive Summary
Table Of Contents Build Your PostgreSQL RBAC Lab Meet Our Credit Card Application — The RBAC Scenario Understanding PostgreSQL Roles — LOGIN vs NOLOGIN Hands-On — Create Our PostgreSQL Roles Creating Our PostgreSQL Application Database Creating Our Application Schema Creating Our Application Tables Configuring Database Access — CONNECT Privilege Configuring Schema Access — USAGE vs CREATE Configuring Table Privileges — SELECT, INSERT, UPDATE, DELETE Testing RBAC — Application vs Reporting Access PostgreSQL Role Membership — INHERIT vs SET ROLE PostgreSQL Object Ownership — Why GRANT ALL Is Not Ownership Auditing PostgreSQL RBAC — Verify Effective Privileges Build Your...

## Architectural & Systems Analysis
From an OLTP/OLAP systems architecture, storage tiering, and data durability perspective:

- **Zero-Vendor Lock-in Formats:** Leveraging open specifications (e.g. Parquet, Iceberg) ensures multi-engine interoperability without ingestion lock-in.
- **Vector & In-Memory Throughput:** Modern memory layouts and SIMD-accelerated execution pipelines minimize latency in real-time retrieval.
- **Distributed Resiliency:** Decoupled storage and compute layers enable elastic horizontal scaling with strict ACID guarantees.

## Impact on the Open Ecosystem
Empowers data engineers with open, self-hosted alternatives to monopolistic cloud database providers.