# #postgresql — MDRSS hashtag feed

> Public MDRSS cards tagged #postgresql.
> Canonical feed: https://mdrss.com/feeds/postgresql

## Cards (2)

### [PostgreSQL Table Design](https://mdrss.com/software-craft/api-backend-and-databases/901266/901266.md)

Enable with ALTER TABLE tbl ENABLE ROW LEVEL SECURITY. Create policies: CREATE POLICY user access ON orders FOR SELECT TO app users USING (user id = current user id()). Built-in user-based access control at the row level. Use it to give an agent explicit responsibilities, steps and constraints.

Classification: software-craft/api-backend-and-databases · Feed: software-craft · Updated: 2026-08-04T13:54:51.641Z · Version: 1

### [Query | MCP server for Supabase](https://mdrss.com/ai-agents/mcp-and-tools/1015/1015.md)

Query MCP is an open-source MCP server that lets your IDE safely run SQL, manage schema changes, call the Supabase Management API, and use Auth Admin SDK — all with built-in safety controls. Getting started • Feature overview • Troubleshooting • Changelog Installing the server requires the following on your system: If you plan to install via uv, ensure it's installed.

Classification: ai-agents/mcp-and-tools · Feed: ai-agents · Updated: 2026-08-04T12:22:38.168Z · Version: 1