PostgreSQL FAQs

Question 1

What is PostgreSQL MCP Server?

Accepted Answer

The PostgreSQL MCP Server provides a secure Model Context Protocol (MCP) bridge, enabling Claude Code to interact with PostgreSQL databases for read-only operations, schema exploration, and performance analysis.

Question 2

What types of SQL queries can I execute?

Accepted Answer

For security and data integrity, the server is designed for read-only operations. You can execute only SELECT and WITH statements, ensuring no data modification occurs through this integration.

Question 3

How does it help with database performance analysis?

Accepted Answer

It allows you to analyze query performance by providing execution plans using the 'EXPLAIN QUERY' feature. You can also retrieve detailed table statistics like row count and size to optimize your database interactions.

Question 4

Is the PostgreSQL MCP Server secure?

Accepted Answer

Yes, security is a priority. It features a security-first design with read-only operations by default, parameterized queries to prevent SQL injection, and robust connection validation to ensure safe database interactions.

Question 5

How do I configure the PostgreSQL MCP Server for my project?

Accepted Answer

You typically configure it by setting the `POSTGRES_URL` environment variable with your database connection string. You'll also define it in your project's `.mcap.json` file for Claude Code to discover and use.

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