postgres-errors-constraint-violations

What problem does it solve?

This Skill helps prevent common PostgreSQL constraint violations, ensuring data integrity and avoiding errors like unique key, foreign key, not-null, and check constraint violations.

Core Features & Use Cases

• Constraint Violation Prevention: Offers guidelines and best practices to avoid common constraint violation errors.
• Best Practices for Indexing: Includes instructions for proper indexing of foreign key referencing columns.
• Handling Circular Foreign Keys: Provides guidance on using DEFERRABLE constraints to handle circular references.
• Adding Constraints to Large Tables: Suggests using the NOT VALID then VALIDATE pattern to minimize locking and downtime.

Quick Start

Use this skill to review your schema and queries for common constraint violation patterns.