postgres-patterns

Provide PostgreSQL best practices for query optimization, indexing, and security.

Updated Nov 17, 2025
One-click install
npx skills add https://github.com/itou-daiki/easy_stat_edu --skill postgres-patterns-itou-daiki
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: postgres-patterns
Source: https://github.com/itou-daiki/easy_stat_edu/tree/main/.agent/skills/postgres-patterns
Command: npx skills add https://github.com/itou-daiki/easy_stat_edu --skill postgres-patterns-itou-daiki

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

PostgreSQL users often struggle with choosing optimal indexing strategies, designing scalable schemas, and enforcing robust security patterns. This skill provides concise, battle-tested approaches to these challenges, enabling faster performance tuning and safer database designs.

Core Features & Use Cases

  • Indexing guidance: recommended index types and patterns for common query shapes.
  • Schema-design best practices: data types, normalization levels, and practical denormalization considerations.
  • Security & reliability: Row Level Security (RLS) policies, access controls, and safe upsert/mutation patterns.
  • Practical templates: ready-to-use SQL templates for UPSERT, pagination, and common admin tasks.

Quick Start

Apply the reference patterns and templates to optimize queries, design schemas, and enforce security in PostgreSQL projects.

Frequently Asked Questions about postgres-patterns

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What's the best way to optimize slow PostgreSQL queries?

PostgreSQL query optimization involves selecting appropriate index types for your query shapes and avoiding common anti-patterns. Battle-tested patterns guide you through index design to achieve faster performance tuning without guesswork.

How do I configure Row Level Security in PostgreSQL?

Configure Row Level Security in PostgreSQL by applying robust RLS policies and access controls. Best-practice patterns enforce database-level security to ensure safer data designs and reliable multi-tenant access restrictions.

What PostgreSQL index types should I use for my queries?

PostgreSQL index selection depends on your query shapes and data types. Best-practice patterns recommend specific index types for common access patterns, helping you avoid inefficient scans and improve overall database performance.

How do I write a safe upsert SQL template in PostgreSQL?

Write a safe PostgreSQL upsert using ready-to-use SQL templates that handle conflict resolution and mutations securely. These patterns prevent race conditions and data anomalies during concurrent database insert and update operations.

Does this database design skill support Supabase deployments?

Yes, the PostgreSQL patterns explicitly transfer knowledge to Supabase-backed deployments, including index types, data type recommendations, and common SQL templates. This ensures your schema design and security configurations align with Supabase requirements.

What are common PostgreSQL anti-patterns to avoid in schema design?

Common PostgreSQL anti-patterns include poor indexing choices, improper data type selection, and unnormalized schemas. Detecting these anti-patterns early enables scalable schema design and prevents performance degradation as your database grows.