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Posts on tips and tricks, using and learning about PostgreSQL for database development and analysis.

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We let an AI write SQL against customer databases. Here is every guardrail, and why prompting is not one.

We let an AI write SQL against customer databases. Here is every guardrail, and why prompting is not one.

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7 min read
Building File4Base: The Modern, Open-Source Alternative to old file bases (Powered by Antigravity)

Building File4Base: The Modern, Open-Source Alternative to old file bases (Powered by Antigravity)

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2 min read
A Straightforward Guide for MVCC in Postgres

A Straightforward Guide for MVCC in Postgres

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14 min read
From Zero to Hero on psql: My Weekend Adventure Installing PostgreSQL on WSL 🐧🐘

From Zero to Hero on psql: My Weekend Adventure Installing PostgreSQL on WSL 🐧🐘

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6 min read
When Runtime Plans Enter the Prompt: A Structured Debate for SQL Review Bots

When Runtime Plans Enter the Prompt: A Structured Debate for SQL Review Bots

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8 min read
Ranking a Two-Dimensional Catalog With One SQL Expression

Ranking a Two-Dimensional Catalog With One SQL Expression

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5 min read
Ten Containers, One Developer: The Architecture of a Web GIS

Ten Containers, One Developer: The Architecture of a Web GIS

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5 min read
Two Webhooks, One Rank: Race-Safe Payments with Postgres Advisory Locks

Two Webhooks, One Rank: Race-Safe Payments with Postgres Advisory Locks

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2 min read
Transactional Outbox Pattern: Prevent Lost Events in EDA

Transactional Outbox Pattern: Prevent Lost Events in EDA

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4 min read
Every feature in our catalog had at least one user. It was the same user every time - our own scanner.

Every feature in our catalog had at least one user. It was the same user every time - our own scanner.

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9 min read
What Is an ER Diagram and How to Read One

What Is an ER Diagram and How to Read One

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3 min read
Otimização de Consultas e ConsistĂȘncia de Dados

Otimização de Consultas e ConsistĂȘncia de Dados

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2 min read
credits_remaining -= 1 is a race condition

credits_remaining -= 1 is a race condition

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5 min read
Your AI will fail. Your billing system needs to know that.

Your AI will fail. Your billing system needs to know that.

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5 min read
Why Adding an Index Won't Fix Your Slow COUNT(*) in PostgreSQL

Why Adding an Index Won't Fix Your Slow COUNT(*) in PostgreSQL

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5 min read
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