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#postgres

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

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SELECT MAX()+1 Is a Race Condition Waiting to Happen

SELECT MAX()+1 Is a Race Condition Waiting to Happen

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3 min read
Postgres or ClickHouse? Row vs Column Storage, and When Each Wins

Postgres or ClickHouse? Row vs Column Storage, and When Each Wins

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3 min read
QuickBooks API Integration Guide for Developers

QuickBooks API Integration Guide for Developers

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8 min read
PostgreSQL 2200N Error: Causes and Solutions Complete Guide

PostgreSQL 2200N Error: Causes and Solutions Complete Guide

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3 min read
How We Reduced API Response Time by 80% for a Client — A Real-World Optimization Walkthrough

How We Reduced API Response Time by 80% for a Client — A Real-World Optimization Walkthrough

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4 min read
Your RAG Eval Isn't Flaky. Your Retrieval Is Non-Deterministic.

RRF rank drift from SQL ties

Your RAG Eval Isn't Flaky. Your Retrieval Is Non-Deterministic.

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2 min read
From 5 Seconds to 50ms: How I Stopped Nuking My Database Every Time I Deleted an Order

From 5 Seconds to 50ms: How I Stopped Nuking My Database Every Time I Deleted an Order

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7 min read
PostgreSQL 2200M Error: Causes and Solutions Complete Guide

PostgreSQL 2200M Error: Causes and Solutions Complete Guide

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3 min read
I Built a B-Tree in Pure Python and Finally Understood Why Postgres Uses It for Every Index

I Built a B-Tree in Pure Python and Finally Understood Why Postgres Uses It for Every Index

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6 min read
The Soft Delete Trap: Unique Constraints in Laravel 🛑

The Soft Delete Trap: Unique Constraints in Laravel 🛑

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3 min read
Optimistic concurrency is the whole design: event sourcing on Aurora DSQL

Optimistic concurrency is the whole design: event sourcing on Aurora DSQL

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5 min read
Building ProcureAI: An AI-Powered Procurement Platform with Aurora PostgreSQL

Building ProcureAI: An AI-Powered Procurement Platform with Aurora PostgreSQL

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4 min read
Three PostgreSQL Master/Replica Discovery Problems — and How to Solve Them

Three PostgreSQL Master/Replica Discovery Problems — and How to Solve Them

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17 min read
Retrieval-Augmented Self-Recall — Part 2: Hybrid RAG on Nothing but Postgres

Retrieval-Augmented Self-Recall — Part 2: Hybrid RAG on Nothing but Postgres

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4 min read
PostgreSQL 22P02 Error: Causes and Solutions Complete Guide

PostgreSQL 22P02 Error: Causes and Solutions Complete Guide

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3 min read
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