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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
PostgREST can't upsert against partial unique indexes

PostgREST can't upsert against partial unique indexes

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5 min read
I turned the psql commands I keep forgetting into buttons

I turned the psql commands I keep forgetting into buttons

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4 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
SQLAlchemy Relationship Lazy Loading Strategies in Multi-Tenant FastAPI: N+1 Queries and the Cost of Joinedload

SQLAlchemy Relationship Lazy Loading Strategies in Multi-Tenant FastAPI: N+1 Queries and the Cost of Joinedload

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4 min read
Stop Running 5 Databases: PostgreSQL Does It All in 2026

Stop Running 5 Databases: PostgreSQL Does It All in 2026

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9 min read
Real-Time Metrics Dashboards with SQL: Patterns That Actually Scale

Real-Time Metrics Dashboards with SQL: Patterns That Actually Scale

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7 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
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
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