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#postgres

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

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Blue-green deploys do not save you from a bad migration

Blue-green deploys do not save you from a bad migration

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4 min read
Tracking LLM cost per customer in Node.js with AsyncLocalStorage

Tracking LLM cost per customer in Node.js with AsyncLocalStorage

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6 min read
Context Rot: Why Your RAG Pipeline Degrades Without Anyone Deploying Anything

Context Rot: Why Your RAG Pipeline Degrades Without Anyone Deploying Anything

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6 min read
Supabase Permission Denied for Table 42501? Fix It Fast

Supabase Permission Denied for Table 42501? Fix It Fast

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3 min read
PostgreSQL vs MySQL: 7 syntax differences that break migrations

PostgreSQL vs MySQL: 7 syntax differences that break migrations

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4 min read
SQLite or PostgreSQL: one codebase, two engines, one env var

SQLite or PostgreSQL: one codebase, two engines, one env var

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4 min read
Postgres 14 end of life: what it means for your business, and what to ask your developer

Postgres 14 end of life: what it means for your business, and what to ask your developer

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8 min read
Run pressly/goose Migrations as a Flisk One-Shot Job

Run pressly/goose Migrations as a Flisk One-Shot Job

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4 min read
Let Claude Code read your production database — even a write disguised as SELECT gets refused

Let Claude Code read your production database — even a write disguised as SELECT gets refused

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4 min read
Our disk alert waited for ninety seven percent and Postgres stopped at ninety five

Our disk alert waited for ninety seven percent and Postgres stopped at ninety five

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2 min read
Why Your AI Demo Is Fast and Production Is Slow (and the 4 Fixes That Worked)

Why Your AI Demo Is Fast and Production Is Slow (and the 4 Fixes That Worked)

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5 min read
The NOT IN trap: why your SQL query returns zero rows

The NOT IN trap: why your SQL query returns zero rows

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3 min read
ROW_NUMBER vs RANK vs DENSE_RANK: one of them silently duplicates your Top-N

ROW_NUMBER vs RANK vs DENSE_RANK: one of them silently duplicates your Top-N

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4 min read
Gerador Simples de Catálogo de Produtos

Gerador Simples de Catálogo de Produtos

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1 min read
Cleaning and Analyzing Tembo Hotel's Bookings

Cleaning and Analyzing Tembo Hotel's Bookings

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27 min read
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