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# postgres

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

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PostgREST can't upsert against partial unique indexes

PostgREST can't upsert against partial unique indexes

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5 min read
I found 3 silent revenue-leaking bugs in my SaaS in 45 minutes (and the meta-lesson)

I found 3 silent revenue-leaking bugs in my SaaS in 45 minutes (and the meta-lesson)

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4 min read
Time Series Systems: Architecture, Storage Models, and Engineering Principles

Time Series Systems: Architecture, Storage Models, and Engineering Principles

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27 min read
Pooling contra una t3.micro, el dĂ­a que se reventĂł...RDS Proxy es la salida?

Pooling contra una t3.micro, el dĂ­a que se reventĂł...RDS Proxy es la salida?

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9 min read
Vectorizing Real-Time Kafka Events

Vectorizing Real-Time Kafka Events

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4 min read
Deleting Millions of Rows in PostgreSQL Without Taking Down Production

Deleting Millions of Rows in PostgreSQL Without Taking Down Production

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15 min read
Multi-tenant files em Postgres + S3 com RLS FORCE: como o GarraIA fechou 9 slices REST sem deixar brecha de tenant isolation

Multi-tenant files em Postgres + S3 com RLS FORCE: como o GarraIA fechou 9 slices REST sem deixar brecha de tenant isolation

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5 min read
I added a grid_size column. Two months later I dropped it. What I learned about derived state in Postgres.

I added a grid_size column. Two months later I dropped it. What I learned about derived state in Postgres.

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4 min read
The Audit Trail Is a Data Structure, Not a Log Message

The Audit Trail Is a Data Structure, Not a Log Message

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3 min read
The Document Number Is Reserved Before the PDF Exists

The Document Number Is Reserved Before the PDF Exists

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3 min read
Designing an Expiring-Points System on an RDBMS (with Benchmarks)

Designing an Expiring-Points System on an RDBMS (with Benchmarks)

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9 min read
Building a self-healing cron system with pg_cron and Supabase edge functions

Building a self-healing cron system with pg_cron and Supabase edge functions

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3 min read
Six jours, six secondes : un test CI contre le drift sémantique d'un agent IA

Six jours, six secondes : un test CI contre le drift sémantique d'un agent IA

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7 min read
Six days, six seconds: a CI test against semantic-layer drift on an AI agent

Six days, six seconds: a CI test against semantic-layer drift on an AI agent

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7 min read
Building a Dockerized Cryptocurrency ETL Pipeline with Apache Airflow

Building a Dockerized Cryptocurrency ETL Pipeline with Apache Airflow

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4 min read
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