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

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TimescaleDB Continuous Aggregates: What I Got Wrong (and How to Fix It)

TimescaleDB Continuous Aggregates: What I Got Wrong (and How to Fix It)

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5 min read
1.3.3 INSERT/UPDATE/DELETE Targetlist Normalization (Default Expansion)

1.3.3 INSERT/UPDATE/DELETE Targetlist Normalization (Default Expansion)

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11 min read
Stop Losing Data: How to Fix Race Conditions in Laravel 🛑

Stop Losing Data: How to Fix Race Conditions in Laravel 🛑

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2 min read
PostgreSQL Monitoring: A Practical Guide to Metrics, Tools, and Alerts

PostgreSQL Monitoring: A Practical Guide to Metrics, Tools, and Alerts

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9 min read
A Long Story about how I dug into the PostgreSQL source code to write my own WAL receiver, and what came out of it

A Long Story about how I dug into the PostgreSQL source code to write my own WAL receiver, and what came out of it

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15 min read
Most AI Agents Do Not Have a Memory Problem. They Have a Coordination Problem.

Most AI Agents Do Not Have a Memory Problem. They Have a Coordination Problem.

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5 min read
Busca fuzzy em 55 milhões de registros: como pg_trgm salvou meu projeto

Busca fuzzy em 55 milhões de registros: como pg_trgm salvou meu projeto

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4 min read
PostgreSQL 18 Temporal Foreign Keys with Spring Boot JPA

PostgreSQL 18 Temporal Foreign Keys with Spring Boot JPA

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9 min read
I Renamed a Hot Postgres Table Without Dropping a Request

I Renamed a Hot Postgres Table Without Dropping a Request

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5 min read
PostgreSQL Full Text Search vs Elasticsearch Comparison

PostgreSQL Full Text Search vs Elasticsearch Comparison

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9 min read
Comparing Replication and Failover in PostgreSQL and MongoDB

Comparing Replication and Failover in PostgreSQL and MongoDB

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37 min read
PostgreSQL Transaction Isolation Levels Explained

PostgreSQL Transaction Isolation Levels Explained

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4 min read
Essential Concepts in SQL

Essential Concepts in SQL

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2 min read
76 RLS policies rewritten in one migration: the auth.uid() init-plan trap in Supabase

76 RLS policies rewritten in one migration: the auth.uid() init-plan trap in Supabase

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6 min read
How a Missing UNIQUE Constraint Broke Our Production Supabase Deploy (PostgreSQL ON CONFLICT)

How a Missing UNIQUE Constraint Broke Our Production Supabase Deploy (PostgreSQL ON CONFLICT)

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3 min read
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