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

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How Django Actually Manages Database Connections

How Django Actually Manages Database Connections

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8 min read
Supabase RLS blocks your inserts? Six causes and how to fix each

Supabase RLS blocks your inserts? Six causes and how to fix each

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4 min read
I estimated 500 RPS from the System Design book and measured 24. Here's what broke.

I estimated 500 RPS from the System Design book and measured 24. Here's what broke.

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7 min read
Your Supabase users can probably give themselves your paid plan. Here's the 30-second test

Your Supabase users can probably give themselves your paid plan. Here's the 30-second test

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3 min read
Is the Supabase anon key safe in your frontend? What actually protects your data

Is the Supabase anon key safe in your frontend? What actually protects your data

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6 min read
What is CDC in data engineering? Change data capture explained

What is CDC in data engineering? Change data capture explained

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15 min read
Forgekit: An Open-Source Next.js AI Starter Kit with RAG and pgvector

Forgekit: An Open-Source Next.js AI Starter Kit with RAG and pgvector

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11 min read
Five production bugs from running a 20-language AI song generator on Next.js

Five production bugs from running a 20-language AI song generator on Next.js

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4 min read
Pagination That Skips Rows Is an Off-by-One in the Data Model

Pagination That Skips Rows Is an Off-by-One in the Data Model

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3 min read
Applying and undoing migrations: migrate, status, rollback

Applying and undoing migrations: migrate, status, rollback

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6 min read
Generate SQL migrations from your JPA entities

Generate SQL migrations from your JPA entities

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3 min read
Renaming columns and tables without losing data

Renaming columns and tables without losing data

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6 min read
ERP Development: Sync Your App and ERP With a Postgres Outbox

ERP Development: Sync Your App and ERP With a Postgres Outbox

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6 min read
Database Indexing – Part 5: Sequential Scan vs. Index Scan vs. Bitmap Index Scan in PostgreSQL

Database Indexing – Part 5: Sequential Scan vs. Index Scan vs. Bitmap Index Scan in PostgreSQL

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6 min read
RLS was enabled and tenants could still read each other's data — the SECURITY DEFINER hole, and the query that catches it

RLS was enabled and tenants could still read each other's data — the SECURITY DEFINER hole, and the query that catches it

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2 min read
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