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#postgres

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

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Build an Incremental ETL Pipeline in Python Using PostgreSQL Watermarks

Build an Incremental ETL Pipeline in Python Using PostgreSQL Watermarks

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7 min read
From Stage to Data: An End-to-End Power BI dashboard for a Matatu Fleet.

From Stage to Data: An End-to-End Power BI dashboard for a Matatu Fleet.

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1 min read
Three washers. One job. Zero locks.

Three washers. One job. Zero locks.

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3 min read
Supabase "new row violates row-level security policy": every cause and the fix

Supabase "new row violates row-level security policy": every cause and the fix

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8 min read
Tiger Cloud + AI Agent via Tiger CLI and MCP (GHW Hacktoberfest)

Tiger Cloud + AI Agent via Tiger CLI and MCP (GHW Hacktoberfest)

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2 min read
My agent ran prisma migrate reset. Here's the hook I wrote so it can't again

My agent ran prisma migrate reset. Here's the hook I wrote so it can't again

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1 min read
GORM counted 11 rows. PostgreSQL found 7 distinct pairs.

GORM counted 11 rows. PostgreSQL found 7 distinct pairs.

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3 min read
Five Supabase RLS Mistakes a Read-Only Query Can Catch

Five Supabase RLS Mistakes a Read-Only Query Can Catch

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4 min read
Node.js Scheduled Data Cleanup: Cron-Gated Deletion of Old PostgreSQL Digest Records

Node.js Scheduled Data Cleanup: Cron-Gated Deletion of Old PostgreSQL Digest Records

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7 min read
A Green Test Can Still Miss the Race: Testing Concurrency in PostgreSQL

A Green Test Can Still Miss the Race: Testing Concurrency in PostgreSQL

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5 min read
PostgreSQL MVCC Autovacuum Starvation: HOT Update Breakdown & Table Bloat under Heavy Write Loads

PostgreSQL MVCC Autovacuum Starvation: HOT Update Breakdown & Table Bloat under Heavy Write Loads

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4 min read
What the Reconciler Can't See

What the Reconciler Can't See

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4 min read
Why Increasing Database Connections Makes Queries Slower: Process Overhead, Little’s Law, and Pool Sizing Math

Why Increasing Database Connections Makes Queries Slower: Process Overhead, Little’s Law, and Pool Sizing Math

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8 min read
How I Built a White-Label Food Delivery Platform with AI Assistance (and What I Learned)

How I Built a White-Label Food Delivery Platform with AI Assistance (and What I Learned)

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3 min read
Building an In-Memory Semantic Cache for LLM Endpoints with Node.js and pgvector

Building an In-Memory Semantic Cache for LLM Endpoints with Node.js and pgvector

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11 min read
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