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

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The Notification Born out of Love: Building an Adaptive Geofencing Engine for Digital Wallets

The Notification Born out of Love: Building an Adaptive Geofencing Engine for Digital Wallets

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2 min read
Postgres RLS in Symfony: a setup check for a missing FORCE, and two ways it says "nothing to report" without looking

Postgres RLS in Symfony: a setup check for a missing FORCE, and two ways it says "nothing to report" without looking

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6 min read
Running Terraform Enterprise Active-Active on OpenShift: Lessons Learned

Running Terraform Enterprise Active-Active on OpenShift: Lessons Learned

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9 min read
Postgres Won't Let Me Double-Book a Parking Slot: Exclusion Constraints in Practice

Postgres Won't Let Me Double-Book a Parking Slot: Exclusion Constraints in Practice

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5 min read
Schema catalogs for AI assistants: the layer nobody wants to maintain

Schema catalogs for AI assistants: the layer nobody wants to maintain

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6 min read
I Solved Double-Booking Without Locks — Using One PostgreSQL Constraint

I Solved Double-Booking Without Locks — Using One PostgreSQL Constraint

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4 min read
I Solved Double-Booking Without Locks — Using One PostgreSQL Constraint

I Solved Double-Booking Without Locks — Using One PostgreSQL Constraint

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4 min read
PostgreSQL 19's data checksums can now be switched on without stopping the server

Benchmark shows minimal write throughput impact

PostgreSQL 19's data checksums can now be switched on without stopping the server

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7 min read
How to Drop All Tables in PostgreSQL Safely (2026)

How to Drop All Tables in PostgreSQL Safely (2026)

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6 min read
Your RLS Policy Passed Its Test For the Wrong Reason

Your RLS Policy Passed Its Test For the Wrong Reason

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2 min read
Column Comments in PostgreSQL and MySQL: How to Document Columns Without a Migration

Column Comments in PostgreSQL and MySQL: How to Document Columns Without a Migration

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7 min read
My Tile Cache Has No Invalidation, So I Set It to Zero

My Tile Cache Has No Invalidation, So I Set It to Zero

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6 min read
Opus 5.5 Made Cache Reads 60% Cheaper. I Redid the Math on My Text-to-SQL Architecture

Opus 5.5 Made Cache Reads 60% Cheaper. I Redid the Math on My Text-to-SQL Architecture

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5 min read
Deploying Ory Hydra: An Open-Source OAuth 2.0 and OpenID Connect Server

Deploying Ory Hydra: An Open-Source OAuth 2.0 and OpenID Connect Server

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11 min read
Same Zone, Same Projection, 427 Metres Apart

Same Zone, Same Projection, 427 Metres Apart

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5 min read
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