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

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Why My Pagination Got Slower Every Page: Field Notes on OFFSET, Keyset Cursors, and Stable Sort Keys

Why My Pagination Got Slower Every Page: Field Notes on OFFSET, Keyset Cursors, and Stable Sort Keys

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7 min read
How to never pay a generative API twice: a durable task table, not a retrying job queue

How to never pay a generative API twice: a durable task table, not a retrying job queue

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14 min read
We intercepted PostgreSQL’s COMMIT completion and replayed the batch

We intercepted PostgreSQL’s COMMIT completion and replayed the batch

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3 min read
auth.uid() is null: the Supabase RLS policy that lets signed-out visitors read everything

auth.uid() is null: the Supabase RLS policy that lets signed-out visitors read everything

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3 min read
Your July review cohort isn't a July travel cohort

Your July review cohort isn't a July travel cohort

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6 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
Our Export button asks for 1,000 audit rows, the route caps it at 100, and the page says all

Our Export button asks for 1,000 audit rows, the route caps it at 100, and the page says all

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5 min read
Instant GraphQL and REST from Any Postgres Database: Introducing graphpg

Instant GraphQL and REST from Any Postgres Database: Introducing graphpg

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7 min read
5 database migration mistakes that quietly take production down (and how to catch them before deploy)

5 database migration mistakes that quietly take production down (and how to catch them before deploy)

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4 min read
Stopping double bookings in the database, not the app

Stopping double bookings in the database, not the app

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5 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
A Postgres Outbox That Survives Two Pods (No Message Broker)

A Postgres Outbox That Survives Two Pods (No Message Broker)

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4 min read
Account deletion erases seven tables in one transaction, then eight string literals it cannot see

Account deletion erases seven tables in one transaction, then eight string literals it cannot see

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5 min read
Make Email Verification a Transactional Workflow

Make Email Verification a Transactional Workflow

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5 min read
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