PGConf NYC 2021 Conference
Recently I had the opportunity to travel to NYC to present at PGConf NYC 2021.
Hi! My name is Andy and this is my website, blog and portfolio. Please take a look around and thanks for stopping by!
Latest Articles
Prioritizing Work that Matters
In the StaffEng book, there is a section called Work on What Matters.
Find Duplicate Records Using ROW_NUMBER Window Function
Finding duplicate rows following an application bug can be tricky to do in a performant way. One way to improve the speed and simplicity of identifying the duplicate rows is doing both the find and delete all in SQL, as...
Bulk Inserts, Returning, and Unlogged Tables
By using unlogged tables we can insert rows at a higher rate compared with a normal table. But there is a trade-off.
Using pg_repack to Rebuild Indexes
Over time our indexes became bloated, meaning invisible rows were still present in the index. This is inefficient and can be addressed by rebuilding the index.
Manually Fixing a Rails Migration
This tip is a recipe for how to recover from a Rails migration that failed to apply in production, by applying it manually. This process could work for any SQL migration but the example used below is for an index...
PostgreSQL pgbench Workload Simulation
We operate a high scale API application that relies on a single primary PostgreSQL instance. We have scaled up the DB instance vertically, acquiring more CPU, Memory, and disk IO over time.
PostgreSQL Indexes: Prune and Tune
Indexes on tables are great for finding a needle (or a few needles) in a haystack.
JWT, JWK, and JWKS Oh My
Authentication and authorization with JSON technologies can be a confusing mess of of acronyms, so this post is an attempt to sort these out. This post including the title, is very similar to Red Thunder: JWTs? JWKs? ‘kid’s? ‘x5t’s? Oh...
Throttling and Temporary Bans with Rack Attack
Rack Attack is a Rack middleware developed at Kickstarter that can be used to throttle endpoints and temporarily ban bad actors.