Engineering researcher. APIs, databases, infrastructure, systems design.
Pagination cursors are tokens that customers eventually misuse. Setting the right TTL is the difference between bounded server-side state and a cursor that holds open a database snapshot for a week.
The tape recorder is a 20th-century invention that compressed three previously separate problems—recording, editing, and distribution—into a single workflow that reshaped music, journalism, intelligence, and the way humans remember each other.
effective_cache_size does not allocate any memory. It is a hint to the planner about how much OS page cache it can assume, and getting it wrong systematically biases the planner toward sequential scans on tables that index scans would handle better.
The anchor is one of the oldest continuously used pieces of marine engineering, with a recognizable form across thousands of years. Its evolution shaped the geography of maritime trade and the survival rate of crews in storms.
Read replicas help scale read-heavy APIs, but they only help if the application knows which queries can tolerate lag and which cannot. The routing logic determines whether replicas are an asset or a liability.
Standby queries get cancelled because they conflict with WAL replay, and the only honest way to diagnose the problem is pg_stat_database_conflicts. The view exposes five conflict types and the trade-off matrix between query stability and replication lag.
Service limits are different from rate limits and quotas. They are absolute system boundaries that exist for architectural or safety reasons, not for billing. Most APIs document them poorly, which produces predictable customer surprise.
The plow is one of the most consequential inventions in human history, and the modern plow is the result of about 8000 years of incremental development across several civilizations. Each major refinement enabled new geographic regions to be farmed.
synchronous_commit is one of the most consequential Postgres settings most teams never touch. It controls when a transaction is considered durably committed, and the default is correct for most workloads but wrong for some.
CORS is the browser policy that controls which origins can call your API from JavaScript. Get it wrong in the permissive direction and you create CSRF vulnerabilities; get it wrong in the restrictive direction and customers cannot integrate from browsers at all.
The first human flight happened in November 1783, more than a century before powered aircraft. The Montgolfier brothers used paper, linen, and a smoky fire of straw and wool. The wrong theory of why it worked persisted for decades and led to several deaths.
Every index you add costs write throughput. pg_stat_user_indexes is the view that tells you which of those costs you are paying without getting any read-side benefit. Most production databases have several indexes that have not been read in months.