Ask HN: What engineering trivia earned you the most cred

2•porkbrain•18h ago

Is there a specific piece of engineering knowledge that powered you to substantially contribute?

A software engineering example: knowing that Postgres FK doesn't implicitly create an index. Three different projects I joined weren't aware of this and we managed to improve the performance with a negligible amount of effort.

Keen to hear your wins (and make them mine ^^

Comments

catlover76•18h ago

> knowing that Postgres FK doesn't implicitly create an index.

Damn really lol

What does it do then, just block "breaking" deletes?

porkbrain•18h ago

You can cascade the deletes in db layer rather than in app layer

austin-cheney•2h ago

Deeper internal knowledge of WebSockets and HTTP got me my current job.

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