alt Hacker News> They made him do it again and he passed.
I would hire the "just use postgres" dude in a heartbeat without re-testing, if the numbers made sense, and perhaps give a stern talking-to to the interviewers. But then again I'm not a unicorn founder, so what do I know.
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PKop • yesterday at 2:51 PM
Eh, it's a good answer and shows good instincts, but they still want to know how he would design a system if one was necessary. There's no need to be ridiculous about any of this from either perspective, which is why it should never have been a "fail" without the original interviewer simply saying "That's a solid answer now tell me what you would do if you had to build something new". I mean look how much time he wasted for everyone including his own CEO by being stubborn about it.
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My read of the story is that the decision to hire was already made, the interviewer goofed but was then set on the right track by his boss.