MolocoHardSQL & Data Manipulation00:00Welcome to your interview for the Data Analyst role at Moloco.
The question is on your right: Join Optimization for Large Tables. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen. You have three graded attempts to score 7/10 or better.
How would you optimize a query at Moloco that involves joining a massive transaction table with a smaller user metadata table to avoid memory issues?