Problem
Explain the difference between an inner join and a left join, and describe a scenario where using an index would significantly optimize query performance.
Practicing as: Software Engineer interview at ForeFlightHi, I'll play your ForeFlight interviewer for the Software Engineer role. Candidates describe these interviews as mixed and moderately difficult, so expect me to be professional and fair. Take your time with the question above and answer like we're in the room.
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