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    hello all,
    could anyone tell me when do we get below error while soling the sql KATA.
    Whenever I am writting below query it is giving the error."select f1.film_id from film_actor f1 inner join film_actor f2 on f1.actor_id=f2.actor_id"
    {"stdout":"Connecting to database...\nRunning sql commands...\n[{"actor_id":1},{"actor_id":1},{"actor_id":1},{"actor_id":1},{"actor_id":1},{"actor_id":1},{"actor_id":1},{"actor_id":1},{"actor_id":1},{"actor_id":1},{"actor_id":10},{"actor_id":10},{"actor_id":10},{"actor_id":10},{"actor_id":10},
    Thanks,
    Abhishek