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create table l (`user_id` int, `like` int, `dislike` int); insert into l values (1, 1, 0), (1, 0, 1), (1, 1, 0), (2, 0, 1), (2, 1, 0); select user_id, count(nullif(`like`, 0)) likes, count(nullif(dislike, 0)) dislikes from l group by user_id
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