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create table users ( name text, v1 int, v2 int, v3 int ); insert into users values ('Вова', 2, 0, 0), ('Ваня', 0, 0, 0), ('Гриша', 0, 4, 0), ('Вася', 0, 0, 10), ('Петя', 1, 20, 40); select * from users order by case when v1 > 0 then v1 when v2 > 0 then v2 else v3 end desc;
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