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create table t (project int, id int[]); insert into t values (1, '{7, 7, 7}'); insert into t values (1, '{8, 8, 8}'); insert into t values (1, '{1, 11, 10}'); insert into t values (2, '{2, 22, 12}'); insert into t values (2, '{3, 33, 13}'); insert into t values (2, '{4, 44, 14}'); insert into t values (3, '{5, 55, 15}'); insert into t values (3, '{6, 66, 16}'); select *, dense_rank() over(partition by project order by id[3]) from t where id[3] > 10
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