ClickHouse/dbms/tests/queries/1_stateful/00037_uniq_state_merge1.sql

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SELECT k, any(u) AS u, uniqMerge(us) AS us FROM (SELECT domain(URL) AS k, uniq(UserID) AS u, uniqState(UserID) AS us FROM test.hits GROUP BY k) GROUP BY k ORDER BY u DESC, k ASC LIMIT 100