DROP TABLE IF EXISTS Test_00584; set allow_deprecated_syntax_for_merge_tree=1; CREATE TABLE Test_00584 ( createdDate Date, str String, key Enum8('A' = 0, 'B' = 1, 'ALL' = 2), a Int64 ) ENGINE = MergeTree(createdDate, str, 8192); INSERT INTO Test_00584 VALUES ('2000-01-01', 'hello', 'A', 123); SET max_threads = 1; CREATE VIEW TestView AS SELECT str, key, sumIf(a, 0) AS sum FROM Test_00584 GROUP BY str, key UNION ALL SELECT str AS str, CAST('ALL' AS Enum8('A' = 0, 'B' = 1, 'ALL' = 2)) AS key, sumIf(a, 0) AS sum FROM Test_00584 GROUP BY str; SELECT * FROM TestView ORDER BY key; DROP TABLE TestView; DROP TABLE Test_00584;