DROP TABLE IF EXISTS alias_local10; DROP TABLE IF EXISTS alias10; CREATE TABLE alias_local10 ( Id Int8, EventDate Date DEFAULT '2000-01-01', field1 Int8, field2 String, field3 ALIAS CASE WHEN field1 = 1 THEN field2 ELSE '0' END ) ENGINE = MergeTree(EventDate, (Id, EventDate), 8192); CREATE TABLE alias10 AS alias_local10 ENGINE = Distributed(test_shard_localhost, test, alias_local10, cityHash64(Id)); INSERT INTO alias_local10 (Id, EventDate, field1, field2) VALUES (1, '2000-01-01', 1, '12345'), (2, '2000-01-01', 2, '54321'), (3, '2000-01-01', 0, ''); SELECT field1, field2, field3 FROM alias_local10; SELECT field1, field2, field3 FROM alias_local10 WHERE EventDate='2000-01-01'; SELECT field1, field2 FROM alias_local10 WHERE EventDate='2000-01-01'; SELECT field1, field2, field3 FROM alias10; SELECT field1, field2, field3 FROM alias10 WHERE EventDate='2000-01-01'; SELECT field1, field2 FROM alias10 WHERE EventDate='2000-01-01'; SELECT field2, field3 FROM alias10 WHERE EventDate='2000-01-01'; SELECT field3 FROM alias10 WHERE EventDate='2000-01-01'; SELECT field2, field3 FROM alias10; SELECT field3 FROM alias10; SELECT field1 FROM alias10 WHERE field3 = '12345'; SELECT field2 FROM alias10 WHERE field3 = '12345'; SELECT field3 FROM alias10 WHERE field3 = '12345'; DROP TABLE alias10; CREATE TABLE alias10 ( Id Int8, EventDate Date, field1 Int8, field2 String, field3 String ) ENGINE = Distributed(test_shard_localhost, test, alias_local10); SELECT field1, field2, field3 FROM alias_local10; SELECT field1, field2, field3 FROM alias_local10 WHERE EventDate='2000-01-01'; SELECT field1, field2 FROM alias_local10 WHERE EventDate='2000-01-01'; SELECT field1, field2, field3 FROM alias10; SELECT field1, field2, field3 FROM alias10 WHERE EventDate='2000-01-01'; SELECT field1, field2 FROM alias10 WHERE EventDate='2000-01-01'; SELECT field2, field3 FROM alias10 WHERE EventDate='2000-01-01'; SELECT field3 FROM alias10 WHERE EventDate='2000-01-01'; SELECT field2, field3 FROM alias10; SELECT field3 FROM alias10; SELECT field1 FROM alias10 WHERE field3 = '12345'; SELECT field2 FROM alias10 WHERE field3 = '12345'; SELECT field3 FROM alias10 WHERE field3 = '12345'; DROP TABLE alias_local10; DROP TABLE alias10;