SET send_logs_level = 'none'; DROP TABLE IF EXISTS old_style; CREATE TABLE old_style(d Date, x UInt32) ENGINE ReplicatedMergeTree('/clickhouse/tables/test/old_style', 'r1', d, x, 8192); ALTER TABLE old_style ADD COLUMN y UInt32, MODIFY ORDER BY (x, y); -- { serverError 36 } DROP TABLE old_style; DROP TABLE IF EXISTS test.summing_r1; DROP TABLE IF EXISTS test.summing_r2; CREATE TABLE test.summing_r1(x UInt32, y UInt32, val UInt32) ENGINE ReplicatedSummingMergeTree('/clickhouse/tables/test/summing', 'r1') ORDER BY (x, y); CREATE TABLE test.summing_r2(x UInt32, y UInt32, val UInt32) ENGINE ReplicatedSummingMergeTree('/clickhouse/tables/test/summing', 'r2') ORDER BY (x, y); /* Can't add an expression with existing column to ORDER BY. */ ALTER TABLE test.summing_r1 MODIFY ORDER BY (x, y, -val); -- { serverError 36 } /* Can't add an expression with existing column to ORDER BY. */ ALTER TABLE test.summing_r1 ADD COLUMN z UInt32 DEFAULT x + 1, MODIFY ORDER BY (x, y, -z); -- { serverError 36 } /* Can't add nonexistent column to ORDER BY. */ ALTER TABLE test.summing_r1 MODIFY ORDER BY (x, y, nonexistent); -- { serverError 47 } /* Can't modyfy ORDER BY so that it is no longer a prefix of the PRIMARY KEY. */ ALTER TABLE test.summing_r1 MODIFY ORDER BY x; -- { serverError 36 } INSERT INTO test.summing_r1(x, y, val) VALUES (1, 2, 10), (1, 2, 20); SYSTEM SYNC REPLICA test.summing_r2; ALTER TABLE test.summing_r1 ADD COLUMN z UInt32 AFTER y, MODIFY ORDER BY (x, y, -z); INSERT INTO test.summing_r1(x, y, z, val) values (1, 2, 1, 30), (1, 2, 2, 40), (1, 2, 2, 50); SYSTEM SYNC REPLICA test.summing_r2; SELECT '*** Check that the parts are sorted according to the new key. ***'; SELECT * FROM test.summing_r2 ORDER BY _part; SELECT '*** Check that the rows are collapsed according to the new key. ***'; SELECT * FROM test.summing_r2 FINAL ORDER BY x, y, z; SELECT '*** Check SHOW CREATE TABLE ***'; SHOW CREATE TABLE test.summing_r2; DETACH TABLE test.summing_r2; ALTER TABLE test.summing_r1 ADD COLUMN t UInt32 AFTER z, MODIFY ORDER BY (x, y, t * t) SETTINGS replication_alter_partitions_sync = 2; -- { serverError 341 } ATTACH TABLE test.summing_r2; SELECT sleep(1) Format Null; SELECT '*** Check SHOW CREATE TABLE after offline ALTER ***'; SHOW CREATE TABLE test.summing_r2; DROP TABLE test.summing_r1; DROP TABLE test.summing_r2;