mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-21 01:00:48 +00:00
55 lines
2.5 KiB
SQL
55 lines
2.5 KiB
SQL
DROP TABLE IF EXISTS test;
|
|
CREATE TABLE test (x Enum('hello' = 1, 'world' = 2), y String) ENGINE = MergeTree PARTITION BY x ORDER BY y;
|
|
INSERT INTO test VALUES ('hello', 'test');
|
|
|
|
SELECT * FROM test;
|
|
SELECT name, partition, partition_id FROM system.parts WHERE database = currentDatabase() AND table = 'test' AND active ORDER BY partition;
|
|
|
|
ALTER TABLE test MODIFY COLUMN x Enum('hello' = 1, 'world' = 2, 'goodbye' = 3);
|
|
INSERT INTO test VALUES ('goodbye', 'test');
|
|
OPTIMIZE TABLE test FINAL;
|
|
SELECT * FROM test ORDER BY x;
|
|
SELECT name, partition, partition_id FROM system.parts WHERE database = currentDatabase() AND table = 'test' AND active ORDER BY partition;
|
|
|
|
ALTER TABLE test MODIFY COLUMN x Int8;
|
|
INSERT INTO test VALUES (111, 'abc');
|
|
OPTIMIZE TABLE test FINAL;
|
|
SELECT * FROM test ORDER BY x;
|
|
SELECT name, partition, partition_id FROM system.parts WHERE database = currentDatabase() AND table = 'test' AND active ORDER BY partition;
|
|
|
|
ALTER TABLE test MODIFY COLUMN x Enum8('' = 1); -- { serverError 524 }
|
|
ALTER TABLE test MODIFY COLUMN x Enum16('' = 1); -- { serverError 524 }
|
|
|
|
ALTER TABLE test MODIFY COLUMN x Int16;
|
|
INSERT INTO test VALUES (-1111, 'def');
|
|
OPTIMIZE TABLE test FINAL;
|
|
SELECT * FROM test ORDER BY x;
|
|
SELECT name, partition, partition_id FROM system.parts WHERE database = currentDatabase() AND table = 'test' AND active ORDER BY partition;
|
|
|
|
ALTER TABLE test MODIFY COLUMN x Date; -- { serverError 524 }
|
|
|
|
ALTER TABLE test MODIFY COLUMN x Int32;
|
|
INSERT INTO test VALUES (-11112222, 'ghi');
|
|
OPTIMIZE TABLE test FINAL;
|
|
SELECT * FROM test ORDER BY x;
|
|
SELECT name, partition, partition_id FROM system.parts WHERE database = currentDatabase() AND table = 'test' AND active ORDER BY partition;
|
|
|
|
ALTER TABLE test MODIFY COLUMN x DateTime; -- { serverError 524 }
|
|
|
|
ALTER TABLE test MODIFY COLUMN x Int64;
|
|
INSERT INTO test VALUES (-1111222233334444, 'jkl');
|
|
OPTIMIZE TABLE test FINAL;
|
|
SELECT * FROM test ORDER BY x;
|
|
SELECT name, partition, partition_id FROM system.parts WHERE database = currentDatabase() AND table = 'test' AND active ORDER BY partition;
|
|
|
|
ALTER TABLE test MODIFY COLUMN x UInt64; -- { serverError 524 }
|
|
ALTER TABLE test MODIFY COLUMN x String; -- { serverError 524 }
|
|
ALTER TABLE test MODIFY COLUMN x Nullable(Int64); -- { serverError 524 }
|
|
|
|
ALTER TABLE test RENAME COLUMN x TO z; -- { serverError 47 }
|
|
ALTER TABLE test RENAME COLUMN y TO z; -- { serverError 47 }
|
|
ALTER TABLE test DROP COLUMN x; -- { serverError 47 }
|
|
ALTER TABLE test DROP COLUMN y; -- { serverError 47 }
|
|
|
|
DROP TABLE test;
|