mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-27 10:02:01 +00:00
72 lines
2.0 KiB
SQL
72 lines
2.0 KiB
SQL
DROP TABLE IF EXISTS test.alter;
|
|
CREATE TABLE test.alter (d Date, k UInt64, i32 Int32) ENGINE=MergeTree(d, k, 8192);
|
|
|
|
INSERT INTO test.alter VALUES ('2015-01-01', 10, 42);
|
|
|
|
DESC TABLE test.alter;
|
|
SHOW CREATE TABLE test.alter;
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
ALTER TABLE test.alter ADD COLUMN n Nested(ui8 UInt8, s String);
|
|
INSERT INTO test.alter VALUES ('2015-01-01', 8, 40, [1,2,3], ['12','13','14']);
|
|
|
|
DESC TABLE test.alter;
|
|
SHOW CREATE TABLE test.alter;
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
ALTER TABLE test.alter ADD COLUMN `n.d` Array(Date);
|
|
INSERT INTO test.alter VALUES ('2015-01-01', 7, 39, [10,20,30], ['120','130','140'],['2000-01-01','2000-01-01','2000-01-03']);
|
|
|
|
DESC TABLE test.alter;
|
|
SHOW CREATE TABLE test.alter;
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
ALTER TABLE test.alter ADD COLUMN s String DEFAULT '0';
|
|
INSERT INTO test.alter VALUES ('2015-01-01', 6,38,[10,20,30],['asd','qwe','qwe'],['2000-01-01','2000-01-01','2000-01-03'],'100500');
|
|
|
|
DESC TABLE test.alter;
|
|
SHOW CREATE TABLE test.alter;
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
ALTER TABLE test.alter DROP COLUMN `n.d`, MODIFY COLUMN s Int64;
|
|
|
|
DESC TABLE test.alter;
|
|
SHOW CREATE TABLE test.alter;
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
ALTER TABLE test.alter ADD COLUMN `n.d` Array(Date), MODIFY COLUMN s UInt32;
|
|
|
|
DESC TABLE test.alter;
|
|
SHOW CREATE TABLE test.alter;
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
OPTIMIZE TABLE test.alter;
|
|
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
ALTER TABLE test.alter DROP COLUMN n.ui8, DROP COLUMN n.d;
|
|
|
|
DESC TABLE test.alter;
|
|
SHOW CREATE TABLE test.alter;
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
ALTER TABLE test.alter DROP COLUMN n.s;
|
|
|
|
DESC TABLE test.alter;
|
|
SHOW CREATE TABLE test.alter;
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
ALTER TABLE test.alter ADD COLUMN n.s Array(String), ADD COLUMN n.d Array(Date);
|
|
|
|
DESC TABLE test.alter;
|
|
SHOW CREATE TABLE test.alter;
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
ALTER TABLE test.alter DROP COLUMN n;
|
|
|
|
DESC TABLE test.alter;
|
|
SHOW CREATE TABLE test.alter;
|
|
SELECT * FROM test.alter ORDER BY k;
|
|
|
|
DROP TABLE test.alter;
|