mirror of
https://github.com/GreptimeTeam/greptimedb.git
synced 2026-05-23 00:10:38 +00:00
5162c1de4d
* feat: repartition grammar candy Signed-off-by: Ruihang Xia <waynestxia@gmail.com> * align keyword Signed-off-by: Ruihang Xia <waynestxia@gmail.com> --------- Signed-off-by: Ruihang Xia <waynestxia@gmail.com>
52 lines
1.1 KiB
SQL
52 lines
1.1 KiB
SQL
CREATE TABLE alter_repartition_table(
|
|
device_id INT,
|
|
area STRING,
|
|
ty STRING,
|
|
ts TIMESTAMP TIME INDEX,
|
|
PRIMARY KEY(device_id)
|
|
) PARTITION ON COLUMNS (device_id, area) (
|
|
device_id < 100,
|
|
device_id >= 100 AND device_id < 200,
|
|
device_id >= 200
|
|
);
|
|
|
|
-- valid grammar, currently not implemented
|
|
ALTER TABLE alter_repartition_table REPARTITION (
|
|
device_id < 100
|
|
) INTO (
|
|
device_id < 100 AND area < 'South',
|
|
device_id < 100 AND area >= 'South'
|
|
);
|
|
|
|
-- valid grammar, currently not implemented
|
|
ALTER TABLE alter_repartition_table SPLIT PARTITION (
|
|
device_id < 100
|
|
) INTO (
|
|
device_id < 100 AND area < 'South',
|
|
device_id < 100 AND area >= 'South'
|
|
);
|
|
|
|
-- valid grammar, currently not implemented
|
|
ALTER TABLE alter_repartition_table MERGE PARTITION (
|
|
device_id < 100,
|
|
device_id >= 100 AND device_id < 200
|
|
);
|
|
|
|
-- invalid: empty source clause
|
|
ALTER TABLE alter_repartition_table REPARTITION () INTO (
|
|
device_id < 100
|
|
);
|
|
|
|
-- invalid: more than one INTO clause
|
|
ALTER TABLE alter_repartition_table REPARTITION (
|
|
device_id < 100
|
|
) INTO (
|
|
device_id < 50
|
|
), (
|
|
device_id >= 50
|
|
) INTO (
|
|
device_id >= 50
|
|
);
|
|
|
|
DROP TABLE alter_repartition_table;
|