CREATE TABLE phy (ts timestamp time index, val double, a_label STRING, PRIMARY KEY(a_label)) engine=metric with ("physical_metric_table" = "");

Affected Rows: 0

ALTER TABLE phy ADD COLUMN b_label STRING PRIMARY KEY;

Error: 1001(Unsupported), Alter request to physical region is forbidden

ALTER TABLE phy DROP COLUMN a_label;

Error: 1004(InvalidArguments), Not allowed to remove index column a_label from table phy

ALTER TABLE phy SET 'ttl'='1d';

Affected Rows: 0

SHOW CREATE TABLE phy;

+-------+------------------------------------+
| Table | Create Table                       |
+-------+------------------------------------+
| phy   | CREATE TABLE IF NOT EXISTS "phy" ( |
|       |   "ts" TIMESTAMP(3) NOT NULL,      |
|       |   "val" DOUBLE NULL,               |
|       |   "a_label" STRING NULL,           |
|       |   TIME INDEX ("ts"),               |
|       |   PRIMARY KEY ("a_label")          |
|       | )                                  |
|       |                                    |
|       | ENGINE=metric                      |
|       | WITH(                              |
|       |   physical_metric_table = '',      |
|       |   ttl = '1day'                     |
|       | )                                  |
+-------+------------------------------------+

ALTER TABLE phy UNSET 'ttl';

Affected Rows: 0

SHOW CREATE TABLE phy;

+-------+------------------------------------+
| Table | Create Table                       |
+-------+------------------------------------+
| phy   | CREATE TABLE IF NOT EXISTS "phy" ( |
|       |   "ts" TIMESTAMP(3) NOT NULL,      |
|       |   "val" DOUBLE NULL,               |
|       |   "a_label" STRING NULL,           |
|       |   TIME INDEX ("ts"),               |
|       |   PRIMARY KEY ("a_label")          |
|       | )                                  |
|       |                                    |
|       | ENGINE=metric                      |
|       | WITH(                              |
|       |   physical_metric_table = ''       |
|       | )                                  |
+-------+------------------------------------+

ALTER TABLE phy MODIFY COLUMN a_label SET INVERTED INDEX;

Affected Rows: 0

SHOW CREATE TABLE phy;

+-------+-----------------------------------------+
| Table | Create Table                            |
+-------+-----------------------------------------+
| phy   | CREATE TABLE IF NOT EXISTS "phy" (      |
|       |   "ts" TIMESTAMP(3) NOT NULL,           |
|       |   "val" DOUBLE NULL,                    |
|       |   "a_label" STRING NULL INVERTED INDEX, |
|       |   TIME INDEX ("ts"),                    |
|       |   PRIMARY KEY ("a_label")               |
|       | )                                       |
|       |                                         |
|       | ENGINE=metric                           |
|       | WITH(                                   |
|       |   physical_metric_table = ''            |
|       | )                                       |
+-------+-----------------------------------------+

ALTER TABLE phy MODIFY COLUMN a_label UNSET INVERTED INDEX;

Affected Rows: 0

SHOW CREATE TABLE phy;

+-------+------------------------------------+
| Table | Create Table                       |
+-------+------------------------------------+
| phy   | CREATE TABLE IF NOT EXISTS "phy" ( |
|       |   "ts" TIMESTAMP(3) NOT NULL,      |
|       |   "val" DOUBLE NULL,               |
|       |   "a_label" STRING NULL,           |
|       |   TIME INDEX ("ts"),               |
|       |   PRIMARY KEY ("a_label")          |
|       | )                                  |
|       |                                    |
|       | ENGINE=metric                      |
|       | WITH(                              |
|       |   physical_metric_table = ''       |
|       | )                                  |
+-------+------------------------------------+

DROP TABLE phy;

Affected Rows: 0