weizhouapache commented on a change in pull request #5565:
URL: https://github.com/apache/cloudstack/pull/5565#discussion_r726085294
##########
File path:
engine/schema/src/main/resources/META-INF/db/schema-41520to41600-cleanup.sql
##########
@@ -19,4 +19,4 @@
-- Schema upgrade cleanup from 4.15.2.0 to 4.16.0.0
--;
-ALTER TABLE `cloud`.`ssh_keypairs` MODIFY COLUMN `uuid` varchar(40) NOT NULL
UNIQUE;
Review comment:
@nvazquez
I did a small testing, see below
```
mysql> update ssh_keypairs set uuid=NULL ;UPDATE `cloud`.`ssh_keypairs` SET
`uuid`=UUID() WHERE `uuid` IS NULL;select uuid from ssh_keypairs;
Query OK, 4 rows affected (0.01 sec)
Rows matched: 4 Changed: 4 Warnings: 0
Query OK, 4 rows affected (0.00 sec)
Rows matched: 4 Changed: 4 Warnings: 0
+--------------------------------------+
| uuid |
+--------------------------------------+
| f09d204e-2a90-11ec-8103-1e0079000360 |
| f09d26e8-2a90-11ec-8103-1e0079000360 |
| f09d290e-2a90-11ec-8103-1e0079000360 |
| f09d2a97-2a90-11ec-8103-1e0079000360 |
+--------------------------------------+
4 rows in set (0.00 sec)
mysql> update ssh_keypairs set uuid=NULL ;UPDATE `cloud`.`ssh_keypairs` SET
`uuid`=UUID() WHERE `uuid` IS NULL;select uuid from ssh_keypairs;
Query OK, 4 rows affected (0.00 sec)
Rows matched: 4 Changed: 4 Warnings: 0
Query OK, 4 rows affected (0.01 sec)
Rows matched: 4 Changed: 4 Warnings: 0
+--------------------------------------+
| uuid |
+--------------------------------------+
| f2af974d-2a90-11ec-8103-1e0079000360 |
| f2af9d0a-2a90-11ec-8103-1e0079000360 |
| f2af9f0c-2a90-11ec-8103-1e0079000360 |
| f2afa083-2a90-11ec-8103-1e0079000360 |
+--------------------------------------+
4 rows in set (0.00 sec)
```
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