$ podman run --rm -d -e MARIADB_USER=bob -e MARIADB_PASSWORD=entry -e MARIADB_DATABASE=uuidtest -e MARIADB_RANDOM_ROOT_PASSWORD=1 --name mariadb-uuid quay.io/mariadb-foundation/mariadb-devel:10.7-mdev-4958-uuid-amd64
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$ podman exec -ti mariadb-uuid mariadb -u bob -pentry uuidtest
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Welcome to the MariaDB monitor. Commands end with ; or \g.
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Your MariaDB connection id is 3
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Server version: 10.7.0-MariaDB-MDEV-4958-uuid mariadb.org binary distribution
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Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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MariaDB [uuidtest]> create table uuidtest ( id uuid primary key default (uuid()));
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Query OK, 0 rows affected (0.021 sec)
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MariaDB [uuidtest]> insert into uuidtest values (),(),();
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Query OK, 3 rows affected (0.004 sec)
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Records: 3 Duplicates: 0 Warnings: 0
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MariaDB [uuidtest]> select * from uuidtest;
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+--------------------------------------+
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| id |
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+--------------------------------------+
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| 2ed904c4-16bc-11ec-a724-7e502e50dded |
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| 2ed90772-16bc-11ec-a724-7e502e50dded |
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| 2ed90913-16bc-11ec-a724-7e502e50dded |
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+--------------------------------------+
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MariaDB [uuidtest]> insert into uuidtest values ('2ed904c4-16bc-11ec-a724-7e502e50dded'),('2ed904c4-16bc-11ec-a724-7e502e50dded'),('2ed904c4-16bc-11ec-a724-7e502e50dded');
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ERROR 1062 (23000): Duplicate entry '2ed904c4-16bc-11ec-a724-7e502e50dded' for key 'PRIMARY'
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So the uuid is predicable on time and duplicate can result.
https://dbfiddle.uk/?rdbms=mariadb_10.3&fiddle=11ff9431a36876d4ee7d6d3e7daa0c80
Probably on 10.2 too.
- is caused by
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MDEV-4958
Adding datatype UUID
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-
Closed
Transition |
Time In Source Status |
Execution Times |
Open |
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Closed |
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18m 27s
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1
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