information_schema.processlist.tid

mysql

mariadb

type: NULL
Note:
Thread ID (MDEV-6756)
© 2022 MariaDB
5.1-10.8
type: BIGINT NOT NULL
Note:
Thread ID (MDEV-6756)
© 2022 MariaDB
10.2-10.7

tidb

postgres

cockroachdb

mssql