information_schema.tables.engine

mysql

type: VARCHAR NULL
5.7-8

mariadb

type: NULL
Note:
Storage Engine.
© 2022 MariaDB
5.1-10.8

tidb

type: VARCHAR(64) NULL
Note:
The type of the storage engine. The value is currently InnoDB.
© 2022 PingCAP
4-6.1

postgres

cockroachdb

mssql