information_schema.index_statistics.table_schema

mysql

mariadb

type: VARCHAR(192) NULL
Note:
The schema (database) name.
© 2022 MariaDB
5.1-10.8
type: VARCHAR(192) NOT NULL
Note:
The schema (database) name.
© 2022 MariaDB
10.2-10.7

tidb

postgres

cockroachdb

mssql