`information_schema.statistics.table_schema`

mysql

type: VARCHAR NOT NULL

5.7-8

type: NULL

Note:

Database name.

5.1-10.8

type: VARCHAR NOT NULL

Note:

Database name.

type: VARCHAR(64) NULL

Note:

The name of the database to which the table containing the index belongs.

4-6.1

type: unknown

Note:

Name of the schema that contains the constrained table.

2-21.2

Note:

Name of the database that contains the constrained table.

1-1.1