`information_schema.columns.collation_schema`

mysql

type: SQL_IDENTIFIER NULL

Note:

Name of the schema containing the collation of the column, null if default or the data type of the column is not collatable

10-15

type: SQL_IDENTIFIER

Note:

Name of the schema containing the collation of the column, null if default or the data type of the column is not collatable

9.2-9.6

Note:

Not yet implemented

9.1

Note:

Applies to a feature not available in PostgreSQL

7.4-9

type: unknown

Note:

Name of the schema containing the collation; NULL if the default collation is used, or if data_type is not collatable.

type: NVARCHAR(128) NULL

Note:

Always returns NULL.