information_schema.routines.character_set_schema

mysql

mariadb

tidb

postgres

type: SQL_IDENTIFIER NULL
Note:
Applies to a feature not available in PostgreSQL
© 1996-2022 The PostgreSQL Global Development Group
10-15
type: SQL_IDENTIFIER
Note:
Applies to a feature not available in PostgreSQL
© 1996-2022 The PostgreSQL Global Development Group
7.4-9.6

cockroachdb

type: NULL
Note:
Always NULL.
© 2022 CockroachDB
20.1-21.1

mssql

type: NVARCHAR(128) NULL
Note:
Always returns NULL.
© Microsoft 2022
aps-pdw-2016-sql-server-ver15