`information_schema.columns.is_self_referencing`

mysql

mariadb

tidb

postgres

type: YES_OR_NO NULL

Note:

Applies to a feature not available in PostgreSQL

© 1996-2022 The PostgreSQL Global Development Group

10-15

type: CHARACTER_DATA

Note:

Applies to a feature not available in PostgreSQL

© 1996-2022 The PostgreSQL Global Development Group

7.4-9.6

cockroachdb

type: unknown

Note:

Always NULL (unsupported by CockroachDB).

© 2022 CockroachDB

20.1-21.2

mssql