information_schema.domain_constraints.constraint_name

mysql

mariadb

tidb

postgres

type: SQL_IDENTIFIER NULL
Note:
Name of the constraint
© 1996-2022 The PostgreSQL Global Development Group
10-15
type: SQL_IDENTIFIER
Note:
Name of the constraint
© 1996-2022 The PostgreSQL Global Development Group
7.4-9.6

cockroachdb

mssql

type: SYSNAME NULL
Note:
Rule name.
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azuresqldb-current-sql-server-ver15