MySQL 8.3 Release Notes
The TABLE_CONSTRAINTS_EXTENSIONS table provides information about table constraint attributes defined for primary and secondary storage engines.
Note
The TABLE_CONSTRAINTS_EXTENSIONS table is reserved for future use.
The TABLE_CONSTRAINTS_EXTENSIONS table has these columns:
-
CONSTRAINT_CATALOGThe name of the catalog to which the table belongs.
-
CONSTRAINT_SCHEMAThe name of the schema (database) to which the table belongs.
-
CONSTRAINT_NAMEThe name of the constraint.
-
TABLE_NAMEThe name of the table.
-
ENGINE_ATTRIBUTEConstraint attributes defined for the primary storage engine. Reserved for future use.
-
SECONDARY_ENGINE_ATTRIBUTEConstraint attributes defined for the secondary storage engine. Reserved for future use.