MySQL 9.5 Reference Manual Including MySQL NDB Cluster 9.5
The TABLES_EXTENSIONS table provides
information about table attributes defined for primary and
secondary storage engines.
The TABLES_EXTENSIONS table is
reserved for future use.
The TABLES_EXTENSIONS table has these
columns:
TABLE_CATALOG
The name of the catalog to which the table belongs. This value
is always def.
TABLE_SCHEMA
The name of the schema (database) to which the table belongs.
TABLE_NAME
The name of the table.
ENGINE_ATTRIBUTE
Table attributes defined for the primary storage engine. Reserved for future use.
SECONDARY_ENGINE_ATTRIBUTE
Table attributes defined for the secondary storage engine. Reserved for future use.