MySQL 9.6 Reference Manual Including MySQL NDB Cluster 9.6
The TABLESPACES_EXTENSIONS table
provides information about tablespace attributes defined for
primary storage engines.
The TABLESPACES_EXTENSIONS table is
reserved for future use.
The TABLESPACES_EXTENSIONS table has
these columns:
TABLESPACE_NAME
The name of the tablespace.
ENGINE_ATTRIBUTE
Tablespace attributes defined for the primary storage engine. Reserved for future use.