MySQL 5.7 Reference Manual Including MySQL NDB Cluster 7.5 and NDB Cluster 7.6
The dict_obj_types table is a static table
listing possible dictionary object types used in the NDB kernel.
These are the same types defined by
Object::Type in the NDB API.
The dict_obj_types table contains the
following columns:
type_id
The type ID for this type
type_name
The name of this type