MySQL 8.0 Reference Manual
MySQL 8.0 Release Notes
The hash map's unique ID
Hash map version (integer)
Hash map state; see Object::State for values and descriptions.
The hash map's fully qualified name
hash_maps table is actually a view
consisting of the four columns having the same names of the
dict_obj_info table, as shown
CREATE VIEW hash_maps AS SELECT id, version, state, fq_name FROM dict_obj_info WHERE type=24; # Hash map; defined in dict_obj_types
See the description of
dict_obj_info for more
hash_maps table was added in NDB 8.0.29.