MySQL 8.0 Reference Manual
MySQL 8.0 Release Notes
id
The hash map's unique ID
version
Hash map version (integer)
state
Hash map state; see Object::State for values and descriptions.
fq_name
The hash map's fully qualified name
The hash_maps
table is actually a view
consisting of the four columns having the same names of the
dict_obj_info
table, as shown
here:
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
information.
The hash_maps
table was added in NDB 8.0.29.