ON creating BITMAP INDEX on a table in mysql throws error
You are looking at a feature request. See here for this table

Storage Engine  Permissible Index Types
InnoDB  BTREE
MyISAM  BTREE
MEMORY/HEAP HASH, BTREE
NDB HASH, BTREE (see note in text)


They are not even available in 5.7 - they would be a nice to have, but not yet - maybe in the future. Check this out - pages 32 and 33 - not even the columnar stores (InfiniDB and Inforbright) have them yet - AFAICS.