mysql-test/r/ndb_index_unique.result:
  bug#15918 fix
mysql-test/t/ndb_index_unique.test:
  bug#15918 fix
ndb/src/kernel/blocks/dbacc/Dbacc.hpp:
  bug#15918 fix
sql/ha_ndbcluster.cc:
  bug#15918 fix
sql/ha_ndbcluster.h:
  bug#15918 fix