Do less statistics calculations for tables
dict0mem.h, row0mysql.c:
  Make calculation of new statistics less frequent, because the statistics in 3.23.44 involves many random disk reads


innobase/include/dict0mem.h:
  Do less statistics calculations for tables
innobase/row/row0mysql.c:
  Do less statistics calculations for tables
innobase/dict/dict0dict.c:
  Do less statistics calculations for tables
innobase/dict/dict0mem.c:
  Do less statistics calculations for tables