mysql-test/r/func_group.result:
  add 'VARIANCE' tests
mysql-test/r/having.result:
  add 'VARIANCE' tests
mysql-test/r/select.result:
  add 'VARIANCE' tests
mysql-test/t/func_group.test:
  add 'VARIANCE' tests
mysql-test/t/having.test:
  add 'VARIANCE' tests
mysql-test/t/select.test:
  add 'VARIANCE' tests
sql/item.cc:
  add 'VARIANCE' sum function
sql/item.h:
  add 'VARIANCE' sum function
sql/item_sum.cc:
  add 'VARIANCE' sum function
sql/item_sum.h:
  add 'VARIANCE' sum function
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted