MIN(key_column) could in some cases return NULL on a column with NULL and other values.
MIN(key_column) and MAX(key_column) could in some cases return wrong values when used in OUTER JOIN.


configure.in:
  Updated version number
libmysqld/libmysqld.c:
  Portability fix (for windows)
mysql-test/r/func_group.result:
  Added test case for MIN/MAX problems
mysql-test/t/func_group.test:
  Added test case for MIN/MAX problems
sql/item.h:
  Fix for MIN/MAX with empty tables
sql/item_sum.h:
  Fix for MIN/MAX with empty tables
sql/opt_sum.cc:
  MIN(key_column) could in some cases return NULL on a column
  with NULL and other values.
  MIN(key_column) and MAX(key_column) could in some cases
  return wrong values when used in OUTER JOIN.
sql/sql_select.cc:
  Fix for MIN/MAX with empty tables