Merge olga.mysql.com:/home/igor/mysql-5.0-opt

into  olga.mysql.com:/home/igor/mysql-5.1-opt


BitKeeper/etc/gone:
  auto-union
mysql-test/r/select.result:
  Auto merged
mysql-test/t/select.test:
  Auto merged
mysys/my_getopt.c:
  Auto merged
sql/field.h:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/table.cc:
  Auto merged