mysql-test/r/derived.result:
  test of BUG#1031
mysql-test/t/derived.test:
  test of BUG#1031
sql/item_sum.cc:
  'alias' parameter added to create_tmp_table
sql/sql_derived.cc:
  Derived table should be named (to pass it name to Field and then to Item_field)
sql/sql_select.cc:
  'alias' parameter added to create_tmp_table
sql/sql_select.h:
  'alias' parameter added to create_tmp_table
sql/sql_union.cc:
  'alias' parameter added to create_tmp_table
sql/sql_update.cc:
  'alias' parameter added to create_tmp_table