perl mysql-test-run.pl main.1st --valgrind-mysqld

==30728== Thread 4:
==30728== Conditional jump or move depends on uninitialised value(s)
==30728==    at 0x6E2414: Item_equal::fix_fields(THD*, Item**) (item_cmpfunc.cc:5982)
==30728==    by 0x5D7350: build_equal_items_for_cond(THD*, Item*, COND_EQUAL*, bool) (sql_select.cc:12199)
==30728==    by 0x5D7A9B: build_equal_items(JOIN*, Item*, COND_EQUAL*, List<TABLE_LIST>*, bool, COND_EQUAL**, bool) (sql_select.cc:12331)
==30728==    by 0x5D7C49: optimize_cond(JOIN*, Item*, List<TABLE_LIST>*, bool, Item::cond_result*, COND_EQUAL**, int) (sql_select.cc:13875)
==30728==    by 0x5D8040: JOIN::optimize_inner() (sql_select.cc:1162)
==30728==    by 0x5DB220: JOIN::optimize() (sql_select.cc:1003)
==30728==    by 0x5DD9EA: mysql_select(THD*, Item***, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) (sql_select.cc:3207)
==30728==    by 0x5DE6FC: handle_select(THD*, LEX*, select_result*, unsigned long) (sql_select.cc:371)
==30728==    by 0x58C468: execute_sqlcom_select(THD*, TABLE_LIST*) (sql_parse.cc:5043)
==30728==    by 0x5927AB: mysql_execute_command(THD*) (sql_parse.cc:2483)
==30728==    by 0x7A58DD: sp_instr_stmt::exec_core(THD*, unsigned int*) (sp_head.cc:3189)
==30728==    by 0x7AB4FD: sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*) (sp_head.cc:2983)
==30728==    by 0x7AB993: sp_instr_stmt::execute(THD*, unsigned int*) (sp_head.cc:3121)
==30728==    by 0x7A856F: sp_head::execute(THD*, bool) (sp_head.cc:1427)
==30728==    by 0x7A9A26: sp_head::execute_procedure(THD*, List<Item>*) (sp_head.cc:2184)
==30728==    by 0x594DAC: mysql_execute_command(THD*) (sql_parse.cc:4480)

revision-id: sergii@pisem.net-20130610064025-makoe3xkewwwky8j
revno: 3761
branch-nick: 10.0-rel
BUILD/compile-pentium-max

5951:bool Item_equal::fix_fields(THD *thd, Item **ref)
5952:{ 
5953:  DBUG_ASSERT(fixed == 0);
5954:  Item_equal_fields_iterator it(*this);
5955:  Item *item;
5956:  Field *first_equal_field;
5957:  Field *last_equal_field;
5958:  Field *prev_equal_field= NULL;
5959:  not_null_tables_cache= used_tables_cache= 0;
5960:  const_item_cache= 0;
5961:  while ((item= it++))
5962:  {
5963:    table_map tmp_table_map;
5964:    used_tables_cache|= item->used_tables();
5965:    tmp_table_map= item->not_null_tables();
5966:    not_null_tables_cache|= tmp_table_map;
5967:    DBUG_ASSERT(!item->with_sum_func && !item->with_subselect);
5968:    if (item->maybe_null)
5969:      maybe_null= 1;
5970:    if (!item->get_item_equal())
5971:      item->set_item_equal(this);
5972:    if (link_equal_fields && item->real_item()->type() == FIELD_ITEM)
5973:    {
5974:      last_equal_field= ((Item_field *) (item->real_item()))->field;
5975:      if (!prev_equal_field)
5976:        first_equal_field= last_equal_field;
5977:      else
5978:        prev_equal_field->next_equal_field= last_equal_field;
5979:      prev_equal_field= last_equal_field;         
5980:    }
5981:  }
5982:  if (prev_equal_field && last_equal_field != first_equal_field)
5983:    last_equal_field->next_equal_field= first_equal_field;
5984:  fix_length_and_dec();
5985:  fixed= 1;
5986:  return FALSE;
5987:}