sql_string.cc:

  We finally decided that national character set is utf8 :)

sql/sql_string.cc

@@ -30,7 +30,7 @@
 
 CHARSET_INFO *system_charset_info= &my_charset_utf8;
 CHARSET_INFO *files_charset_info= &my_charset_utf8;
-CHARSET_INFO *national_charset_info= &my_charset_latin1;
+CHARSET_INFO *national_charset_info= &my_charset_utf8;
 
 extern gptr sql_alloc(unsigned size);
 extern void sql_element_free(void *ptr);