*** sql/opt_range.cc	Sat Feb 24 14:14:11 2007
--- ../mysql-5.0.bk/sql/opt_range.cc	Sun Feb 25 19:40:39 2007
***************
*** 179,188 ****
    SEL_ARG(Field *,const char *,const char *);
    SEL_ARG(Field *field, uint8 part, char *min_value, char *max_value,
  	  uint8 min_flag, uint8 max_flag, uint8 maybe_flag);
!   SEL_ARG(enum Type type_arg)
!     :min_flag(0),elements(1),use_count(1),left(0),next_key_part(0),
!     color(BLACK), type(type_arg)
!   {}
    inline bool is_same(SEL_ARG *arg)
    {
      if (type != arg->type || part != arg->part)
--- 179,188 ----
    SEL_ARG(Field *,const char *,const char *);
    SEL_ARG(Field *field, uint8 part, char *min_value, char *max_value,
  	  uint8 min_flag, uint8 max_flag, uint8 maybe_flag);
!   SEL_ARG(enum Type type_arg);
!     //  :min_flag(0),elements(1),use_count(1),left(0),next_key_part(0),
!     //  color(BLACK), type(type_arg)
!     //{}
    inline bool is_same(SEL_ARG *arg)
    {
      if (type != arg->type || part != arg->part)
***************
*** 1313,1318 ****
--- 1313,1319 ----
  
  SEL_ARG::SEL_ARG(SEL_ARG &arg) :Sql_alloc()
  {
+   if (this) {
    type=arg.type;
    min_flag=arg.min_flag;
    max_flag=arg.max_flag;
***************
*** 1324,1329 ****
--- 1325,1331 ----
    max_value=arg.max_value;
    next_key_part=arg.next_key_part;
    use_count=1; elements=1;
+   }
  }
  
  
***************
*** 1336,1357 ****
  }
  
  SEL_ARG::SEL_ARG(Field *f,const char *min_value_arg,const char *max_value_arg)
!   :min_flag(0), max_flag(0), maybe_flag(0), maybe_null(f->real_maybe_null()),
!    elements(1), use_count(1), field(f), min_value((char*) min_value_arg),
!    max_value((char*) max_value_arg), next(0),prev(0),
!    next_key_part(0),color(BLACK),type(KEY_RANGE)
! {
!   left=right= &null_element;
  }
  
  SEL_ARG::SEL_ARG(Field *field_,uint8 part_,char *min_value_,char *max_value_,
  		 uint8 min_flag_,uint8 max_flag_,uint8 maybe_flag_)
!   :min_flag(min_flag_),max_flag(max_flag_),maybe_flag(maybe_flag_),
!    part(part_),maybe_null(field_->real_maybe_null()), elements(1),use_count(1),
!    field(field_), min_value(min_value_), max_value(max_value_),
!    next(0),prev(0),next_key_part(0),color(BLACK),type(KEY_RANGE)
! {
!   left=right= &null_element;
  }
  
  SEL_ARG *SEL_ARG::clone(SEL_ARG *new_parent,SEL_ARG **next_arg)
--- 1338,1408 ----
  }
  
  SEL_ARG::SEL_ARG(Field *f,const char *min_value_arg,const char *max_value_arg)
!   //  :min_flag(0), max_flag(0), maybe_flag(0), maybe_null(f->real_maybe_null()),
!   // elements(1), use_count(1), field(f), min_value((char*) min_value_arg),
!   // max_value((char*) max_value_arg), next(0),prev(0),
!   // next_key_part(0),color(BLACK),type(KEY_RANGE)
! {
!   if (this) {
!     left=right= &null_element;
! 
!     min_flag= 0;
!     max_flag= 0;
!     maybe_flag= 0;
!     maybe_null= f->real_maybe_null();
!     elements= 1;
!     use_count= 1;
!     field= f;
!     min_value= (char*) min_value_arg;
!     max_value= (char*) max_value_arg;
!     next= 0;
!     prev= 0;
!     next_key_part= 0;
!     color= BLACK;
!     type= KEY_RANGE;
!   }
  }
  
  SEL_ARG::SEL_ARG(Field *field_,uint8 part_,char *min_value_,char *max_value_,
  		 uint8 min_flag_,uint8 max_flag_,uint8 maybe_flag_)
!   // :min_flag(min_flag_),max_flag(max_flag_),maybe_flag(maybe_flag_),
!   // part(part_),maybe_null(field_->real_maybe_null()), elements(1),use_count(1),
!   // field(field_), min_value(min_value_), max_value(max_value_),
!   // next(0),prev(0),next_key_part(0),color(BLACK),type(KEY_RANGE)
! {
!   if (this) {
!     left=right= &null_element;
!     min_flag= min_flag_;
!     max_flag= max_flag_;
!     maybe_flag= maybe_flag_;
!     part= part_;
!     maybe_null= field_->real_maybe_null();
!     elements= 1;
!     use_count= 1;
!     field= field_;
!     min_value= min_value_;
!     max_value= max_value_;
!     next= 0;
!     prev= 0;
!     next_key_part= 0;
!     color= BLACK;
!     type= KEY_RANGE;
!   }
! }
! 
! SEL_ARG::SEL_ARG(enum Type type_arg)
!   //  :min_flag(0),elements(1),use_count(1),left(0),next_key_part(0),
!   // color(BLACK), type(type_arg)
! {
!   if (this) {
!     type     = type_arg;
!     min_flag = 0;
!     elements = 1;
!     use_count= 1;
!     left     = 0;
!     next_key_part= 0;
!     color    = BLACK;
!   }
  }
  
  SEL_ARG *SEL_ARG::clone(SEL_ARG *new_parent,SEL_ARG **next_arg)
***************
*** 1460,1466 ****
  
  SEL_ARG *SEL_ARG::clone_tree()
  {
!   SEL_ARG tmp_link,*next_arg,*root;
    next_arg= &tmp_link;
    root= clone((SEL_ARG *) 0, &next_arg);
    next_arg->next=0;				// Fix last link
--- 1511,1517 ----
  
  SEL_ARG *SEL_ARG::clone_tree()
  {
!   SEL_ARG tmp_link,*next_arg,*root;  
    next_arg= &tmp_link;
    root= clone((SEL_ARG *) 0, &next_arg);
    next_arg->next=0;				// Fix last link