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merge

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sql/sql_yacc.yy:
  Auto merged
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unknown
2003-10-07 08:51:09 +03:00
parent 67b5aa64c9 45b96bb8af
commit 451cd9e37c
3 changed files with 59 additions and 56 deletions
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33
sql/item_subselect.h
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@ -75,7 +75,7 @@ public:
pointer in constructor initialization list, but we need pass pointer
to subselect Item class to select_subselect classes constructor.
*/
virtual void init (THD *thd, st_select_lex *select_lex,
virtual void init (st_select_lex *select_lex,
select_subselect *result);
~Item_subselect();
@ -122,7 +122,7 @@ class Item_singlerow_subselect :public Item_subselect
protected:
Item_cache *value, **row;
public:
Item_singlerow_subselect(THD *thd, st_select_lex *select_lex);
Item_singlerow_subselect(st_select_lex *select_lex);
Item_singlerow_subselect(Item_singlerow_subselect *item):
Item_subselect(item)
{
@ -171,7 +171,7 @@ protected:
longlong value; /* value of this item (boolean: exists/not-exists) */
public:
Item_exists_subselect(THD *thd, st_select_lex *select_lex);
Item_exists_subselect(st_select_lex *select_lex);
Item_exists_subselect(Item_exists_subselect *item):
Item_subselect(item)
{
@ -214,7 +214,7 @@ protected:
public:
Item_func_not_all *upper_not; // point on NOT before ALL subquery
Item_in_subselect(THD *thd, Item * left_expr, st_select_lex *select_lex);
Item_in_subselect(Item * left_expr, st_select_lex *select_lex);
Item_in_subselect(Item_in_subselect *item);
Item_in_subselect()
:Item_exists_subselect(), abort_on_null(0), upper_not(0) {}
@ -250,7 +250,7 @@ protected:
compare_func_creator func;
public:
Item_allany_subselect(THD *thd, Item * left_expr, compare_func_creator f,
Item_allany_subselect(Item * left_expr, compare_func_creator f,
st_select_lex *select_lex);
Item_allany_subselect(Item_allany_subselect *item);
// only ALL subquery has upper not
@ -268,16 +268,19 @@ protected:
bool maybe_null; /* may be null (first item in select) */
public:
subselect_engine(THD *thd, Item_subselect *si, select_subselect *res)
subselect_engine(Item_subselect *si, select_subselect *res)
:thd(0)
{
result= res;
item= si;
this->thd= thd;
res_type= STRING_RESULT;
maybe_null= 0;
}
virtual ~subselect_engine() {}; // to satisfy compiler
// set_thd should be called before prepare()
void set_thd(THD *thd) { this->thd= thd; }
THD * get_thd() { return thd; }
virtual int prepare()= 0;
virtual void fix_length_and_dec(Item_cache** row)= 0;
virtual int exec()= 0;
@ -297,7 +300,7 @@ class subselect_single_select_engine: public subselect_engine
st_select_lex *select_lex; /* corresponding select_lex */
JOIN * join; /* corresponding JOIN structure */
public:
subselect_single_select_engine(THD *thd, st_select_lex *select,
subselect_single_select_engine(st_select_lex *select,
select_subselect *result,
Item_subselect *item);
int prepare();
@ -313,8 +316,7 @@ class subselect_union_engine: public subselect_engine
{
st_select_lex_unit *unit; /* corresponding unit structure */
public:
subselect_union_engine(THD *thd,
st_select_lex_unit *u,
subselect_union_engine(st_select_lex_unit *u,
select_subselect *result,
Item_subselect *item);
int prepare();
@ -334,10 +336,13 @@ protected:
Item *cond;
public:
// constructor can assign THD because it will be called after JOIN::prepare
subselect_uniquesubquery_engine(THD *thd, st_join_table *tab_arg,
Item_subselect *subs, Item *where)
:subselect_engine(thd, subs, 0), tab(tab_arg), cond(where)
{}
:subselect_engine(subs, 0), tab(tab_arg), cond(where)
{
set_thd(thd);
}
int prepare();
void fix_length_and_dec(Item_cache** row);
@ -353,6 +358,8 @@ class subselect_indexsubquery_engine: public subselect_uniquesubquery_engine
{
bool check_null;
public:
// constructor can assign THD because it will be called after JOIN::prepare
subselect_indexsubquery_engine(THD *thd, st_join_table *tab_arg,
Item_subselect *subs, Item *where,
bool chk_null)