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Merge of mwl #106 into 5.3.

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This commit is contained in:
Igor Babaev 2011-06-15 21:48:38 -07:00
commit 078b59f5bc
101 changed files with 4492 additions and 1107 deletions
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65
sql/item_cmpfunc.cc
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@ -2061,6 +2061,16 @@ bool Item_func_between::fix_fields(THD *thd, Item **ref)
thd->lex->current_select->between_count++;
return 0;
}
bool Item_func_between::eval_not_null_tables(uchar *opt_arg)
{
if (Item_func_opt_neg::eval_not_null_tables(NULL))
return 1;
/* not_null_tables_cache == union(T1(e),T1(e1),T1(e2)) */
if (pred_level && !negated)
return 0;
@ -2069,9 +2079,8 @@ bool Item_func_between::fix_fields(THD *thd, Item **ref)
not_null_tables_cache= (args[0]->not_null_tables() |
(args[1]->not_null_tables() &
args[2]->not_null_tables()));
return 0;
}
}
void Item_func_between::fix_length_and_dec()
@ -2438,13 +2447,22 @@ Item_func_if::fix_fields(THD *thd, Item **ref)
if (Item_func::fix_fields(thd, ref))
return 1;
return 0;
}
bool
Item_func_if::eval_not_null_tables(uchar *opt_arg)
{
if (Item_func::eval_not_null_tables(NULL))
return 1;
not_null_tables_cache= (args[1]->not_null_tables() &
args[2]->not_null_tables());
return 0;
}
void
Item_func_if::fix_length_and_dec()
{
@ -3653,11 +3671,22 @@ bool Item_func_in::nulls_in_row()
bool
Item_func_in::fix_fields(THD *thd, Item **ref)
{
Item **arg, **arg_end;
if (Item_func_opt_neg::fix_fields(thd, ref))
return 1;
return 0;
}
bool
Item_func_in::eval_not_null_tables(uchar *opt_arg)
{
Item **arg, **arg_end;
if (Item_func_opt_neg::eval_not_null_tables(NULL))
return 1;
/* not_null_tables_cache == union(T1(e),union(T1(ei))) */
if (pred_level && negated)
return 0;
@ -4028,7 +4057,6 @@ Item_cond::fix_fields(THD *thd, Item **ref)
*/
while ((item=li++))
{
table_map tmp_table_map;
while (item->type() == Item::COND_ITEM &&
((Item_cond*) item)->functype() == functype() &&
!((Item_cond*) item)->list.is_empty())
@ -4050,11 +4078,12 @@ Item_cond::fix_fields(THD *thd, Item **ref)
and_tables_cache= (table_map) 0;
else
{
tmp_table_map= item->not_null_tables();
table_map tmp_table_map= item->not_null_tables();
not_null_tables_cache|= tmp_table_map;
and_tables_cache&= tmp_table_map;
const_item_cache= FALSE;
}
}
with_sum_func= with_sum_func || item->with_sum_func;
with_field= with_field || item->with_field;
with_subselect|= item->with_subselect;
@ -4069,6 +4098,28 @@ Item_cond::fix_fields(THD *thd, Item **ref)
}
bool
Item_cond::eval_not_null_tables(uchar *opt_arg)
{
Item *item;
List_iterator<Item> li(list);
and_tables_cache= ~(table_map) 0;
while ((item=li++))
{
table_map tmp_table_map;
if (item->const_item())
and_tables_cache= (table_map) 0;
else
{
tmp_table_map= item->not_null_tables();
not_null_tables_cache|= tmp_table_map;
and_tables_cache&= tmp_table_map;
}
}
return 0;
}
void Item_cond::fix_after_pullout(st_select_lex *new_parent, Item **ref)
{
List_iterator<Item> li(list);