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Fixed that LEFT OUTER JOIN was replaced with a regulat join

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in some cases, because "charset(x) = 'string'" was considered
as "x is not null" due to incorrect not_null_tables().
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unknown 2005-03-24 18:10:46 +04:00
commit 9b2e4c7c60
4 changed files with 40 additions and 1 deletions
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3
sql/item_func.h
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@ -616,7 +616,8 @@ public:
Item_func_coercibility(Item *a) :Item_int_func(a) {}
longlong val_int();
const char *func_name() const { return "coercibility"; }
void fix_length_and_dec() { max_length=10; }
void fix_length_and_dec() { max_length=10; maybe_null= 0; }
table_map not_null_tables() const { return 0; }
};
class Item_func_locate :public Item_int_func