Commit 4b2020c5 authored by unknown's avatar unknown

Some improvement in Item_int_with_ref class comment.

parent e571163e
......@@ -1027,12 +1027,14 @@ public:
void print(String *str);
};
/*
The following class is used to optimize comparing of date and bigint columns
We need to save the original item, to be able to set the field to the
original value in 'opt_range'.
An instance of Item_int_with_ref may refer to a signed or an unsigned
integer.
We need to save the original item ('ref') to be able to call
ref->save_in_field(). This is used to create index search keys.
An instance of Item_int_with_ref may have signed or unsigned integer value.
*/
class Item_int_with_ref :public Item_int
......
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