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class Item_func_rpad :public Item_str_func
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String tmp_value, rpad_str;
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Item_func_rpad(Session &session_arg, Item *arg1, Item *arg2, Item *arg3) :
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Item_str_func(arg1,arg2,arg3),
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String *val_str(String *);
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void fix_length_and_dec();
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const char *func_name() const { return "rpad"; }