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67
int cmp(const unsigned char *,const unsigned char *);
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68
void sort_string(unsigned char *buff,uint32_t length);
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69
uint32_t pack_length() const { return 4; }
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uint32_t max_display_length() { return MY_INT32_NUM_DECIMAL_DIGITS; }
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virtual unsigned char *pack(unsigned char* to, const unsigned char *from,