Method cmp_binary_offset

sql/field.h:1408–1409

  virtual int cmp_offset(my_ptrdiff_t row_offset)
  { return cmp(ptr,ptr+row_offset); }
  virtual int cmp_binary_offset(uint row_offset)
  { return cmp_binary(ptr, ptr+row_offset); };
  virtual int key_cmp(const uchar *a,const uchar *b) const
  { return cmp(a, b); }
  virtual int key_cmp(const uchar *str, uint length) const