  Field_geom(uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg,
	     enum utype unireg_check_arg, const LEX_CSTRING *field_name_arg,
	     TABLE_SHARE *share, uint blob_pack_length,
	     enum geometry_type geom_type_arg, uint field_srid)
     :Field_blob(ptr_arg, null_ptr_arg, null_bit_arg, unireg_check_arg,
                 field_name_arg, share, blob_pack_length, &my_charset_bin)
  { geom_type= geom_type_arg; srid= field_srid; }
  Field_geom(uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg,
	     enum utype unireg_check_arg, const LEX_CSTRING *field_name_arg,
	     TABLE_SHARE *share, uint blob_pack_length,
	     enum geometry_type geom_type_arg, uint field_srid)
     :Field_blob(ptr_arg, null_ptr_arg, null_bit_arg, unireg_check_arg,
                 field_name_arg, share, blob_pack_length, &my_charset_bin)
  { geom_type= geom_type_arg; srid= field_srid; }