Method create_length_to_internal_length

sql/sql_table.cc:1176–1221

*/

void Create_field::create_length_to_internal_length(void)
{
  switch (sql_type) {
    case MYSQL_TYPE_TINY_BLOB:
    case MYSQL_TYPE_MEDIUM_BLOB:
    case MYSQL_TYPE_LONG_BLOB:
    case MYSQL_TYPE_BLOB:
    case MYSQL_TYPE_GEOMETRY:
    case MYSQL_TYPE_VAR_STRING:
    case MYSQL_TYPE_STRING:
    case MYSQL_TYPE_VARCHAR:
      length*= charset->mbmaxlen;
          key_length= length;
          pack_length= calc_pack_length(sql_type, length);
          break;
    case MYSQL_TYPE_ENUM:
    case MYSQL_TYPE_SET:
      /* Pack_length already calculated in sql_parse.cc */
      length*= charset->mbmaxlen;
          key_length= pack_length;
          break;
    case MYSQL_TYPE_BIT:
      if (f_bit_as_char(pack_flag))
      {
        key_length= pack_length= ((length + 7) & ~7) / 8;
      }
      else
      {
        pack_length= length / 8;
        /* We need one extra byte to store the bits we save among the null bits */
        key_length= pack_length + MY_TEST(length & 7);
      }
          break;
    case MYSQL_TYPE_NEWDECIMAL:
      key_length= pack_length=
              my_decimal_get_binary_size(my_decimal_length_to_precision(length,
                                                                        decimals,
                                                                        flags &
                                                                        UNSIGNED_FLAG),
                                         decimals);
          break;
    default:
      key_length= pack_length= calc_pack_length(sql_type, length);
          break;
  }
}


/*