Function sp_prepare_create_field

sql/sql_table.cc:1668–1701

*/

static void sp_prepare_create_field(THD *thd, Create_field *sql_field)
{
  if (sql_field->sql_type == MYSQL_TYPE_SET ||
      sql_field->sql_type == MYSQL_TYPE_ENUM)
  {
    uint32 field_length, dummy;
    if (sql_field->sql_type == MYSQL_TYPE_SET)
    {
      calculate_interval_lengths(sql_field->charset,
                                 sql_field->interval, &dummy, 
                                 &field_length);
      sql_field->length= field_length + 
                         (sql_field->interval->count - 1);
    }
    else /* MYSQL_TYPE_ENUM */
    {
      calculate_interval_lengths(sql_field->charset,
                                 sql_field->interval,
                                 &field_length, &dummy);
      sql_field->length= field_length;
    }
    set_if_smaller(sql_field->length, MAX_FIELD_WIDTH-1);
  }

  if (sql_field->sql_type == MYSQL_TYPE_BIT)
  {
    sql_field->pack_flag= FIELDFLAG_NUMBER |
                          FIELDFLAG_TREAT_BIT_AS_CHAR;
  }
  sql_field->create_length_to_internal_length();
  DBUG_ASSERT(sql_field->def == 0);
  /* Can't go wrong as sql_field->def is not defined */
  (void) prepare_blob_field(thd, sql_field);
}