Function init_key_part_spec

sql/sql_table.cc:2911–3083

}

static
my_bool init_key_part_spec(THD *thd, Alter_info *alter_info,
                           const handler *file,
                           const Key &key, Key_part_spec &kp,
                           uint max_key_length, uint max_key_part_length,
                           bool *is_hash_field_needed)
{
  DBUG_ENTER("init_key_part_spec");

  const Lex_ident_column &field_name= kp.field_name;
  Create_field *column= NULL;

  for (Create_field &c: alter_info->create_list)
    if (c.field_name.streq(field_name))
      column= &c;

  /*
    Either field is not present or field visibility is > INVISIBLE_USER
  */
  if (!column || (column->invisible > INVISIBLE_USER && !kp.generated))
  {
    my_error(ER_KEY_COLUMN_DOES_NOT_EXIST, MYF(0), field_name.str);
    DBUG_RETURN(TRUE);
  }

  if (!DBUG_IF("test_invisible_index")
      && column->invisible > INVISIBLE_USER
      && !(column->flags & VERS_SYSTEM_FIELD) && !key.invisible)
  {
    my_error(ER_KEY_COLUMN_DOES_NOT_EXIST, MYF(0), column->field_name.str);
    DBUG_RETURN(TRUE);
  }

  const Type_handler *type_handler= column->type_handler();
  switch(key.type)
  {
  case Key::VECTOR:
    if (type_handler->Key_part_spec_init_vector(&kp, *column))
    {
      my_error(ER_WRONG_ARGUMENTS, MYF(0), "VECTOR INDEX");
      DBUG_RETURN(TRUE);
    }
    break;
  case Key::FULLTEXT:
    if (type_handler->Key_part_spec_init_ft(&kp, *column))
    {
      my_error(ER_BAD_FT_COLUMN, MYF(0), field_name.str);
      DBUG_RETURN(-1);
    }
    break;

  case Key::SPATIAL:
    if (type_handler->Key_part_spec_init_spatial(&kp, *column))
      DBUG_RETURN(TRUE);
    break;

  case Key::PRIMARY:
    if (column->vcol_info)