Function mysql_prepare_create_table_finalize

sql/sql_table.cc:3257–4115

*/

static int
mysql_prepare_create_table_finalize(THD *thd, HA_CREATE_INFO *create_info,
                                    Alter_info *alter_info, uint *db_options,
                                    handler *file, KEY **key_info_buffer,
                                    uint *key_count, int create_table_mode)
{
  Lex_ident_column key_name;
  Create_field	*sql_field,*dup_field;
  uint		field,null_fields;
  ulong		record_offset= 0;
  KEY_PART_INFO *key_part_info;
  int		field_no,dup_no;
  int		select_field_pos,auto_increment=0;
  List_iterator_fast<Create_field> it(alter_info->create_list);
  List_iterator<Create_field> it2(alter_info->create_list);
  uint total_uneven_bit_length= 0;
  bool tmp_table= create_table_mode == C_ALTER_TABLE;
  const bool create_simple= thd->lex->create_simple();
  const CHARSET_INFO *scs= system_charset_info;
  DBUG_ENTER("mysql_prepare_create_table");

  select_field_pos= get_select_field_pos(alter_info, create_info->versioned());
  null_fields= 0;
  create_info->varchar= 0;

  /* Handle creation of sequences */
  if (create_info->sequence)
  {
    if (!(file->ha_table_flags() & HA_CAN_TABLES_WITHOUT_ROLLBACK))
    {
      my_error(ER_ILLEGAL_HA_CREATE_OPTION, MYF(0), file->table_type(),
               SEQUENCE_clex_str.str);
      DBUG_RETURN(TRUE);
    }

    /* The user specified fields: check that structure is ok */
    if (check_sequence_fields(thd->lex, &alter_info->create_list,
                              alter_info->db, alter_info->table_name))
      DBUG_RETURN(TRUE);
  }


  for (field_no=0; (sql_field=it++) ; field_no++)
  {
    if (!(sql_field->flags & NOT_NULL_FLAG))
      null_fields++;

    if (sql_field->real_field_type() == MYSQL_TYPE_BIT &&
        file->ha_table_flags() & HA_CAN_BIT_FIELD)
      total_uneven_bit_length+= sql_field->length & 7;

    /* Check if we have used the same field name before */
    for (dup_no=0; (dup_field=it2++) != sql_field; dup_no++)
    {
      if (sql_field->field_name.streq(dup_field->field_name))
      {
	/*
	  If this was a CREATE ... SELECT statement, accept a field