Function create_internal_tmp_table_from_heap

sql/sql_select.cc:23789–23927

bool
create_internal_tmp_table_from_heap(THD *thd, TABLE *table,
                                    TMP_ENGINE_COLUMNDEF *start_recinfo,
                                    TMP_ENGINE_COLUMNDEF **recinfo, 
                                    int error,
                                    bool ignore_last_dupp_key_error,
                                    bool *is_duplicate)
{
  TABLE new_table;
  TABLE_SHARE share;
  const char *save_proc_info;
  int write_err= 0;
  String tmp_alias;
  DBUG_ENTER("create_internal_tmp_table_from_heap");
  if (is_duplicate)
    *is_duplicate= FALSE;

  if (table->s->db_type() != heap_hton || error != HA_ERR_RECORD_FILE_FULL)
  {
    /*
      We don't want this error to be converted to a warning, e.g. in case of
      INSERT IGNORE ... SELECT.
    */
    table->file->print_error(error, MYF(ME_FATAL));
    DBUG_RETURN(1);
  }
  new_table= *table;
  share= *table->s;
  new_table.s= &share;
  new_table.s->db_plugin= ha_lock_engine(thd, TMP_ENGINE_HTON);
  if (unlikely(!(new_table.file= get_new_handler(&share, &new_table.mem_root,
                                                 TMP_ENGINE_HTON))))
    DBUG_RETURN(1);				// End of memory

  if (unlikely(new_table.file->set_ha_share_ref(&share.ha_share)))
  {
    delete new_table.file;
    DBUG_RETURN(1);
  }

  save_proc_info=thd->proc_info;
  THD_STAGE_INFO(thd, stage_converting_heap_to_myisam);

  new_table.no_rows= table->no_rows;
  if (create_internal_tmp_table(&new_table, table->key_info, start_recinfo,
                                recinfo,
                                thd->lex->first_select_lex()->options |
			        thd->variables.option_bits))
    goto err2;
  if (open_tmp_table(&new_table))
  {
    TMP_ENGINE_HTON->drop_table(TMP_ENGINE_HTON, new_table.s->path.str);
    goto err2;
  }
  if (table->file->indexes_are_disabled())
    new_table.file->ha_disable_indexes(key_map(0), false);
  table->file->ha_index_or_rnd_end();
  if (table->file->ha_rnd_init_with_error(1))