The plugin has detected that you use a multisite installation. This is your main site from which you can optimize all tables of all sites in your network. Other sites can optimize their own tables only.
prefix ); $adbc_sql = "SELECT table_name, data_free FROM information_schema.tables WHERE table_schema = '".DB_NAME."' and data_free > 0"; if(!is_main_site()){ $adbc_sql = $adbc_sql . " and table_name LIKE '{$prefix}%'"; } $result = $wpdb->get_results($adbc_sql); foreach($result as $row){ $total_tables_to_optimize += 1; $total_lost += $row->data_free; echo "\n"; } if($total_lost == 0){ echo ""; } ?>
". $row->table_name ." ". $row->data_free . ' o' ."
". __('All tables are optimized!','advanced-db-cleaner') ."
o'; ?>

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Your database is optimized!
table(s) should be optimized!
 Schedule
 Next run:
 Please note that
  • "Optimizing" reduces storage space and improves efficiency when accessing your tables.
  • Except tables listed in the table above, all your other tables are already optimized.
  • It is not necessary to run the optimization frequently, just do it from time to time.