https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Database%21Connection.php/function/Connection%3A%3AgetUnprefixedTablesMap/8.9.x
function Connection::getUnprefixedTablesMap | Drupal API
functionconnectiondrupalapi
https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Database%21Connection.php/function/Connection%3A%3AgetUnprefixedTablesMap/10
function Connection::getUnprefixedTablesMap | Drupal API
functionconnectiondrupalapi