Db::getDeleteColumn() 

\nn\t3::Db()->getDeleteColumn($table = ''); 

Get delete column for specific table.

This column is used as a flag for deleted data records. Normally: deleted = 1

public function getDeleteColumn ( $table = '' )
{
	$ctrl = $GLOBALS['TCA'][$table]['ctrl'] ?? [];
	return $ctrl['delete'] ?? false;
}