/**
* Get a list of all Token Ranges tables that could be used by this script.
* In most cases this will only return 1 table but if the script is using
* sharded tables then this will return all of them.
*
* @return string[]
*/
public function listAllRangeTables()
{
$tables = [];
$db = TokenRange::conn();
$tableName = TokenRange::tableName();
if (strpos($tableName, '_') !== false) {
$parts = explode("_", $tableName);
$last = array_pop($parts);
if (is_numeric($last)) {
$tableBase = implode("_", $parts) . '_';
$i = 1;
while (true) {
$table = $tableBase . $i;
$res = $db->numRows("SHOW TABLES LIKE '" . $table . "'");
if ($res > 0) {
$tables[] = $table;
} else {
break;
}
$i++;
}
}
}
if (count($tables) == 0) {
$tables = [$tableName];
}
return $tables;
}
