public SelectExtender::countQuery()

public SelectExtender::escapeLike($string)

public SelectExtender::orderRandom()

public SelectExtender::addMetaData($key, $object)

public SelectExtender::union(SelectInterface $query, $type =

public SelectExtender::compile(Connection $connection, PlaceholderInterface

SelectExtender::isNull($field) Sets

public SelectExtender::conditionGroupFactory($conjunction =

public SelectExtender::isPrepared()

The placeholder counter. File core/lib/Drupal/Core/Database/Query/SelectExtender.php, line 34