QueryAggregateInterface

class \Drupal\Core\Entity\Query\Null\Query extends \Drupal\Core\Entity\Query\QueryInterface, \Drupal\Core\Entity\Query\QueryAggregateInterface implements \Drupal\Core\Entity\Query\QueryBase
class \Drupal\Core\Entity\Query\Sql\QueryAggregate extends \Drupal\Core\Entity\Query\QueryAggregateInterface implements \Drupal\Core\Entity\Query\Sql\Query

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