Stores the entity manager used by the query. Type:

The SQL storage entity query class. Hierarchy class \Drupal\Core\Entity\Query\

protected QueryBase::getAggregationAlias($field, $function)

The entity manager. Type:

public ConditionAggregateInterface::exists($field

Defines a interface for aggregated entity queries. Hierarchy interface \Drupal\Co

public QueryInterface::exists($field, $langcode = NULL)

public QueryInterface::execute() Execute

Exception thrown by Query() on unsupported query syntax. Some storage modules might not support the full range of the syntax for conditions

public ConditionAggregate::exists($field, $function