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

Interface for a query that accepts placeholders. Hierarchy interface \Drupal\Core\Database\Query\

public SelectExtender::compile(Connection $connection, PlaceholderInterface

public Select::distinct($distinct = TRUE) Sets

SelectExtender::isNull($field) Sets

The number of elements per page to allow. Type: int File

public &Select::getUnion() Returns

The table to update. Type: string File core/lib/Dru

public SelectExtender::conditionGroupFactory($conjunction =

public SelectExtender::isPrepared()