public SelectInterface::having($snippet, $args = array())

public PagerSelectExtender::__construct(SelectInterface

public TableSortExtender::__construct(SelectInterface

public Query::comment($comment) Adds a

public Condition::orConditionGroup() Creates

public SelectExtender::havingIsNull($field)

public SelectInterface::groupBy($field)

protected PagerSelectExtender::ensureElement()

public Delete::__toString() Implements

Interface for extendable query objects. "Extenders" follow the "Decorator" OOP design pattern. That is, they wrap and "decorate" another object