The identifier of the query placeholder this condition has been compiled against. File core/lib/Drup

public Query::__sleep() Implements the

public Select::preExecute(SelectInterface $query = NULL)

public Select::havingExists(SelectInterface $select)

public Select::having($snippet, $args = array()) Adds

abstract protected Query::execute() Runs

public Merge::fields(array $fields, array $values = array())

public SelectExtender::addExpression($expression, $alias = NULL

public Select::getMetaData($key) Retrieves

public SelectExtender::orderBy($field, $direction = 'ASC')