protected function joinToSubScopeQuery()
{
return <<<'ENG'
Join with: [
Order according to: { return $__i; } with parameters: [$__this] asc or desc
Map according to: { return $__i; } with parameters: [$__this]
Starting from and up to the specified element
] and correlate the values according to: { return [$__o, $__i]; } with parameters: [$__this]
Get the elements as itself
ENG;
}