How to hide null relationships on table

// ApplicationResource
$table
->columns([
    Tables\Columns\TextColumn::make('title')
        ->searchable(),
    Tables\Columns\TextColumn::make('vacancy.title')
        ->url(fn (Application $application): string => VacancyResource::getUrl('edit', ['record' => $application->vacancy_id])),
    Tables\Columns\TextColumn::make('created_at')
        ->label('Received')
        ->dateTime(),
])
...