database1(), 'Yield', [ ['Tree'], ['=Apple'], ['=Pear'], ], ], [ 10, $this->database1(), 'Yield', [ ['Tree', 'Height', 'Height'], ['=Apple', '>10', '<16'], ['=Pear', '>12', null], ], ], [ 188000, $this->database2(), 'Sales', [ ['Sales Rep.', 'Quarter'], ['Tina', 4], ], ], [ Functions::NAN(), $this->database2(), 'Sales', [ ['Area', 'Quarter'], ['South', 4], ], ], [ null, $this->database1(), null, $this->database1(), ], ]; } }