Longest wave ever surfed?

Hi guys,
I was wondering if Robby Naish (check the video below) has surfed the longest wave ever, or is there somebody else who stood even longer on a wave (I mean oceanic waves, no river waves)?
Video (not mine of course):
Greets,
I was wondering if Robby Naish (check the video below) has surfed the longest wave ever, or is there somebody else who stood even longer on a wave (I mean oceanic waves, no river waves)?
Video (not mine of course):
Greets,