I have bench marked the two patches now and failed to measure any
speedup or slowdown from the first patch (removing return) but I think
it is a good idea anyway.
For the second patch (optimize strict) I managed to measure a ~1% speed
up for the following query "SELECT sum(x + y + 1) FROM t;" over one
million rows.
I would say both patches are ready for committer modulo my proposed
style fixes.
Andreas