Re: Special-case executor expression steps for common combinations

> On 22 Jul 2024, at 23:25, Andreas Karlsson <andreas(at)proxel(dot)se> wrote:
>
> 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.

That's expected, this is mostly about refactoring the code to simplifying the
JITed code (and making tiny strides towards JIT expression caching).

> I would say both patches are ready for committer modulo my proposed style fixes.

I am a bit wary about removing the out_error label and goto since it may open
up for reports from static analyzers about control reaching the end of a
non-void function without a return. The other change has been incorporated.

The attached v3 is a rebase to handle executor changes done since v2, with the
above mentioned fix as well. If there are no objections I think we should
apply this version.

--
Daniel Gustafsson