Re: avg(int2) and avg(int8) micro-opt

Tom Lane wrote:
> Why only those two?  Might as well make all the accum functions look alike.

Yeah, there might be some others we could improve. float4_accum() and
float8_accum() look like they could be improved pretty easily, and
do_numeric_accum() should also be fixable with some hackery. I suppose
it's also worth optimizing int2_sum(), int4_sum() and int8_sum(). I'll
send a patch for this later today or tomorrow. Are there any other
transition functions where we can apply this technique?

BTW, int2_avg_accum() and int4_avg_accum() patch applied to HEAD.

-Neil