Neil Conway <[EMAIL PROTECTED]> writes:
> This patch changes int2_avg_accum() and int4_avg_accum() use the nodeAgg 
> performance hack Tom introduced recently.

Why only those two?  Might as well make all the accum functions look alike.

> It is possible that the transition array might be TOAST'ed (not that I'd 
> expect that to occur in practice, of course).

AFAICS that is impossible, since the transition value is never stored to
disk.  But your analysis is good anyway.

                        regards, tom lane

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