Bruce Momjian <[EMAIL PROTECTED]> writes:
> Tom Lane wrote:
>> Has anyone bothered to measure the overhead added by having to mask to
>> fetch or store the natts value?  This is not a zero-cost improvement.

> Tom, how should this be tested?  I assume some loop of the same query
> over and over again.

I'd be satisfied by a demonstration of no meaningful difference in
pgbench numbers.

It's *probably* not a problem, but you never know if you don't check...

                        regards, tom lane

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