On Fri, 2 Dec 2022 at 09:02, Tom Lane <tgl@sss.pgh.pa.us> wrote: > > David Rowley <dgrowleyml@gmail.com> writes: > > I don't really agree that it will work fine in all cases though. If > > the numeric has more than 1000 digits left of the decimal point then > > the method won't work at all. > > But what we're talking about is starting from a float4 or float8 > input, so it can't be more than ~308 digits.
I may have misunderstood. I thought David J was proposing this as a useful method for rounding numeric too. Re-reading what he wrote, I no longer think he was.
I was not, my response was that what is being asked for is basically a cast from float to numeric, and doing that via a "round()" function seems odd. And we can handle the desired rounding aspect of that process already via the existing numeric(1000, n) syntax.
