| From: | Geoff Winkless <pgsqladmin(at)geoff(dot)dj> |
|---|---|
| To: | pgsql-general(at)lists(dot)postgresql(dot)org |
| Subject: | Re: simple division |
| Date: | 2018-12-05 11:05:49 |
| Message-ID: | CAEzk6ffEqKAcyin0OG5FoW=ayP0Pz8O2EFi8gKjv7qcSLQ7nVg@mail.gmail.com |
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| Lists: | pgsql-general |
On Wed, 5 Dec 2018 at 09:13, Gavin Flower <GavinFlower(at)archidevsys(dot)co(dot)nz> wrote:
> SELECT ceil(10/4.0);
>
> Is what you want for that example.
Except that implies that "number of people who can fit in a car" is a
real number, not a whole.
IMO it's fundamentally broken that SQL doesn't cast the result of a
divide into a numeric value - the potential for unexpected errors
creeping into calculations is huge; however that's the standard and
no-one's going to change it now.
Having said that it's worth noting that those in the Other Place think
that it's broken enough to go against the standard (they have a DIV b
for integer divide and a/b for float).
Geoff
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