On Thursday, June 12, 2014, Tom Lane <
tgl@sss.pgh.pa.us> wrote:
David G Johnston <david.g.johnston@gmail.com> writes:
> On Thu, Jun 12, 2014 at 10:42 AM, Tom Lane-2 [via PostgreSQL] <
> ml-node+s1045698n5807014h58@n5.nabble.com> wrote:
>> I wonder if we should round fractions up instead of down in that logic?
>> It might be less surprising for those GUCs where zero is special, and
>> it seems like about a wash for most others.
> I think documenting the behavior better,
I don't. If you have to explain it, it probably needs improvement.
No argument with the philosophy.
> Green field maybe I'd say yes but given that the new behavior could turn
> features on that are currently off it doesn't seem to be beneficial enough
> to warrant changing.
I don't think that argument holds water either. We routinely make
changes that break old postgresql.conf files. Not in minor updates
of course, but none of this is material for back-patching.
Then I'd pick throwing an error if a floating point value is assigned to a parameter that is defined to accept integer. I'd rather actually break the file and not silently redefine its contents.
David J.