Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp> writes:
> Hello. I found that 9.5 has an undocumented difference from 9.4
> in type cast in pl/pgsql and I think it might better be mentioned
> as a change of behavior in release notes.
> Whether do you think it is worth mentioning or not in release notes?
This seems unnecessarily alarmist to me. Anybody who's in the habit
of converting between float4 and float8 will already be used to this
behavior, because it is what has always happened everywhere else in
the system.
regards, tom lane