Re: out of range error while restore using pgdump

Samir Magar <samirmagar8(at)gmail(dot)com> writes:
> pg_restore: [archiver (db)] COPY failed for table "tcb_test": ERROR:
> "5.40593839802118076e-315" is out of range for type double precision

That's ... weird. I don't have RHEL7 installed to test, but I don't
see any error for that value on RHEL6 or Fedora 25, which ought to
bracket that version.

I suppose your version of strtod() must be refusing to do gradual
underflow, or else you're running on hardware that doesn't do
IEEE-compliant arithmetic. But I didn't think RHEL supported any
such hardware (unless maybe it's s/390?). And I can't find any
documentation suggesting that glibc supports turning off gradual
underflow, either.

Perhaps you're using some extension that fools around with the
hardware floating-point options?

regards, tom lane