Обсуждение: SOLARIS 9 ULTRASPARC BUILD

hello,


attached are the regression.out and regression.diffs files from make check on a
Ultra 2 dual 300MHz CPU running Solaris 9 OS.

Looks like no errorbut the expected due to difference in fp results.

andrea.martano@lighthousetc.net writes:
> attached are the regression.out and regression.diffs files from make check on a
> Ultra 2 dual 300MHz CPU running Solaris 9 OS.

This seems quite bizarre: '          -INFINiTY   ' works but
'infinity' does not?  Please try in psql

    \set VERBOSITY verbose
     SELECT 'infinity'::float4;

and send along the output.

My best guess about it is that strtod() is actively broken on your
platform, and is recognizing the "infinity" input but returning an
incorrect endptr.  I seem to recall that we've heard of such bugs
before.  Can you check for any updates from Sun that might affect
strtod()?

            regards, tom lane

On Tue, Aug 10, 2004 at 03:23:33PM -0400, Tom Lane wrote:
> andrea.martano@lighthousetc.net writes:
> > attached are the regression.out and regression.diffs files from make check on a
> > Ultra 2 dual 300MHz CPU running Solaris 9 OS.
>
> This seems quite bizarre: '          -INFINiTY   ' works but
> 'infinity' does not?  Please try in psql
>
>     \set VERBOSITY verbose
>      SELECT 'infinity'::float4;
>
> and send along the output.
>
> My best guess about it is that strtod() is actively broken on your
> platform, and is recognizing the "infinity" input but returning an
> incorrect endptr.  I seem to recall that we've heard of such bugs
> before.  Can you check for any updates from Sun that might affect
> strtod()?

strtod() on Solaris has long returned the wrong endptr when parsing
"infinity".  Somebody asked about it in comp.unix.solaris in 1995
and I asked again this morning:

http://groups.google.com/groups?&threadm=4118e611%241_3%40omega.dimensional.com

The response indicates that it's a bug fixed in Solaris 10
but probably not released as a patch in earlier versions.

Here's what I get when I run the above commands using a recently
CVS'ed 8.0.0beta1 on Solaris 9.  Interestingly, it works the first
time but not afterwards, perhaps due to the bogus endptr pointing
to memory that's initially zeroed but that gets filled before
subsequent queries.

test=> \set VERBOSITY verbose
test=> SELECT 'infinity'::float4;
  float4
----------
 Infinity
(1 row)

test=> SELECT 'infinity'::float4;
ERROR:  22P02: invalid input syntax for type real: "infinity"
LOCATION:  float4in, float.c:330

--
Michael Fuhr
http://www.fuhr.org/~mfuhr/

On Tue, Aug 10, 2004 at 12:17:47PM +0200, andrea.martano@lighthousetc.net wrote:
>
> attached are the regression.out and regression.diffs files from make check on a
> Ultra 2 dual 300MHz CPU running Solaris 9 OS.
>
> Looks like no errorbut the expected due to difference in fp results.

[snip]

> SELECT 'infinity'::float4;
> ! ERROR:  invalid input syntax for type real: "infinity"

Perhaps PostgreSQL doesn't handle a longstanding misbehavior of
strtod() on Solaris: when passed "Infinity" or its equivalent,
strtod() sets endptr to point one character beyond the terminating
null character instead of to the null character itself.  I asked
about this today in comp.unix.solaris and was told that it's a bug
that will be fixed in Solaris 10.  Here's a similar report from
over nine years ago:

http://groups.google.com/groups?&threadm=3oeojn%24jhk%40agate.berkeley.edu

The thread I started hasn't showed up at groups.google.com yet, but
I think this link will eventually point to it:

http://groups.google.com/groups?&threadm=4118e611%241_3%40omega.dimensional.com

--
Michael Fuhr
http://www.fuhr.org/~mfuhr/