Re: [HACKERS] VACUUM ANALYZE problem on linux

> Oleg Broytmann <phd@sun.med.ru> writes:
> >    To remind of the problem - I have a problem running VACUUM ANALYZE on a
> > glibc2 linux (Debian 2.0). On solaris it is Ok (and I got a report it is Ok
> > on HP-UX).
> >    Here is the traceback. The problem is in strcoll, don't understand why.
> 
> > Program received signal SIGSEGV, Segmentation fault.
> > 0x40119587 in strcoll ()
> > (gdb) where
> > #0  0x40119587 in strcoll ()
> > #1  0x816cadd in varstr_cmp (arg1=0x4020fccc "      ", len1=0, 
> >     arg2=0x8268604 "      ", len2=0) at varlena.c:511
> > #2  0x816b31d in bpcharlt (arg1=0x4020fcc8 "\n", arg2=0x8268600 "\n")
> >     at varchar.c:504
> 
> Sure looks like strcoll is broken on your platform.  Build a little test
> program and see if strcoll("", "") coredumps ... if the traceback is
> accurate, that's what was getting passed to it.
> 
> BTW, why in the world is varstr_cmp written to duplicate the strings
> it's passed, rather than just handing them off to strcoll() as-is?

It appears he is unsure whether the string is null-terminated, and he is
right in not assuming that.  We have strncmp, but there is no strncoll().

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