Re: Incorrect FTS result with GIN index

Oleg,

thanks for your help.

I sent a post to pg-hackers list:
http://old.nabble.com/Query-results-differ-depending-on-operating-system-%28using-GIN%29-ts29213082.html

As to compiling pg... I will no do this since I do not really feel
comfortable doing it and cannot dedicate too much time to this problem.

Artur

Oleg Bartunov wrote:
>
> Artur,
>
> I recommend post your problem to -hackers mailing list. I have no idea,
> what could be a problem.
>
> My machine is:
> uname -a
> Linux mira 2.6.33-020633-generic #020633 SMP Thu Feb 25 10:10:03 UTC 2010
> x86_64 GNU/Linux
>
> PostgreSQL 8.4.4 on x86_64-unknown-linux-gnu, compiled by GCC gcc (Ubuntu
> 4.4.1-4ubuntu9) 4.4.1, 64-bit
>
> As a last resort I recommend you to compile pg yourself and see if the
> problem exists.
>
> Oleg
>
>
> On Tue, 20 Jul 2010, Artur Dabrowski wrote:
>
>>
>> I tested the same backup on our CentOS 5.4 virtual machine (running on
>> xen
>> server) and the results are really weird (118 rows, comparing to 116 on
>> win
>> xp and 123 expected):
>>
>> Aggregate (cost=104.00..104.01 rows=1 width=0) (actual
>> time=120.373..120.374 rows=1 loops=1)
>> -> Bitmap Heap Scan on search_tab (cost=5.35..103.93 rows=25 width=0)
>> (actual time=59.418..120.137 rows=118 loops=1)
>> Recheck Cond: ((to_tsvector('german'::regconfig, keywords) @@
>> '''ee'':*'::tsquery) AND (to_tsvector('german'::regconfig, keywords) @@
>> '''dd'':*'::tsquery))
>> -> Bitmap Index Scan on idx_keywords_ger (cost=0.00..5.34
>> rows=25
>> width=0) (actual time=59.229..59.229 rows=495 loops=1)
>> Index Cond: ((to_tsvector('german'::regconfig, keywords) @@
>> '''ee'':*'::tsquery) AND (to_tsvector('german'::regconfig, keywords) @@
>> '''dd'':*'::tsquery))
>> Total runtime: 120.670 ms
>>
>> And here are the configuration details:
>>
>> PostgreSQL:
>> postgresql84-server-8.4.4-1.el5_5.1
>>
>> # uname -r
>> 2.6.18-164.15.1.el5xen
>>
>> # cat /etc/redhat-release
>> CentOS release 5.4 (Final)
>>
>> # cat /proc/cpuinfo
>> processor : 0
>> vendor_id : GenuineIntel
>> cpu family : 6
>> model : 15
>> model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz
>> stepping : 6
>> cpu MHz : 2333.416
>> cache size : 4096 KB
>> physical id : 0
>> siblings : 1
>> core id : 0
>> cpu cores : 1
>> fpu : yes
>> fpu_exception : yes
>> cpuid level : 10
>> wp : yes
>> flags : fpu de tsc msr pae cx8 apic sep cmov pat clflush acpi
>> mmx
>> fxsr sse sse2 ss ht syscall lm constant_tsc pni cx16 lahf_lm
>> bogomips : 5835.83
>> clflush size : 64
>> cache_alignment : 64
>> address sizes : 36 bits physical, 48 bits virtual
>> power management:
>>
>>
>>
>>
>>
>>
>>
>> Oleg Bartunov wrote:
>>>
>>> Artur,
>>>
>>> I don't know, but could you try linux machine ?
>>>
>>> Oleg
>>>
>>
>>
>
> Regards,
> Oleg
> _____________________________________________________________
> Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru)
> Sternberg Astronomical Institute, Moscow University, Russia
> Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
> phone: +007(495)939-16-83, +007(495)939-23-83
>
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>

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