Re: 7.2b2 problem using like 'XXX%' sequential scan

Yes, I vacuumed/reindexed the db,
just tested the latest snapshot, same problem.

bye

Antonio Fiol Bonnín wrote:

>Did you VACUUM ANALYZE on your SMP machine?
>
>Antonio
>
>Giuseppe Tanzilli - CSF wrote:
>
>>Ciao,
>>I'm testing 7.2b2 and I see it is much slower when I use like on column
>>with indexes,
>>the explain sais it is a sequantial scan (same as 7.1.3), but the time
>>it get to complete is much longer.
>>
>>I got the problem only on SMP machine:
>>explain on 7.1.3 say it is a seq scan with cost 18837
>>explain on 7.2b2 say it is a seq scan 22.5
>>
>>on single cpu 7.2b2 says:
>>Index scan with cost 29 and it is very fast!!
>>
>>All platform  are linux/i386 using redhat 7.2 and latest libraries
>>
>>I'm testing latest snapshot just now.
>>
>>thanks
>>
>>
>>
>>--
>>-------------------------------------------------------
>>Giuseppe Tanzilli               g.tanzilli@gruppocsf.com
>>CSF Sistemi srl                 phone ++39 0775 7771
>>Via del Ciavattino
>>Anagni FR
>>Italy
>>
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>
>


-- 
-------------------------------------------------------
Giuseppe Tanzilli        g.tanzilli@gruppocsf.com
CSF Sistemi srl            phone ++39 0775 7771
Via del Ciavattino 
Anagni FR
Italy