Search Postgresql Archives

Re: Tsearch2 really slower than ilike ?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 





                                                  QUERY PLAN
----------------------------------------------------------------------------------------------------------------
Seq Scan on site_rss s (cost=0.00..11863.16 rows=295 width=158) (actual time=17.414..791.937 rows=12 loops=1)
  Filter: (site_name ~~* '%atari%'::text)
  SubPlan
-> Seq Scan on user_choice u (cost=0.00..3.46 rows=1 width=4) (actual time=0.222..0.222 rows=0 loops=12)
          Filter: ((id_site = $0) AND (id_user = 1))
Total runtime: 792.099 ms

First time I run the request I have a result in about 789 miliseconds !!???

I'm using PostgreSQL v7.4.6 with a Bi-Penitum III 933 Mhz and 1 Gb of RAM.

Any idea ... ? For the moment I'm going back to use the ilike solution ... but I was really thinking that Tsearch2 could be a better solution ...


Well I would be curious about what happens the second time you run the query. The first time is kind of a bad example because it has to push the index into ram.

Sincerely,

Joshua D. Drake



Regards,


--
Command Prompt, Inc., home of Mammoth PostgreSQL - S/ODBC and S/JDBC
Postgresql support, programming shared hosting and dedicated hosting.
+1-503-667-4564 - jd@xxxxxxxxxxxxxxxxx - http://www.commandprompt.com
PostgreSQL Replicator -- production quality replication for PostgreSQL

begin:vcard
fn:Joshua Drake
n:Drake;Joshua
org:Command Prompt, Inc.
adr:;;PO Box 215 ;Cascade Locks;OR;97014;US
email;internet:jd@xxxxxxxxxxxxxxxxx
title:Consultant
tel;work:503-667-4564
tel;fax:503-210-0334
x-mozilla-html:FALSE
url:http://www.commandprompt.com
version:2.1
end:vcard


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux