| From: | Richard Huxton <dev(at)archonet(dot)com> |
|---|---|
| To: | zxo102 ouyang <zxo102(at)gmail(dot)com> |
| Cc: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Greg Smith <gsmith(at)gregsmith(dot)com>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: How to speed up the first-time-searching in pgsql? |
| Date: | 2009-05-28 08:23:57 |
| Message-ID: | 4A1E4A1D.90004@archonet.com |
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| Lists: | pgsql-general |
zxo102 ouyang wrote:
> Hi there,
> Thanks for your suggestions. I do have an application running on the machine
> all the time. In fact, the application keeps writing real-time monitoring
> data into the database. Based on my understanding of your messages, I can't
> do anything to speed up the first-time-searching. Probably I can give a
> waiting process bar to the users and let them wait for the results.
No, I think you missed the detail on some of the answers. There are
limitations (as discussed in the answers), but the simple suggestion in
the first answer will probably help a lot.
Set up a scheduled task to run a big search of the database an hour
before people start work. This can be as simple as a .BAT file running
"SELECT * FROM big_table" triggered by Windows' Task Scheduler.
--
Richard Huxton
Archonet Ltd
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