| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | keshav upadhyaya <ukeshav2009(at)gmail(dot)com> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Regarding Sequential Scans count increase each time we press refresh . |
| Date: | 2009-09-25 00:25:06 |
| Message-ID: | 4ABC0DE2.5040202@agliodbs.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-novice pgsql-performance |
Keshav,
> I have one table my_test table . with on index created on one column .
>
>
> I have turned off the sequential scans .
>
> Now when ever i do refresh on this table or press F5 , It increase the
> sequential scans count and
> Sequential tuple read count .
What's a "refresh"?
You can't "turn off" sequential scans. You can only make the planner
less likely to choose them. But if there's no way to get the data you
need other than a seqscan, it's still going to do one.
--
Josh Berkus
PostgreSQL Experts Inc.
www.pgexperts.com
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tim Bowden | 2009-09-25 03:05:01 | Re: what comes after apt-get for a Debian installation? |
| Previous Message | Wm.A.Stafford | 2009-09-24 19:39:03 | what comes after apt-get for a Debian installation? |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Dan Sugalski | 2009-09-25 03:21:55 | PG 8.3 and large shared buffer settings |
| Previous Message | Craig James | 2009-09-24 18:45:28 | Re: High CPU load on Postgres Server during Peak times!!!! |