Re: [PERFORM] TRUNCATE TABLE

2007-08-04 Thread Adriaan van Os
Kevin Grittner wrote: On Mon, Jul 16, 2007 at 7:18 PM, in message <[EMAIL PROTECTED]>, Tom Lane <[EMAIL PROTECTED]> wrote: Somehow, autovac is doing something that makes the filesystem go nuts every so often, and take an astonishingly long time to create an empty file. But autovac itself does

[PERFORM] Default Performance between 8.0 and 8.1

2007-08-04 Thread Ted Jordan
Hi We currently have some databases running under 8.0 and 8.1. I have noticed a significant difference in the time taken to restore dumps between the two versions, with 8.0 being much faster. For example a dump of a few MB will take just seconds to load under 8.0 but the same dump will take

Re: [PERFORM] Performance problems with large telemetric datasets on 7.4.2

2007-08-04 Thread Sven Clement
Hi everybody, The bigint problem was probably a typo because I had to type the entire definitions, as the server is on a vpn and I don't had access with my machine where I wrote the mail, and the 7.4.2 was surely a typo... ;) I apology... OK so beginning on Monday I will test the config on a 8.2.

RES: RES: RES: [PERFORM] Improving select peformance

2007-08-04 Thread Carlos H. Reimer
Hi, Thanks for the suggestions but apparently the problem in another place. I have changed the default_statistics_target from to 1000 but the result is pretty much the same as with when it was 10. After the change the database was vacuumed and analyzed. Let me know if I miss anything. Is there