I am sorry about this Jim, please understand that I am a newbie and am trying to solve long vacuum time problems and get a handle on speeding up queries/reports. I was pointed to pg_stats and that's where I am at now. I have added this into my conf file:
| stats_start_collector | TRUE |
| stats_reset_on_server_start | FALSE |
| stats_command_string | TRUE |
However, these being production servers, I have not enabled these:
| stats_row_level |
| stats_block_level |
Yes, I have re-started the server(s). It seems like I query tables to get the info. If so, are there any queries written that I can use?
Thanks for following up on this with me.
Yudhvir
===
On 5/14/07,
Jim C. Nasby <
decibel@decibel.org> wrote:
On Mon, May 14, 2007 at 11:09:21AM -0700, Y Sidhu wrote:
> The stats_block_level and stats_row_level are NOT enabled. The question is
> how to use pg_stats. Do I access/see them via the ANALYZE command? or using
> SQL. I cannot find any document which will get me started on this.
Ok, we're both confused I think... I thought you were talking about the
pg_stat* views, which depend on the statistics collector (that's what
the stats_* parameters control).
That actually has nothing at all to do with pg_stats or pg_statistics.
Those deal with statistics about the data in the database, and not about
statistics from the engine (which is what the pg_stat* views do...).
If you want to know about pg_stats, take a look at
http://www.postgresql.org/docs/8.2/interactive/view-pg-stats.html ...
but normally you shouldn't need to worry yourself about that. Are you
trying to debug something?
Information about the backend statistics can be found at
http://www.postgresql.org/docs/8.2/interactive/monitoring.html
--
Jim Nasby decibel@decibel.org
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
--
Yudhvir Singh Sidhu
408 375 3134 cell