| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Jim C(dot) Nasby" <jim(at)nasby(dot)net> |
| Cc: | NikhilS <nikkhils(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Additional stats for Relations |
| Date: | 2006-10-19 15:47:53 |
| Message-ID: | 14770.1161272873@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
"Jim C. Nasby" <jim(at)nasby(dot)net> writes:
> BTW, if we add these counters we'll be up to 7 stats dealing with vacuum
> and analyze, and NikhilS has a patch we're finalizing that would add 3
> more. Right now there's 4 slated to go into pg_stat_* in 8.2, but maybe
> we should have a separate view for vacuum/FSM statistics?
I've seen no demonstration of a need for *any* of them, actually,
and am pretty dubious that we want to add so much collection overhead.
At least not without a major redesign of the stats reporting mechanism.
If we just drop in another seven counters, we'll create an immediate 50%
increase in the stats-file I/O volume, even when no vacuuming is
happening at all.
regards, tom lane
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