From: | Dan Gorman <dgorman(at)hi5(dot)com> |
---|---|
To: | mischa(at)ca(dot)sophos(dot)com |
Cc: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: Selects query stats? |
Date: | 2006-05-23 18:33:12 |
Message-ID: | 127D68F6-7620-4A62-8D1A-9B475E7571CD@hi5.com |
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Lists: | pgsql-performance |
In any other DB (oracle, mysql) I know how many queries (selects) per
second the database is executing. How do I get this
number out of postgres?
I have a perl script that can test this, but no way the db tells me
how fast it's going.
(e.g. in oracle: select sum(executions) from v$sqlarea;)
Regards,
Dan Gorman
On May 23, 2006, at 11:32 AM, Mischa Sandberg wrote:
> Dan Gorman wrote:
>> What I am looking for is that our DB is doing X selects a min.
>
> What specifically would you like to measure?
> Duration for specific queries?
> Queries in an app for which you have no source?
> There may be a way to get what you want by other means ...
> Details?
>
> I gather you cannot just time the app that's doing the selects,
> nor extract those selects and run them via psql and time them
> on their own?
>
>>> Dan Gorman wrote:
>>>> All,
>>>> I might be completely crazy here, but it seems every other
>>>> database exposes select query stats. Postgres only exposes
>>>> updates/deletes/inserts. Is there something I am missing here?
>
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
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