I've been asked for the transaction rate we have on an installed Postgres server. Where and how can I get this information. I could not find anything in the documentation. I have root access to the system.
this is definitelly not nice approach, but it works.
connect to database, and issue this command:
begin; create table not_previously_existsing(id int4); select xmin from pg_class where relname = 'not_previously_existsing'; rollback;
returned value is id of the transaction that created the table.
repeat this command every so often (mrtg does that every 5 minutes), and you can see how it grows.
depesz
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