Re: Execution time of UPDATE raises dramatically! - Mailing list pgsql-hackers

From Peter Eisentraut
Subject Re: Execution time of UPDATE raises dramatically!
Date
Msg-id Pine.LNX.4.30.0202011557490.687-100000@peter.localdomain
Whole thread Raw
In response to Execution time of UPDATE raises dramatically!  (Vladimir Zamiussky <zami@chat.ru>)
List pgsql-hackers
Vladimir Zamiussky writes:

> When I do UPDATE some_table set value=... where id=...,
> query execution time raises in arithmetic progression!
> After about 50 updates on every row query consumes ~3 sec against 0.3
> sec as it was at the beginning.
> psql takes  ~80% of CPU time (acording to top).
> VACUUM helps to restore execution speed, but i think it is not the way out.
>
> Is it BUG or FEATURE?

It's just a fact of how the system works.

-- 
Peter Eisentraut   peter_e@gmx.net



pgsql-hackers by date:

Previous
From: Vince Vielhaber
Date:
Subject: Re: PostgreSQL crashes with Qmail-SQL
Next
From: Peter Eisentraut
Date:
Subject: Re: TODO Perl documentation question