Re: PL/PGSQL and PL/Perl time issues

From: Travis Bauer <trbauer(at)indiana(dot)edu>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: PL/PGSQL and PL/Perl time issues
Date: 2002-03-19 18:07:59
Message-ID: a78lhs$18un$1@jupiter.hub.org
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

As a followup:

Through the JDBC driver, I set autocommit to false.

At one point when I stopped the program in midstream, the server coughed up
the following message *many* times:

pq_flush: send() failed: Broken pipe

Thanks,
Travis

Travis Bauer wrote:

> I have a PL/PGSQL routine that does one select and a lot (~400 lines) of
> floating point computations. In rapid succession my JDBC application
> calls
> this routine about 170 times. It gets slower as time drags on, taking
> around 5 seconds per call at the beginning and ending up taking about 15
> seconds per call at the end.
>
> I have a much shorter (about 10 lines), but less efficient PL/Perl routine
> that accomplishes the same computation, but does a lot of string matching
> and runs slower. But the same problem occurs Each call takes longer the
> more I call it.
>
> Are there postgress issues I should be aware of regarding calling pl/pgsql
> and pl/perl routines, or using JDBC to call these routines? Is there a
> way to prevent this increase in time?
>
> Thanks,

--
Travis Bauer
http://www.cs.indiana.edu/~trbauer

In response to

Browse pgsql-general by date

  From Date Subject
Next Message Andrew G. Hammond 2002-03-19 18:21:16 Re: [SQL] How to create crude report with psql and/or plpgsql
Previous Message Jean-Luc Lachance 2002-03-19 18:07:58 How to create crude report with psql and/or plpgsql