Re: PL/PGSQL and PL/Perl time issues
От | Travis Bauer |
---|---|
Тема | Re: PL/PGSQL and PL/Perl time issues |
Дата | |
Msg-id | a78lhs$18un$1@jupiter.hub.org обсуждение исходный текст |
Ответ на | PL/PGSQL and PL/Perl time issues (Travis Bauer <trbauer@indiana.edu>) |
Список | 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
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