Re: function runs slow

Поиск
Список
Период
Сортировка
Искать
От
Charles Holleran
Тема
Re: function runs slow
Дата
Msg-id
BAY126-DS5D96AD15C627711C38AF9CEBB0@phx.gbl
Список
Дерево обсуждения
function runs slow Charles Holleran <scorpdaddy@hotmail.com>
Re: function runs slow "A. Kretschmer" <andreas.kretschmer@schollglas.com>
Re: function runs slow Mladen Gogala <mladen.gogala@vmsinfo.com>
Yep. That was it. Thanks so much. 

Charlie

-----Original Message-----
From: "A. Kretschmer" 
Date: Thu, 15 Jul 2010 05:47:59 
To: 
Subject: Re: [NOVICE] function runs slow

In response to Charles Holleran :
> Why is it slow when the same un-functionized query was fast?  The tbl_a has
> est. 30,000,000 records.  It has an index for (x,y) pairs.  It has an index for
> date_observed.  So good results on the straight query.  Where did I go wrong
> with the function? 

The planner isn't able to choose the right plan because he don't know
the actual parameters.

You can do EXECUTE 'string that contains your query' to enforce
re-planning the query.

http://www.postgresql.org/docs/current/static/plpgsql-statements.html#PLPGSQL-STATEMENTS-EXECUTING-DYN


Regards, Andreas
-- 
Andreas Kretschmer
Kontakt:  Heynitz: 035242/47150,   D1: 0160/7141639 (mehr: -> Header)
GnuPG: 0x31720C99, 1006 CCB4 A326 1D42 6431  2EB0 389D 1DC2 3172 0C99

-- 
Sent via pgsql-novice mailing list (pgsql-novice@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-novice
В списке pgsql-novice по дате отправления
От: A. Kretschmer
Дата:
Сообщение: Re: function runs slow
От: Tovo J. RABEMANANTSOA
Дата:
Сообщение: Could not start server
FAQ