Re: Very slow stored proc - Mailing list pgsql-general

From Együd Csaba (Freemail)
Subject Re: Very slow stored proc
Date
Msg-id 0I9700LRN4V3Y2@mail.vnet.hu
Whole thread Raw
In response to Re: Very slow stored proc  (Alvaro Herrera <alvherre@dcc.uchile.cl>)
Responses Re: Very slow stored proc  (Alvaro Herrera <alvherre@dcc.uchile.cl>)
List pgsql-general
Sorry for misspelling your name. It is almost midnight here...
So Dear Alvaro, [is it ok? :)]

This table is updated (not inserted... just updated) by another server in
every minutes. The procedure creates a few (configurable number of) empty
minutes in advance as a placeholder for the coming measured values. If there
are no empty minute records the value is lost.

If the db server is off for a long time, the minutes must be created
backwards too to avoid the holes. This situation is where many thousands of
records must be inserted at once.

I hope it was clear.

Cheers
-- Csaba


-----Original Message-----
From: Alvaro Herrera [mailto:alvherre@dcc.uchile.cl]
Sent: Thursday, December 23, 2004 11:12 PM
To: Együd Csaba (Freemail)
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Very slow stored proc

On Thu, Dec 23, 2004 at 09:48:56PM +0100, Együd Csaba (Freemail) wrote:

Hi,

> Dear Alvarao,

Wow, now that's a strange misspelling.  I've seen several but this one is
new to me :-D

> would you please so kind explaining me your opinion in details.

What do you want that table for?  If you are using it as input for a query,
it's possible that you can forget about refilling it every now and then, and
instead using a set-returning function (SRF) in the FROM clause of said
query.

--
Alvaro Herrera (<alvherre[@]dcc.uchile.cl>) "I dream about dreams about
dreams", sang the nightingale under the pale moon (Sandman)



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