Re: continuous copy/update one table to another

From: Adrian von Bidder <avbidder(at)fortytwo(dot)ch>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: continuous copy/update one table to another
Date: 2010-03-01 09:51:00
Message-ID: 201003011051.06026@fortytwo.ch
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Hi Terry,

On Sunday 28 February 2010 22.56:41 Terry wrote:
> I am looking for a way to copy all the data from one table to another
> on a regular basis, every 5 minutes let's say.
>
> INSERT INTO table2 SELECT * FROM table1;

Why do you want this? Is it necessary for the data in table2 to appear only
delayed?

I usually try to avoid all scheduled actions and try to use a "push" or
"pull" model where data is replicated / generated when needed or when it is
generated by the last step. So to replicate (a part of the) data into a 2nd
table, I'd usually go for triggers, or try to avoid having the data
duplication alltogether.

(But obviously, I don't know what you're doing, this is just my opinion
based on a feeling that the underlying problem you're solving might be
solved in a more elegant way.)

cheers
-- vbi

--
Pzat!

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