From: Teemu Torma <teemu@torma.org>
To: pgsql-performance@postgresql.org
Subject: Re: How import big amounts of data?
Date: Thu, 29 Dec 2005 15:41:05 +0100
Message-ID: <200512291541.05739.teemu@torma.org> (raw)
In-Reply-To: <43B3B0EA.6070406@andromeiberica.com>
References: <43B3B0EA.6070406@andromeiberica.com>
On Thursday 29 December 2005 10:48, Arnau wrote:
> Which is the best way to import data to tables? I have to import
> 90000 rows into a column and doing it as inserts takes ages. Would be
> faster with copy? is there any other alternative to insert/copy?
I am doing twice as big imports daily, and found the follwing method
most efficient (other than using copy):
- Use plpgsql function to do the actual insert (or update/insert if
needed).
- Inside a transaction, execute SELECT statements with maximum possible
number of insert function calls in one go. This minimizes the number
of round trips between the client and the server.
Teemu
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To: pgsql-performance@postgresql.org
Cc: teemu@torma.org
Subject: Re: How import big amounts of data?
In-Reply-To: <200512291541.05739.teemu@torma.org>
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