Re: Looping through arrays

From: David Fetter <david(at)fetter(dot)org>
To: robert(at)webtent(dot)com
Cc: PostgreSQL <pgsql-general(at)postgresql(dot)org>
Subject: Re: Looping through arrays
Date: 2005-11-04 05:18:46
Message-ID: 20051104051846.GA22736@fetter.org
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On Thu, Nov 03, 2005 at 06:15:08PM -0500, Robert Fitzpatrick wrote:
> I have a field with 'AA-BB-CC-DD' and I want to pull those four
> values into an array and then loop through the array inserting
> records into a table for each element. Can you someone point me to
> an example of this in pl/pgsql?

You can do it in SQL, at least in 8.0 and later :)

INSERT INTO bar(blurf)
SELECT (string_to_array('AA-BB-CC-DD','-'))[s.i] AS "foo"
FROM generate_series(
array_lower(string_to_array('AA-BB-CC-DD','-'),1),
array_upper(string_to_array('AA-BB-CC-DD','-'),1)
) AS s(i);

Cheers,
D
--
David Fetter david(at)fetter(dot)org http://fetter.org/
phone: +1 510 893 6100 mobile: +1 415 235 3778

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