From: | Nabil Sayegh <postgresql(at)e-trolley(dot)de> |
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To: | papapep <papapep(at)gmx(dot)net>, pgsql-novice(at)postgresql(dot)org |
Subject: | Re: Filtering duplicated row with a trigger |
Date: | 2003-10-06 16:43:31 |
Message-ID: | 3F819BB3.9060209@e-trolley.de |
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Lists: | pgsql-novice |
papapep wrote:
> Anyone can give me some guide to how the function should do the control
> of duplicated rows?
First tell us what the function should do.
If you just want to ignore the 'duplicate' rows, that's easy:
define 1 column as unique and just insert (without transaction) the data
row by row.
Every 'duplicate' row will throw an error, but since we don't use a
transaction here the row is 'ignored', leaving only rows that are
distinct for that unique column.
I write 'duplicate' in quotes, because you didn't define what you mean
by duplicate.
HTH
--
e-Trolley Sayegh & John, Nabil Sayegh
Tel.: 0700 etrolley /// 0700 38765539
Fax.: +49 69 8299381-8
PGP : http://www.e-trolley.de
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