Re: INSERT UNIQUE row?

From: Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
To: pf(at)pfortin(dot)com, pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: INSERT UNIQUE row?
Date: 2023-07-10 00:06:24
Message-ID: fddb0c02-27cd-4f4b-2c28-45406499dad8@aklaver.com
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On 7/9/23 17:04, Adrian Klaver wrote:
> On 7/9/23 15:58, pf(at)pfortin(dot)com wrote:
>> Hi,
>>
>> Trying to figure out how to insert new property addresses into an
>> existing table.
>>
>> Can a UNIQUE constraint be applied to an entire row?  Adding UNIQUE to
>> each column won't work in such a case since there are multiple properties
>> * on the same street
>> * in the same town
>> * with the same number on different streets
>> * etc...
>
> Does the locality you are in have something like the Property ID# and/or
> Parcel # / Geo ID shown here:
>
> https://property.whatcomcounty.us/propertyaccess/PropertySearch.aspx?cid=0

Should have added, can you create your own surrogate PK to fill the same
role?

>
>>
>> Each row is only unique as an entity; but the columns are not...
>>
>> Is this covered in the docs?
>>
>> Thanks,
>> Pierre
>>
>>
>>
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com

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