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Date: Tue, 11 Mar 2025 12:37:41 -0700
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Subject: Re: Duplicate Key Values
To: mark bradley <markbradyju@outlook.com>
Cc: pgsql-general <pgsql-general@postgresql.org>
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From: Adrian Klaver <adrian.klaver@aklaver.com>
In-Reply-To: <SJ2PR22MB4328CEB1B47FC1AC4A996CB3BAD12@SJ2PR22MB4328.namprd22.prod.outlook.com>
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On 3/11/25 11:52, mark bradley wrote:
> 
> 
>     there is an index on node_id as it is the Primary Key.
> 
>     Why do you think there is not?
> 
> My mistake, I misread the output from \d dataset
> 
> 
> 
> Can you elaborate more on point 3.
> 
> Are you calling the Foreign Key relationships subclassing?
> 
> 
> Although I did not explicitly use Postgres to declare inheritance, 
> logically speaking table /dataset/ and /processing _node/ inherit or are 
> subclasses of /node/ because they are subclasses of /node/ in a dataflow 
> diagram.
> 
> 
> In terms of keys, this is accomplished by having the /node_id/ key in 
> the /node/ table appear as a foreign key and as a primary key in both 
> the /dataset/ and /processing_node/ tables.

You will need to show the schema definitions for:

   node
   dataset
   processing_node

Best to do using psql \d <table_name>

Also in from previous \d dataset there where NOT VALID FK definitions.

Did you ever run VALIDATE CONSTRAINT against them?

> 
> 
> 
>     Is there anything in Postgres log at the time you did the above that
>     showed it did more then a REINDEX?
> 
> 
> Not that I can tell.
> 
> 
> 
> 
> Best regards,
> Mark Brady
> _amazon.com/author/markjbrady <https://amazon.com/author/markjbrady>_


-- 
Adrian Klaver
adrian.klaver@aklaver.com