Subject: Re: Query about foreign key details for php framework
To: David Binney <donkeysoft@gmail.com>, pgsql-sql@postgresql.org
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From: Adrian Klaver <adrian.klaver@aklaver.com>
Message-ID: <56D1BEA6.5020707@aklaver.com>
Date: Sat, 27 Feb 2016 07:20:06 -0800
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On 02/26/2016 08:29 PM, David Binney wrote:
> Hey adrian,
>
> You are correct that the distinct will chomp the resultset down to the
> correct count, I am just concerned that there will be cases where it
> might not be accurate between the "rc" and the "kcu" joins as there is
> no table reference. I have simplified the query right down to just the
> join that i am unsure about. You can see below that as soon as i add the
> rc.unique_constraint_name, the distinct is no longer returning one row.
> In this case its fine because the rc values are the same and would
> distinct away, but there might be a case where they are diferent and you
> would have two rows and not know which values are correct?
>

Well it comes down to the question that was asked several times upstream:

what is the information you want to see?

I am not talking about a query, but a description of what attributes you 
want on what database objects.

Also given, from previous post:

"I am a little in the dark as well since this is just a broken piece of 
ORM i am attempting to fix, in the framework."

Is this not something that should be discussed with the framework 
developers, or are we already doing that:)?


-- 
Adrian Klaver
adrian.klaver@aklaver.com


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