Re: Query about foreign key details for php framework - Mailing list pgsql-sql

From Adrian Klaver
Subject Re: Query about foreign key details for php framework
Date
Msg-id 56D1BEA6.5020707@aklaver.com
Whole thread Raw
In response to Re: Query about foreign key details for php framework  (David Binney <donkeysoft@gmail.com>)
Responses Re: Query about foreign key details for php framework  (David Binney <donkeysoft@gmail.com>)
List pgsql-sql
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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