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Re: Bug #566: Primary key not working correctly with inheritance

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: aid(at)logic(dot)org(dot)uk, pgsql-bugs(at)postgresql(dot)org
Subject: Re: Bug #566: Primary key not working correctly with inheritance
Date: 2002-01-23 15:55:51
Message-ID: 200201231555.g0NFtpS09396@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-bugs
Sorry, this is a known bug.  See the TODO list.

---------------------------------------------------------------------------

pgsql-bugs(at)postgresql(dot)org wrote:
> Adrian Bool (aid(at)logic(dot)org(dot)uk) reports a bug with a severity of
> 3 The lower the number the more severe it is.
> 
> Short Description Primary key not working correctly with
> inheritance
> 
> Long Description Hi,
> 
> Just started out with postgres (2 days so far!).  I am intrested
> in it's inheritance abilities.
> 
> I have come across something that seems to be a bug as far as
> I can make out.
> 
> See the simple extract in the example code section.
> 
> The second insert should not be allowed as it breaks the primary
> key's unqiueness.  However postgres allows it's insertion.
> 
> If one tries to insert directly into 'parent' the problem does
> not come about - the second insertion is rejected correctly.
> 
> The same applies with the 'unique' constraint - which I think
> should also apply to child tables.
> 
> This is in Postgres 7.1.3 - standard RedHat 7.1 build.
> 
> Hope this is indeed a bug and I've not been wasting your time
> with my newness to postgres.
> 
> Regards,
> 
> aid
> 
> 
> 
> Sample Code create table parent
>   ( id  integer primary key ) ;
> 
> create table child
>   ( name  varchar (30) ) inherits (parent) ;
> 
> insert into child values ( 1, 'Adrian' ) ; insert into child
> values ( 1, 'John' ) ;
> 
> 
> No file was uploaded with this report
> 
> 
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--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

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Subject: Re: Bug #566: Primary key not working correctly with
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