Re: [HACKERS] Server crash caused by CHECK on child

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От Stephan Szabo
Тема Re: [HACKERS] Server crash caused by CHECK on child
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Msg-id Pine.BSF.4.21.0109240908330.5229-100000@megazone23.bigpanda.com
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Ответ на Server crash caused by CHECK on child  (Kovacs Baldvin <kb136@hszk.bme.hu>)
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What version are you trying this script on?  I'm not
seeing a crash on my 7.2 devel system (and the update occurs).

On Mon, 24 Sep 2001, Kovacs Baldvin wrote:

> -- Hi Kevin, and everyone!
> -- 
> -- I don't think that I only found a minor bug compared to
> -- the other you wrote in your last letter: the backend crash
> -- is caused by the same CHECK constraint in the child table.
> -- 
> -- However, for you without time to analyzing Kevin's huge
> -- scheme, here is the very simplified, crash-causing script.
> -- 
> ------------------------------------
> 
> drop table child;
> drop table ancestor;
> 
> create table ancestor (
>   node_id int4,
>   a int4
> );
> 
> create table child (
>   b int4 NOT NULL DEFAULT 0 ,
>   c int4 not null default 3,
>   CHECK ( child.b = 0 OR child.b = 1 )
> ) inherits (ancestor);
> 
> insert into ancestor values (3,4);
> insert into child (node_id, a, b) values (5,6,1);
> 
> update ancestor set a=8 where node_id=5;



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