Re: Postgresql 7.3.2 Crash - Mailing list pgsql-bugs

From Stephan Szabo
Subject Re: Postgresql 7.3.2 Crash
Date
Msg-id 20030326072606.A60803-100000@megazone23.bigpanda.com
Whole thread Raw
In response to Re: Postgresql 7.3.2 Crash  (Adrian Pop <adrpo@ida.liu.se>)
List pgsql-bugs
On Wed, 26 Mar 2003, Adrian Pop wrote:

>
> > Okay, I think I've localized the cause (but not a fix).
> >
> > >     name_id            bigint    not null default 0,
> >
> > I think the problem occurs with of the hack (mentioned in the last mail)
> > because the default expression is of a different type.  I think it occurs
> > specifically because the default expression is of a by value type and the
> > real type is by reference, but I haven't gone through enough tests to be
> > sure (it works if I make the default a bigint, a timestamp column with a
> > timestamptz expression works but an abstime doesn't)
> >
> > Short term workaround is to make the default expression of the same type
> > as the column rather than merely something that can be converted to
> > that type.
>
> And in table definitions you use getmebigint(0) that makes the
> transformation between value type and bigint type
>
>         name_id      bigint not null default getmebigint(0),
>
> Awful but is working until you'll find the problem.
>
> Question: there isn't any cast operator like this?:
>         name_id      bigint not null default bigint(0)

The conversion/cast would be one of
int8(0), 0::bigint, 0::int8 or CAST(0 as bigint)

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