Re: how to make table inherits another ?

On Wed, 16 Feb 2005, Tom Lane wrote:

> Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> writes:
>> I know this. I need to create inheritance for already created tables.
>> There is no way to do this using alter table, so I tried to
>> define it by hand :)
>
> Did you remember to set relhassubclass for the parent table?
> AFAIR, all that you really need are that and the pg_inherits row.

Aha, that works. Thanks, Tom.

>
> It'd be a good idea to install a pg_depend entry, and to modify the
> child's pg_attribute rows to show the columns as inherited (attislocal
> and attinhcount) but I believe the latter would only bite you if you
> tried to do ALTER commands on the tables later.
>

I'll save this info.

> regards, tom lane
>

Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83