Re: getting table name from partition

Hi

pá 30. 7. 2021 v 0:24 odesílatel Bruce Momjian <bruce(at)momjian(dot)us> napsal:

> On Wed, Jul 14, 2021 at 01:45:12PM +0000, PG Doc comments form wrote:
> > The following documentation comment has been logged on the website:
> >
> > Page: https://www.postgresql.org/docs/13/ddl-partitioning.html
> > Description:
> >
> > I would like to add a sentence like this into the description of
> > partitions:
> >
> > You receive the name of the partition table data is from using
> > tableoid::regclass as column name in the select.
> >
> > to tell the option of getting "real" tablename, eg when partitions are
> based
> > on locality.
>
> We already have this sentence in the partition docs:
>
> Since a partition hierarchy consisting of the partitioned table
> and its partitions is still an inheritance hierarchy, all the
> normal
> rules of inheritance apply as described in Section 5.10, with a
> few exceptions:
>
> but it doesn't make it clear that tableoid, which is mentioned in
> Section 5.10 also works, so here is a patch to add a mention of
> tableoid.
>

I think Michal's example is good and very practical, and although formally
it is documented well,
can be useful for a lot of people to see a practical example. This is very
nice usage of tableoid

Regards

Pavel

> --
> Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
> EDB https://enterprisedb.com
>
> If only the physical world exists, free will is an illusion.
>
>