Обсуждение: Inherited tables vs UNION ALL views

I'm going to create a (manually) partioned table and wonder whether I
should use inherited tables or an explicitly created view using UNION
ALL.  Constraint exclusion is not important for this application
(major updates will directly target the individual tables).

After these considerations, is there still a difference between the
two approaches?

--
Florian Weimer                <fweimer@bfk.de>
BFK edv-consulting GmbH       http://www.bfk.de/
Durlacher Allee 47            tel: +49-721-96201-1
D-76131 Karlsruhe             fax: +49-721-96201-99

Florian Weimer <fweimer@bfk.de> writes:
> I'm going to create a (manually) partioned table and wonder whether I
> should use inherited tables or an explicitly created view using UNION
> ALL.  Constraint exclusion is not important for this application
> (major updates will directly target the individual tables).

IIRC, these should be planned equivalently in 8.2, but they go through
different planner paths in 8.1 and before --- you'll want to check the
specific queries you have in mind and see whether they get planned as
you want.  C-E definitely only works on the inheritance case in 8.1.

            regards, tom lane