Re: [HACKERS] Re: [SQL] Proposed Changes to PostgreSQL

> Tom Lane wrote:
>
> > I'll comment on the other issues later ... but I will say that I don't
> > think it's acceptable to add *any* overhead to standard-SQL queries
> > in order to support inheritance better. The vast majority of our users
> > want SQL performance and don't give a damn about inheritance. We have
> > to pay attention to that.
>
> Well I see that pg_class has columns like "relhasindex". If we added a
> "relhassubclass", the overhead should be unmeasureable.

Yes, but how do you keep that accurate? If I add indexes, then drop
them, does relhasindex go to false. Could you do that for relhassubclass?

--
Bruce Momjian | http://www.op.net/~candle
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026