RE: Raw constraint & pg_relcheck.rcsrc

> -----Original Message-----
> From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
>
> "Hiroshi Inoue" <Inoue(at)tpf(dot)co(dot)jp> writes:
> > Is pg_relcheck.rcsrc equivalent to the original raw constraint ?
>
> To the best of deparse_expression()'s ability, it should be.
> I'm not real sure why we bother to store it, rather than deparsing
> rcbin on-the-fly on demand...
>

I'm looking at DefineRelation() in commands/creartinh.c.
In case of inheritance,constraints of super classes are
stored using their pg_relcheck.rcbin-s. It seems bad
in case of multiple inheritance. rcsrc-s may be available
instead.

Comments ?

Regards.

Hiroshi Inoue
Inoue(at)tpf(dot)co(dot)jp