Re: [HACKERS] Adding PRIMARY KEY info - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [HACKERS] Adding PRIMARY KEY info
Date
Msg-id 199809031537.LAA06997@candle.pha.pa.us
Whole thread Raw
In response to Re: [HACKERS] Adding PRIMARY KEY info  (darcy@druid.net (D'Arcy J.M. Cain))
List pgsql-hackers
> Thus spake Bruce Momjian
> > > I tried adding the PRIMARY KEY info to pg_class but the resulting data
> > > base system simply dumps core everywhere.  Can someone point me to the
> >
> > My recommendation is to find a seldom-used field in pg_class, like
> > relchecks, and find all instances of that in the code, and add code for
> > your new field in all those places.  You need to assign the value in
> > call cases where you are inserting into pg_class, not just the initdb
> > stuff.
>
> Does this relate to the core dumping?  Since there is so far no code
> using this field, how would adding a field dump core?  Can you see
> anything in my description of what I did to account for this.
>
> Your suggestion sounds good for the next step though.  Thanks.

It is possible.  Fields are accessed internally for copying and stuff,
though because it is a byvalue field, it should not matter.

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