Re: PDF book July 2, 2000 version

Can someone comment on this? Why doesn't OID work in foreign keys.
Seems this is a bug.

> First off I want to say thank your for creating a sorely needed reference and
> sharing it with the online world via the PDF document.
>
> I do have one minor complaint though. I'm learning Postgres from your book
> although I'm familiar with the basics of SQL. I was at first excited then
> discouraged by the OID section of your book. I think a much needed
> addition to the OID limitations section is that the OID field can not be
> referenced in a foreign key. IE
>
> CREATE TABLE t1( i INTEGER);
> CREATE TABLE t2( id OID REFERENCES t1(oid));//dose not work
>
> You use the OID is a foreign key of sorts in the example, but you never qualify
> that using the foreign key constraint system in Postgres will not allow you to
> automate this. I realize the OID section comes long before the constraints
> chapter, but a quick qualification would still make things clearer. Without
> the ability to use the OID field as a reference for foreign keys, it's
> usefulness is very limited.
>
> Keep up the good work, I can't wait to buy the finished product!
>
> _________________________
> Richard Rowell
> rrowell(at)shreve(dot)net
>
> Perl is the unix world's equivalent of VB - and just as much of an abomination.
>

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