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@shreve.net
> 
> Perl is the unix world's equivalent of VB - and just as much of an abomination.
> 


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