Re: Do we still need these NOTICEs?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Joe Conway <mail(at)joeconway(dot)com>
Cc: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Do we still need these NOTICEs?
Date: 2002-07-17 04:10:31
Message-ID: 10954.1026879031@sss.pgh.pa.us
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Joe Conway <mail(at)joeconway(dot)com> writes:
> One thing I wondered about here -- is it still possible to use a
> sequence, which is autogenerated by a SERIAL column, as the default
> value for another table?

Sure, same as before.

> If so, does this create another dependency to
> prevent dropping the sequence, and hence the original (creating) table also?

As the code stands, no. The other table's default would look like
nextval('first_table_col_seq')
and the dependency deducer only sees nextval() and a string constant
in this.

Someday I'd like to see us support the Oracle-ish syntax
first_table_col_seq.nextval
which would expose the sequence reference in a way that allows the
system to understand it during static examination of a query.

regards, tom lane

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