Horton

Re: Happy column adding (was RE: [HACKERS] Happy column dropping)

Tom Lane <tgl@sss.pgh.pa.us>

View thread
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Don Baccus <dhogaza@pacifier.com>
Cc: Peter Eisentraut <peter_e@gmx.net>, Hiroshi Inoue <Inoue@tpf.co.jp>, PostgreSQL Development <pgsql-hackers@postgreSQL.org>
Date: 2000-01-25T17:39:25Z
Lists: pgsql-hackers 
Don Baccus <dhogaza@pacifier.com> writes:
> However, heap_getattr still won't see the default since it simply
> checks to see of the attribute number falls off the end of the
> tuple and then returns null.

Right.

> There's no provision for then pulling out the default value and
> returning it instead.

Would it even be possible to do that?  I'm not sure that heap_getattr
has any way to find the default.  It only has a TupleDesc, not a
reference to the relation itself...

			regards, tom lane