Re: Happy column adding (was RE: [HACKERS] Happy column dropping) - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Happy column adding (was RE: [HACKERS] Happy column dropping)
Date
Msg-id 14178.948821965@sss.pgh.pa.us
Whole thread Raw
In response to Re: Happy column adding (was RE: [HACKERS] Happy column dropping)  (Don Baccus <dhogaza@pacifier.com>)
Responses Re: Happy column adding (was RE: [HACKERS] Happy column dropping)
List 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


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