Re: Change pg_attribute textual link to an actual link

> On 22 Oct 2018, at 01:27, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> 
> Daniel Gustafsson <daniel@yesql.se> writes:
>> In the System catalog/pg_attrdef documentation, there is a reference to
>> pg_attribute with the text "see below".  That makes sense in the PDF version
>> (and similar renderings), but in the web version it seems a bit odd as
>> pg_attribute is on the next page, not below.
> 
>> The attached patch changes it to an actual link instead, but simply removing
>> the "see below" bit is another approach which isn't out of line with other
>> parts of the documentation (I opted for link since I personally prefer that).
> 
> I agree with your change, but I wonder if the sentence after this one
> doesn't need some work too.  It seems to predate ALTER COLUMN SET DEFAULT.
> We could add a mention of that, or just stop trying to describe the
> preconditions, and say something like "only columns for which a default
> value has been explicitly set will have an entry here”.

I think your latter suggestion pretty much covers all we need, so updated the
patch with that too.

cheers ./daniel