Re: docs: Table 9.46. UUID Extraction Functions

> On 4 Sep 2025, at 11:54, Erik Rijkers <er@xs4all.nl> wrote:

> In my hands, copy/pasting from the website page html intto psql these don't work:
> 
> ------
> testdb=# select uuid_extract_version('41db1265-8bc1-4ab3-992f-​885799a4af1d'::uuid);
> ERROR:  invalid input syntax for type uuid: "41db1265-8bc1-4ab3-992f-​885799a4af1d"
> LINE 1: select uuid_extract_version('41db1265-8bc1-4ab3-992f-​885799...
> ------
> 
> Apparently, that's because of the dash characters used: if I re-type those with simple keyboard-minus chars, the statement works as expected.

I believe it is because there is a &zwsp; encoded before the last group, which
was added in a6524105d20b in order to aid line breaking.

> If I copy/paste the result values of the previous table (9.45. UUID Generation Functions) into the uuid_extract_version() function, then the examples work so there the dash-characters are apparently ok.

There is no zero-width-space character there since those lines aren't long
enough to cause line breaks.

> It's not a huge problem but it would be nice to fix the sgml so that it generates copy/paste runnable examples here.

Agreed, it would be a nice to have, but not a showstopper. 

--
Daniel Gustafsson