https://www.postgresql.org/docs/current/functions-matching.html#POSIX-CLASS-SHORTHAND-ESCAPES-TABLE
Table 9.19. Regular Expression Class-shorthand Escape:
> \w [[:alnum:]_] (note underscore is included)
> ...
> \W [^[:alnum:]_] (note underscore is included)
This is misleading as \w *includes* und
On Tue, May 7, 2019 at 4:36 PM Erwin Brandstetter
wrote:
>
> https://www.postgresql.org/docs/current/functions-matching.html#POSIX-CLASS-SHORTHAND-ESCAPES-TABLE
> Table 9.19. Regular Expression Class-shorthand Escape:
>
> > \w [[:alnum:]_] (note underscore is included)
> > ...
> > \W [^[:alnum:]_
