Re: add function argument name to substring and substr

On Mon, Jul 21, 2025 at 2:31 PM jian he <jian.universality@gmail.com> wrote:
>
> actually,
> section (9.7.3.)
> https://www.postgresql.org/docs/current/functions-matching.html#FUNCTIONS-POSIX-REGEXP
> already have example, like:
> substring('foobar' from 'o(.)b')
>
> new patch attached, split substr, substring to make review more easier.
> v6-0001: add function argument name to function substr
> v6-0002: add function argument name to function substring
>
> v6-0002 incorporated some of the changes in v5-0002-v3-delta.patch.
> some of the changes in v5-0002-v3-delta.patch are not related to this thread,
> so I didn't incorporate them, right now.

hi.

rebased.